taxonID	type	description	language	source
038687F1FFFEFFFA18C91C403477FC88.taxon	description	(Fig. 1)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFEFFFA18C91C403477FC88.taxon	materials_examined	Types examined. Lectotype (presently designated). Rio Purus / Amazon Roman / ♂ / jan. / Typus / Asphaera purana m. / NHRS-MAAC 000000071 (male, NHRS). Paralectotypes. Rio Purus / Amazon Roman / febr. / [red square label] / Paratypus / NHRS-MAAC 000000072 (1 male, NHRS). Rio Purus / Amazon Roman (2 females, NHRS). Rio Purus / Amazon Roman / Asphaera pu-rana [sic.] Wse. (1 female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFEFFFA18C91C403477FC88.taxon	description	Original description. ‘ Ovalis, convexiuscula, dilute flava, antennis pedibusque testaceis, femorum apice, tibiis tarsique infuscatis, prothorace obsolete punctulato margine laterali bisulcato, elytris obsolete punctulatis, pone basin subimpressis, fascia communi baseos, utrinque abbreviata, maculaque ante apicem metallico coeruleis aut violaceis. — Long. 5 – 6,5 mm Rio Purus, Januar, Februar, 2 ♂ 3 ♀ ’.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFEFFFA18C91C403477FC88.taxon	description	Measurements. Lectotype: ♂ LB = 6.1 mm, WB = 3.9 mm; Paralectotype: ♂ LB = 5.7 mm, WB = 3.3 mm, ♀ LB = 6.6 – 6.8 mm, WB = 3.8 – 3.9 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFEFFFA18C91C403477FC88.taxon	discussion	Remarks. The lectotype of Asphaera purana is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing right antennomeres IV – XI. We confirm the placement of this species in Asphaera based on the following characters: distance between antennal sockets less than the transverse diameter of antennal socket in frontal view, second antennomere about half as long as third antennomere, anterolateral callosity of pronotum long and directed anteriorly, lateral margin of elytron explanate (see Konstantinov et al. 2022). The current species is very similar to the lectotype of Asphaera aemula Illiger, 1807 (Van Roie et al. in prep) and may well be conspecific, however A. purana has a less angulated apical elytral spot and a darker scutellum. Future studies should evaluate these species.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFDFFFA18C918EA37F5F822.taxon	description	(Fig. 2)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFDFFFA18C918EA37F5F822.taxon	materials_examined	Type examined. Lectotype (presently designated): Umarituba / Sv. Amaz. Exp. Roman / 30 april / Typus / TYPE Chloëphaga sparsata [m.] J. Bechyne det., 1957 / NHRS-MAAC 000000254 (female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFDFFFA18C918EA37F5F822.taxon	description	Original description. ‘ Amazonas, Rio Negro: Umarituba, 30. iv. Long. 4 mm. Testacé, modérément brillant, antennes (base exceptée) noirâtres. Cette espèce ressemble beaucoup le Walterianella paupera Illiger, par sa forme générale et par sa coloration, dont elle se distingue par ses caractères génériques et secondairement par le 1 ᵉ ʳ article des tarses postérieurs aussi long que le 2 ᵉ (chez la majorité des Walterianella cet article est aussi long que les deux suivants réunis). Elle est voisine de la précédente Ch. trinidadensis: Tête imponctuée. Partie coupée des angles antérieurs du prothorax presque horizontale. Disque des élytres nettement ponctué (grossissement de 20 ×). Denticule antéapical des tibias postérieurs haut et aigu. C h. sparsata: Orbites munis de quelques points grands. Elle [anterolateral angles of pronotum] se dirige obliquement en avant. Ponctuation élytrale obsolète, à peine reconnaissable sous le grossissement de 40 – 50 ×. Cette élévation [anteapical dentation] a forme d’une dent basse en triangle rectangulaire. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFDFFFA18C918EA37F5F822.taxon	description	Measurements. Lectotype: ♀ LB = 4.1 mm, WB = 2.3 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFDFFFA18C918EA37F5F822.taxon	discussion	Remarks. The lectotype of Chloëphaga sparsata is designated here to be a unique bearer of this name and the standard for its application The lectotype is missing the right antenna and left antennomeres VIII – XI, as well as all right mesotarsomeres. The rest of the legs are badly visible due to the specimen being glued to a board. Although the lectotype bears a label ‘ TYPE’, there was no holotype fixed in the original publication. Therefore, according to the ICZN (1999), article 73.1 and 73.2, we considered this specimen to be a syntype, thus a lectotype designation was in order. The genus Capraita Bechyné, 1957 is a replacement name for Chloëphaga Weise, 1899 because of homonymy of the latter with Chloephaga Eyton, 1838 (Aves Linnaeus, 1758). We keep this species in Capraita for now, although its placement should be evaluated in future revisions due to considerable overlap between the genera Capraita and Walterianella Bechyné, 1955. It is closely related to Capraita insignita (Boheman, 1859), also treated in the present manuscript.