Bolboceras ( Bolbapium ) quinquestriatum Boucomont, 1932: 265 Bolboceras quinquestriata : Blackwelder 1944: 220 Bolbapium quinquestriatum : Martínez 1976: 542 A taxonomic revision of Bolbapium Boucomont, 1910 (Coleoptera: Scarabaeoidea: Geotrupidae) Carvalho, Edrielly Carolinne Vaz-de-Mello, Fernando Z. Journal of Natural History 2022 2022-08-18 56 13 - 16 769 828 (Boucomont, 1932) Boucomont 1932 [369,946,542,568] Insecta Bolboceratidae Bolbapium Animalia Coleoptera 40 809 Arthropoda species quinquestriatum  ( Figures 5(d), 9(a), (b), (c), 14(a))      Bolboceras( Bolbapium) quinquestriatum Boucomont, 1932: 265, 266, 268 (original description)     Bolboceras quinquestriata: Blackwelder 1944: 220(checklist)     Bolbapium quinquestriatum: Martínez 1976: 542, 547 (checklist)   Diagnosis Frons without interocular tubercles between eyes. Clypeus with lateral carinae extending backwards; posterior border of the frons with transverse groove. Pronotum mesoanteriorly without evident structures and pronotum with serrated lateral margins ( Figure 5(d)).   Type material.It was possible to analyse one of the types during the curator’s stay at the BMNH in Cuiabá; photos of the specimen were taken during this period. The other types are deposited at the MNHN, which provided photos of the material. Therefore, we here designate a lectotype.   Lectotype.‘Para-/guay; MUSÉUM PARIS/ 1938/ COLL. A. BOUCOMONT; SYNTYPE[red rectangular label]; SYNTYPE/ Bolbapium/ quinquestriatum/ ( Boucomont 1932)’ ( MNHN/ EC10573).   Paralectotypes.‘Boucomont det. 1931/  Bolboceras/  quinquestriatum; Paraguay./ Sapucay./ W. Foster./ 3.xi.1901./ 1905–188.;  Bolboceras/ quinsquestriatum/ Boucomont 1931/ des. E. Carvalho; PARALECTOTYPE. [yellow rectangular label]’ ( BMNH). ‘Para-/guay;  Bolboceras/ 5 – itriatus/ N. ih.;Typus [red rectangular label];  B. quinquestriatus/ Bouc.;MUSÉUM PARIS/ 1938/ COLL. A. BOUCOMONT; SYNTYPE[red rectangular label]; SYNTYPE/ Bolbapium/ quinquestriatum/ ( Boucomont 1932)’ ( MNHN/ EC10572).   Redescription  Body size: Length: 8.11