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C91BAD35ACFC8B.taxon	description	(Fig. 3)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C91BAD35ACFC8B.taxon	materials_examined	Types examined. Holotype fixed by monotypy: Rio Purus / Amazon Roman / febr. / Typus / Homophoita gloriosa m / NHRS-JLKB 000078650 (female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C91BAD35ACFC8B.taxon	description	Original description. ‘ Elongata-ovata, parum convexa, pallide testaceo-flava, nitida, elytris viridi-aeneis, linea transversa juxta basin antennarum vertice scutelloque nigris, clypeo, macula frontali, prothorace maculisque quatuor elytrorum (1, 1, 1, 1) flavo-albidis. — Long. 7, 5 mm Rio Purus, Februar. 1 ♀ ’.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C91BAD35ACFC8B.taxon	description	Measurements. Holotype: ♀ LB = 7.8 mm, WB = 4.2 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C91BAD35ACFC8B.taxon	discussion	Remarks. Due to the statement in the original description that only one female was used to describe the species, we assume here that the current type studied is a holotype fixed by monotypy. The holotype is missing the left antenna. We confirm the current placement in the genus Omophoita Chevrolat, 1836 based on the following characters: anterolateral corner of pronotum with lateral side straight, projecting directly forward, thickened, intercoxal prosternal process narrow (see Konstantinov et al. 2022). Bechyné (1971: 292) lists this species as a synonym of O. angustilineata (Jacoby, 1905). Although Bechyné (1971) is an unpublished catalog, we do treat it as published since it is publicly accessible (although currently the website where it is hosted is offline) and other authors like Furth (2017) also treated it as such. We confirm this synonymy with O. angustolineata, having studied multiple specimens from Brazil, Peru and Bolivia (Van Roie et al. in prep).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C918F73469F90C.taxon	description	(Fig. 4)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C918F73469F90C.taxon	materials_examined	Types examined. Lectotype (presently designated): Brasil. Staud. / Bras / Homophoita superba m. / NHRS-MAAC 000000070 (female, NHRS). Paralectotypes: Manáos / Amazon Huebner (3 males, 5 females, 1 damaged specimen without elytra and without abdomen, NHRS). Manáos / Amazon Huebner / [5 exe] (1 female, NHRS). Manáos / Amazon Huebner / Omophoite [sic.] Superba Ws. J. Bechyne det., 1965 (1 female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C918F73469F90C.taxon	description	Original description. ‘ Oblongo-ovata, convexiuscula, subtus testaceo-flava, antennis (articulo primo subtus excepto) pedibusque nigricantibus, femoribus basi ferrugineis, capite nigro, clypeo maculaque quadrata frontis prothoraceque albidis, elytris metallico purpureo-cupreis, singulo maculis quatuor albidis, prima rotunda juxta basin, caeteris transversis fasciiformibus. — Long 4, 5 mm. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C918F73469F90C.taxon	description	Measurements. Lectotype: ♀ LB = 4.7 mm, WB = 2.6 mm; Paralectotypes: ♂ LB = 4.0 – 4.2 mm, WB = 2.1 – 2.3 mm; ♀ LB = 4.5 – 4.6 mm, WB = 2.4 – 2.5 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFFAFFFD18C918F73469F90C.taxon	discussion	Remarks. The lectotype of Homophoita superba is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing right antennomeres II – XI and shows signs of fungal hyphae. One paralectotype is quite damaged, missing the elytra. One paralectotype had been identified by Bechyné in 1965, but since it bears the same labels as the rest of the type series, we assume this is a type specimen as well. We confirm the placement of this species in Omophoita Chevrolat, 1836 based on the following characters: anterolateral corner of pronotum with lateral side straight, projecting directly forward, thickened, intercoxal prosternal process narrow (see also Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C91BAD34ABFC8B.taxon	description	(Fig. 5)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C91BAD34ABFC8B.taxon	materials_examined	Types examined. Lectotype (presently designated): Rio Autaz / Amazon Roman / okt / Typus / Oedionychis decolorata m. / NHRS-JLKB 000078645 (female, NHRS). Paralectotypes: Rio Autaz / Amazon Roman / sep (4 females, NHRS). Rio Autaz / Amazon Roman / okt (5 females, NHRS). Rio Autaz / Amazon Roman / sep / Oedionychis decolorata Wse. (1 female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C91BAD34ABFC8B.taxon	description	Original description. ‘ Elongato-ovalis, convexiuscula, obsolete pomacea, antennis pedibusque nigricantibus, fronte angusta, elytris crebre subtilissime punctatis singulo vittis duabus brunnescentibus (interiore interrupta) obsolete insignatis. — Long. 5 – 6 mm Rio Autáz, September, October. 11 Ex. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C91BAD34ABFC8B.taxon	description	Measurements. Lectotype: ♀ LB = 5.8 mm, WB = 3.3 mm; Paralectotypes: ♀ LB = 5.4 – 6.3 mm, WB = 3.0 – 3.6 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C91BAD34ABFC8B.taxon	discussion	Remarks. The lectotype of Oedionychis decolorata is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing left antennomeres VIII – XI. We place this species in the genus Walterianella based on the following characters: eyes big, interocular space about as wide as diameter of eye, pronotal borders widely explanate, flattened, prosternal process keeled (see Konstantinov et al. 2022). Possibly, the present species forms a color morph of Walterianella oculata (Fabricius, 1801) (see Van Roie et al. 2024: 41 – 43) but more study of both species is needed to confirm this.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C918F73343F853.taxon	description	(Fig. 6)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C918F73343F853.taxon	materials_examined	Types examined. Lectotype (presently designated): Rio Autaz / Amazon Roman / okt / Typus / Oedionychis delineata m. / NHRS-JLKB 000078646 (female, NHRS). Paralectotypes: Rio Autaz / Amazon Roman / sep. / ♂ (1 male, NHRS). Rio Autaz / Amazon Roman / aug. / Oedion. delineata Wse. (1 female, NHRS). Rio Autaz / Amazon Roman / sep. (1 male, 5 females, NHRS). Rio Autaz / Amazon Roman / okt. (5 females, NHRS). Rio Autaz / Amazon Roman / nov. (1 female, NHRS). Rio Autaz / Amazon Roman / may (1 female, NHRS). Paralectotype ‘ var. a’: Rio Autaz / Amazon Roman / okt. / var. a / NHRS-JLKB 000078649 (1 female, NHRS). Rio Autaz / Amazon Roman / sep. / var. a (1 gender uncertain, NHRS). Paralectotype ‘ var. b’: Rio Autaz / Amazon Roman / nov. / var. b / NHRS-JLKB 000078648 (1 female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C918F73343F853.taxon	description	Original description. ‘ Elongato-ovalis, convexiuscula, sordide flava, nitida, antennis (basi et apice exceptis) fuscis, linea abbreviata ad marginem prothoracis, sutura vittisque tribus angustis elytrorum, supra marginem lateralem plus minusve connexis, nigris. — Long. 5 – 6,5 mm Manaós, Mai; Rio Atuáz, August – November. 20 Ex. Var a. Signaturis nigris prothoracis et elytrorum plus minusve deficientibus. Var. b. Elytro singulo maculis duabus nigris, prima basali, secunda ante apicem. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C918F73343F853.taxon	description	Measurements. Lectotype: ♀ LB = 6.3 mm, WB = 3.4 mm; Paralectotypes: ♂ LB = 5.1 – 5.6 mm, WB = 2.3 – 2.9 mm, ♀ LB = 5.8 – 7.3 mm, WB = 3.1 – 4.3 mm; Paralectotype ‘ var. a’: ♀ LB = 6.9 mm, WB = 3.7 mm; Paralectotype ‘ var. b’: ♀ LB = 6.4 mm, WB = 3.8 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF7FFF018C918F73343F853.taxon	discussion	Remarks. The lectotype of Oedionychis delineata is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing left antennomere II – XI. We place this species in the genus Walterianella based on the following characters: eyes big, interocular space about as wide as diameter of eye, pronotal borders widely explanate, flattened, prosternal process keeled (see Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91E3D37F1F800.taxon	description	(Fig. 8)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91E3D37F1F800.taxon	materials_examined	Types examined. Lectotype (presently designated): Montevideo / Kinb. / Typus / laetifica Bhm. / NHRS-JLKB 000078638 (female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91E3D37F1F800.taxon	description	Original description. ‘ Ovata, modice convexa, nigro-caerula, sub-nitida,; capite parce punctato, postice medio sub-laevigato; prothorace subtilissime punctulato, margine vittisque duabus dorsalibus lutescentibus; elytris subtilissime, creberrime punctulatis, limbo marginali anguste lineisque duabus dorsalibus ante apicem conjuctis et dein usque ad apicem continuatis, luteis. — Long. 8 ½, lat. 4 ¾ millim. Patria: Montevideo. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91E3D37F1F800.taxon	description	Measurements. Lectotype: ♀ LB = 8.6 mm, WB = 5.4 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91E3D37F1F800.taxon	discussion	Remarks. The lectotype of Oedionychis laetifica is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing both front legs and the right mid leg. Bechyné moved this species to Alagoasa Bechyné, 1955 in his unpublished catalog (Bechyné 1971: 318). Since other authors treat this catalog as published information, we presently don’t consider the placement in Alagoasa to be a new combination. We do confirm its placement in Alagoasa based on the following characters: vertex with a few punctures, sides of pronotum explanate, body broadly curved, apical metatarsus globosely swollen (see also Konstantinov et al. 2022). It does share some characters with Kuschelina Bechyné, 1951 like a wider interantennal space and relatively small eyes, but it is missing strongly rounded anterolateral corners of pronotum and moniliform antennae (Furth 2017, Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91BAD347FFB34.taxon	description	(Fig. 7)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91BAD347FFB34.taxon	materials_examined	Types examined. Lectotype (presently designated): Rio Jan / Kinb. / Typus / insignita Bhm. / NHRS-JLKB 000078644 (gender uncertain, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91BAD347FFB34.taxon	description	Original description. ‘ Ovata, modice convexa, dilute flavo-testacea, nitida; antennis fuscis, basi apiceque dilutioribus; prothorace subtiliter, crebre punctulato, lateribus late explanato; elytris subtiliter, crebre punctulatis, dorso inter basin et medium leviter impressis. — Long. 3 ¼, lat. 1 ¾ millim. Patria: Brasilia (Rio Janeiro) ’.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91BAD347FFB34.taxon	description	Measurements. Lectotype: LB = 3.4 mm, WB = 1.9 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF4FFF318C91BAD347FFB34.taxon	discussion	Remarks. The lectotype of Oedionychis insignita is designated here to be a unique bearer of this name and the standard for its application. The lectotype is intact. Bechyné (1956) placed this species in a species group including Capraita insignita (Boheman, 1859), C. metriona (Bechyné, 1956), C. obliquata (Bechyné, 1956), C. pleuralis (Bechyné, 1956) (including C. denticulata (Bechyné, 1956), now considered a synonym), C. urbana (Bechyné, 1956), C. submersipes (Bechyné, 1956) and C. wittmeri (Bechyné, 1955). A key to this species group is presented in Bechyné (1956: 1063 – 1065). It is also similar to C. callifera Bechyné, 1959 from Peru and C. perpendicularis Bechyné, 1959 from Bolivia and Peru. Moreover, Bechyné & Bechyné (1977) formed another species group with highly similar species to the present one from the central-Brazilian savannah, including: C. trinidadensis (Bechyné, 1955), C. syncratica Bechyné & Bechyné, 1961, C. ocularia Bechyné & Bechyné, 1977, C. platyptera Bechyné & Bechyné, 1977, C. egleri Bechyné & Bechyné, 1956, C. carinimera Bechyné & Bechyné, 1977, C. amazona (Bowditch, 1912) (replacement name for Oedionychis inconspicua Jacoby, 1905), C. maritima Bechyné & Bechyné, 1977, C. sublaevis Bechyné & Bechyné, 1977, C. derivata (Bechyné, 1955), C. punzonensis Bechyné & Bechyné, 1977, C. thelma Bechyné & Bechyné, 1977 and C. encarpalis Bechyné & Bechyné, 1977. A key to the latter group is provided in Bechyné & Bechyné (1977: 137 – 140). The first author also recently studied the type of Walterianella paupera (Illiger, 1807) from Pará, Brazil, and it also belongs in this species group. Lastly, Walterianella tapuiae Begha & Prado, 2025 belongs in the same cluster of species described above, but the authors did not provide a diagnostic key to separate it from other species. All of the species mentioned here are either placed in Walterianella or Capraita but are congeneric. Ongoing revisions on Capraita and Walterianella (Van Roie & Konstantinov, in prep.) will need to resolve this issue.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91BAD344FFCAF.taxon	description	(Fig. 9)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91BAD344FFCAF.taxon	materials_examined	Types examined. Lectotype (presently designated). Montevideo. / Kinb. / Typus / lepida Bhm. / NHRSJKLB 000078639 (male, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91BAD344FFCAF.taxon	description	Original description. ‘ Ovata, modice convexa, obscure caerula, nitida; antennis basi ferrugineis; prothorace subtilissime punctulato, margine laterali sat late, macula basali transversa, antice sinuata alteraque apicali introrsum rotundata, dilute flavis; elytris subtilissime, sat crebre punctulatis, macula humerali, maculis quatuor inaequalibus pone medium fasciaque obliqua ante medium, medio constricta, dilute flavis. — Long. 4 ½, lat. 2 ½ millim. Patria: Montevideo. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91BAD344FFCAF.taxon	description	Measurements. Lectotype: ♂ LB = 4.7 mm, WB = 2.7 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91BAD344FFCAF.taxon	discussion	Remarks. The lectotype of Oedionychis lepida is designated here to be a unique bearer of this name and the standard for its application. The lectotype is intact. We confirm the placement of this species in Kuschelina Bechyné, 1951 based on the following characters: eyes small, diameter of eye about three times smaller than the width of frons, head strongly punctate, moniliform antennae, epipleura slanted downward, thus visible in lateral view, anterolateral corners of pronotum slightly protruding, rounded, body elongate to oval (Bechyné 1951, Furth 2017, Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91893344FF978.taxon	description	(Fig. 10)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91893344FF978.taxon	materials_examined	Types examined. Lectotype (presently designated): Montevideo / Kinb. / Typus / nigrovittata Bhm. / NHRS-JLKB 000078640 (male, NHRS). Paralectotypes: Montevideo / Kinb. / Allotypus / NHRS-JLKB 000078641 (1 male, NHRS). Montevideo / Kinb. / Paratypus (4 female, 1 male, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91893344FF978.taxon	description	Original description. ‘ Ovata, modice convexa, supra dilute flavescens, subtus testacea; capite crebre, sat profunde punctato, postice antennisque, basi excepta, infuscatis; prothorace elytrisque subtiliter punctulatis, illo vittis tribus, his sutura vittisque quatuor ante apicem abbreviatis, nigris notatis. — Long. 6 – 8, lat. 3 – 4 millim. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91893344FF978.taxon	description	Measurements. Lectotype: ♂ LB = 5.8 mm, WB = 3.4 mm; Parelectotypes: ♂ LB = 6.4 – 6.5 mm, WB = 3.8 – 4.0 mm, ♀ LB = 7.5 – 8.3 mm, WB = 4.5 – 5.1 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFF618C91893344FF978.taxon	discussion	Remarks. The lectotype of Oedionychis nigrotivvata is designated here to be a unique bearer of this name and the standard for its application. The lectotype is intact. One specimen with label ‘ Allotypus’ in fact has the same gender (male) as the specimen marked with ‘ typus’. We confirm the placement of this species in Kuschelina Bechyné, 1951 based on the following characters: eyes small, diameter of eye about three times smaller than the width of frons, head strongly punctate, moniliform antennae, epipleura slanted downward, thus visible in lateral view, anterolateral corners of pronotum slightly protruding, rounded, body elongate to oval (Bechyné 1951, Furth 2017, Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFEA18C91DDA34D4FC3E.taxon	description	(Fig. 11)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFEA18C91DDA34D4FC3E.taxon	materials_examined	Types examined. Lectotype (presently designated): Rio Autaz / Amazon Roman / nov. / Typus / Oedionychis sternalis m. / NHRS-JLKB 000078642 (female, NHRS). Paralectotype: Rio Autaz / Amazon Roman / nov. / Oedionychis sternalis Wse. / NHRS-JLKB 000078643 (female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFEA18C91DDA34D4FC3E.taxon	description	Original description. ‘ Late ovalis, convexiuscula, nitida, testaceo-flava vel testacea, palpis, antennis, fronte, scutello, tibiis tarsique infuscatis, elytris punctulatis obscure metallico violaceis, fascia communi ante medium limboque laterali (hoc apice dilatato) flavis, prosterno rectilineato, laevi, nitidissimo. — Long. 7 mm Manaós, August; Rio Autáz, November. 3 ♀ ’.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFEA18C91DDA34D4FC3E.taxon	description	Measurements. Lectotype: ♀ LB = 8.0 mm, WB = 4.9 mm; Paralectotype: ♀ LB = 7.9 mm, WB = 5.1 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFF1FFEA18C91DDA34D4FC3E.taxon	discussion	Remarks. The lectotype of Oedionychis sternalis is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing right antennomeres III – XI. While the description states the existence of three syntypes, only two syntypes were present in NHRS. Bechyné moved this species to Alagoasa Bechyné, 1955 in his unpublished catalog (Bechyné 1971: 328). We place this species in the genus Callangaltica Bechyné, 1958, earlier containing only one species Callangaltica batesii (Baly, 1859). One of the defining genus characteristics is a lamelliform (keeled) prosternal process, much like that if Walterianella. That character is not clearly present in the syntypes but possibly is only present in male specimens (a character that is also apparent in other genera of Oedionychini, like the stronger keeled process in Walterianella, and the often longer toothed process in Asphaera). However, in all other aspects, C. batesii and C. sternalis comb. nov. share the same morphological characteristics: eyes relatively big, interocular space about 1.5 times the diameter of the eye, thin anterofrontal ridge, clearly defined antennal calli, long and slender antenna, reaching half of the body, tooth-like anterolateral callosity of the pronotum projected laterally, pronotum with a prebasal transverse impression (subtle in C. sternalis comb. nov.), strongly triangular metafemora, serrated elytral margin in apical half and wide elytropleura (in dorsal view) in the first half of the elytra. The species seems to be close in form and / or coloration to Alagoasa steinheili (Jacoby, 1880) from Colombia, and Alagoasa aurora Duckett & Daza, 2004 from Costa Rica and Panama by having a very broadly rounded but flattened habitus and elongated antennae. Those two species should be examined more closely to assess their placement in Alagoasa.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEDFFEA18C91F203303F89C.taxon	description	(Fig. 12)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEDFFEA18C91F203303F89C.taxon	materials_examined	Type examined. Lectotype (presently designated): S. Gabriel / Sv. Amaz. Exp. Roman / 7 jan. / Typus / TYPE Omophoita Gabriela [m.] J. Bechyne det., 1957 / NHRS-MAAC 000000256 (female, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEDFFEA18C91F203303F89C.taxon	description	Original description. ‘ Amazonas, Rio Negro: S. Gabriel, 7. i. Long. 7 – 7,5 mm. Entierement testacé, sommet des tibias, tarses et les antennites 4 et 5 (le uivant manquent) rembrunis. Par ses élytropleures très larges et par sa forme des angles antérieurs du prothorax, cette espèce vient se placer a cote de O. hilaris JAC. [description by comparison with O. hilaris] O. hilaris: Le 3 e antennite aussi long que le 1 er, prothorax 2,5 x aussi large que long au máximum, métépisternes nettement atténués en arrière, 4 e article des tarses posterieurs fortement gonflé. O. gabriela: Cet antennite [3 rd] est plus long que le ler, il est au moins 3 x aussi large que long. Ils [metepisternum] sont presque parallèles. Cet article [4 th] est a peine gonflé. L’article onguéal des tarses postérieurs de O. gabriela est le moins gonflé parmi toutes les nombreuses espèces de ce genre connues jusqu’à présent. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEDFFEA18C91F203303F89C.taxon	description	Measurements. Lectotype: ♀ LB = 7.3 mm, WB = 4.4 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEDFFEA18C91F203303F89C.taxon	discussion	Remarks. The lectotype of Omophoita gabriela is designated here to have a unique bearer of this name and the standard for its application. The lectotype is missing the whole right antenna and left antennomeres III – XI. Although the lectotype bears a label ‘ TYPE’, there was no holotype fixed in the original publication. Therefore, according to the ICZN (1999), article 73.1 and 73.2, we considered this specimen to be a syntype, thus a lectotype designation was in order. We confirm the placement of this species in Asphaera based on the following characters: distance between antennal sockets less than the transverse diameter of antennal socket in frontal view, anterolateral callosity of pronotum long and directed anteriorly, lateral margin of elytron explanate (see Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEC18C91BAD35B0FAA7.taxon	description	(Fig. 13)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEC18C91BAD35B0FAA7.taxon	materials_examined	Type examined. Lectotype (presently designated): R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 11 mars / Typus / TYPE Walterianella curvipes [m] J. Bechyne det., 1957: / NHRS-MAAC 000000264 (male, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEC18C91BAD35B0FAA7.taxon	description	Original description. ‘ Amazonas, Rio Uaupes: Taracua, 1 l. iii. et 5. iv. Long. 8 mm. ♀ inconnue. Testacé, sommet des femur et base des tibias largement rembrunis, antennites 5 – 11 noirâtres, thorax brun maroni, bords réfléchis largement et une tache transversalesur le disque testacés. Taille ovalaire, peu convexe. Tête alutacée, finement ponctuée (grossissement de 40 – 50 x), front moitie aussi large que le diamètre transversal d’un oeil, déprimé. Calus surantennaires grands, fortement convexes, clypeus très fortement défléchi (en 75 ° au front, vu latéralement), carène longitudinale étroite, aigue, carène transversale oblique, commençant au milieu de la carène longitudinale; partie antérieure du clypeus non déprimée. Antennes atteignant le milieu des élytres, très grêles, 3 ” article presque 3 x aussi long que le 2 ”, un peu plus court que le 4 ”, 1 er article quadrangulaire au sommet distal. Prothorax plus brillant (réticulation microscopique visible sous les grossissement de 80 – 100 X), éparsement et finement pointille, ayant sa plus grande largueur a la base, 2,5 x aussi large que long. Côtés faiblement arrondis, rétrécis en avant. Angles antérieur proéminents en avant, les postérieurs presque rectangulaires. Dépression antébasale obsolète. Elytres ovalaires, beaucoup plus larges que le prothorax, opaques, finement ponctués (grossissement de 40 – 50 X), élytropleures très larges, presque aussi larges que la longueur du 1 er antennite. Les 2 tibias antérieurs fortement recourbes au premier tiers, les 4 basitarsites antérieurs fortement dilates, celui des pattes postérieure aussi long que le 2 tarsites suivants réunis. Sinus grand. Saillie intercoxale du prosternum fortement relevée, bianguleuse (avant le milieu et au niveau du bord postérieur de hanches). ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEC18C91BAD35B0FAA7.taxon	description	Measurements. Lectotype: ♂ LB = 7.7 mm, WB = 4.3 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEC18C91BAD35B0FAA7.taxon	discussion	Remarks. The lectotype of Walterianella curvipes is designated here to be a unique bearer of this name and the standard for its application. The lectotype is quite damaged, missing the enire left hind leg and a big portion of the abdomen. However, key morphological characters are still visible. Although the lectotype bears a label ‘ HOLOTYPE’, there was no holotype fixed in the original publication. Therefore, according to the ICZN (1999), article 73.1 and 73.2, we considered this specimen to be a syntype, thus a lectotype designation was in order. A syntype labeled ‘ PARATYPE’ from the same locality but date ‘ 5 April’ is present in the NMB collections (personal data), which becomes a Paralectotype. We confirm the placement of this species in the genus Walterianella based on the following characters: eyes big, interocular space about as wide as diameter of eye, pronotal borders widely explanate, flattened, prosternal process keeled (see Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEF18C91E9B340DFBC2.taxon	description	(Fig. 14)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEF18C91E9B340DFBC2.taxon	materials_examined	Type examined. Lectotype (presently designated): R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 4 mars / Typus / HOLOTYPE ♂ Walterianella malaisei [m.] J. Bechyne det., 1957: / NHRS-MAAC 000000260 (male, NHRS). Paralectotypes: Taracuá / Sv. Amaz. Exp. Roman / 10 mars / Typus / ALLOTYPE ♀ Walterianella malaisei [m.] J. Bechyne det., 1957 / NHRS-MAAC 000000259 (female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 4 mars (1 male, 1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 5 mars (1 male, 1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 10 mars (1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 13 mars (1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 19 mars (1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 22 mars (1 female, NHRS). R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 23 mars (1 male, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEF18C91E9B340DFBC2.taxon	description	Original description. ‘ Amazonas, Rio Uaupés: Taracua, 4., 5., 7., 10., 13., 22. et 23. iii; Rio Negro. Umarituba, 19. 23. iv. Long. ♂ ♀ 6 – 6,5 mm. Testacé ou testacé brun, antennites intermédiaires noirs, bord antérieur et postérieur du thorax largement d’un brun marron ainsi que 3 grandes taches transversales isolées sur chaque élytre, situées l’une après l’autre. Taille ovalaire, dessus brillant, tête alutacée. ♂ Tête imponctuée, front un peu plus étroit que le diamètre transversal d’un oeil, transversalement impressionné derrière les callus surantennaires qui sont grands et bien séparés l’un de l’autre. Clypeus perpendiculaire (90 °), carène longitudinale courte et aiguë, carène transversale située au niveau du bord antérieur des yeux, suivi (en direction vers le labrum) par une large dépression transversale. Antennes minces, dépassant longuement le milieu des élytres, 3 e article un peu plus court que le 4 e, deux fois aussi long que le 2 e. Prothorax fortement transversal, presque 3 × aussi large que long, ayant sa plus grande largeur près de la base, côtés rétrécis en avant et arrondis. Angles antérieurs courtement mucronés, les postérieurs presque rectangulaires. Surface éparsement ponctuée (grossissement de 40 – 50 X), obsolètement impressionnée avant la base. Élytres plus larges que le prothorax, ovalaires, nettement ponctués (grossissement de 20 – 30 X), callus basal large et peu convexe, accentué en arrière par une dépression transversale. Élytropiéures larges, aussi larges que la longueur du 2 e antennite, épipleures concaves en avant. Saillie intercoxale du prosternum lamelliforme et, vue latéralement, anguleuse au tiers antérieur. Les 4 basitarsites antérieurs fortement dilatés, les 2 postérieurs aussi longs que les deux tarsites suivants réunis. Sinus grands. ♀ Tarses grêles, saillie intercoxale du prosternum sans angulation antémédiane, clypeus moins réfléchi (en angle de 100 à 120 °). ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEF18C91E9B340DFBC2.taxon	description	Measurements. Lectotype: ♂ LB = 5.1 mm, WB = 2.9 mm; Paralectotypes: ♂ LB = 4.0 – 4.6 mm, WB = 2.4 – 2.6 mm, ♀ LB = 4.1 – 5.9 mm, WB = 2.2 – 3.1 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFEBFFEF18C91E9B340DFBC2.taxon	discussion	Remarks. The lectotype of Walterianella malaisei is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing left metatarsomeres II – V. Although the lectotype bears a label ‘ HOLOTYPE’, there was no holotype fixed in the original publication. Therefore, according to the ICZN (1999), article 73.1 and 73.2, we considered this specimen to be a syntype, thus a lectotype designation was in order. We confirm the placement of this species in the genus Walterianella based on the following characters: eyes big, interocular space about as wide as diameter of eye, pronotal borders widely explanate, flattened, prosternal process keeled (see Konstantinov et al. 2022).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFE8FFE218C91FBC337FFDEE.taxon	description	(Fig. 15 & 16)	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFE8FFE218C91FBC337FFDEE.taxon	materials_examined	Types examined. Lectotype (presently designated): R. Uaupés Taracua / Sv. Amaz. Exp. Roman / 14 mars / Allotypus / ALLOTYPE Walterianella subordinata [m.] J. Bechyne dat., 1957: / NHRS-MAAC 000000261 (female, NHRS). Paralectotypes: Taracuá / Sv. Amaz. Exp. Roman / 17 mars / HOLOTYPE ♂ Walterianella subordinata [m.] J. Bechyne det., 1957 / NHRS-MAAC 000000262 (male, NHRS). Taracuá / Sv. Amaz. Exp. Roman / 24 april (1 female, NHRS). Taracuá / Sv. Amaz. Exp. Roman / 28 mars (1 male, NHRS).	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFE8FFE218C91FBC337FFDEE.taxon	description	Original description. ‘ Long. ± 6, 5 mm. Testacé sale, antennites 3 – 11 et les bords latéraux du prothorax étroitement noirâtres; dessus brillant, élytres finement pointillés. Par les tibias antérieurs du ♂ recourbés, cette espèce est voisine de la précédente, mais elle est de coloration différente, clypeus et front, vus latéralement, convergents en angle de 90 °, le 3 ᵉ antennite est égal au 4 ᵉ, 2 × aussi large que le 2 ᵉ, prothorax un peu plus que deux fois aussi large que long à angles antérieurs se dirigeant obliquement en dehors, élytropiéures moins larges et la saillie intercoxale du prosternum en forme d’une lamelle simplement convexe, non anguleuse. Les élytropiéures de la ♀ sont étroits, aussi larges que la longueur du 2 ᵉ antennite et la saillie intercoxale du prosternum est simplement relevée, non lamelliforme. Chez un exemplaire le prothorax est entièrement testacé. ’	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFE8FFE218C91FBC337FFDEE.taxon	description	Measurements. Lectotype: ♀ LB = 7.0 mm, WB = 3.9 mm. Paralectotypes: ♂ LB = 5.5 – 6.1 mm, WB = 2.7 – 3.8 mm; ♀ LB = 5.3 mm, WB = 3.1 mm.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
038687F1FFE8FFE218C91FBC337FFDEE.taxon	discussion	Remarks. The lectotype of Walterianella subordinata is designated here to be a unique bearer of this name and the standard for its application. The lectotype is missing the left hind leg and part of the metasternum. Although one of the syntypes bears a label ‘ HOLOTYPE’, there was no holotype fixed in the original publication. Therefore, according to the ICZN (1999), article 73.1 and 73.2, we considered this specimen to be a syntype, thus a lectotype designation was in order. The specimen with label ‘ HOLOTYPE’ is heavily deformed (Fig. 15) and therefore we chose to designate the syntype with label ‘ ALLOTYPE’ as lectotype (Fig. 16). The species belongs in Walterianella, based on the following characters: eyes big, interocular space about as wide as diameter of eye, pronotal borders widely explanate, flattened, prosternal process keeled (see Konstantinov et al. 2022). This species is in actuality a pale variation of Walterianella delineata (Weise, 1921) new combination, previously treated in the present study. Apart from the absence of any black coloration on elytra, there are no meaningful morphological differences. The type localities of both species differ, but both are from the Amazon forest, approximately 1.000 km apart.	en	Roie, Martijn Van, Covelli, María Alejandra Álvarez (2026): Types of new world Oedionychini Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticitae) deposited in the Naturhistoriska Riksmuseet, Stockholm. Zootaxa 5763 (1): 109-137, DOI: 10.11646/zootaxa.5763.1.5, URL: https://doi.org/10.11646/zootaxa.5763.1.5
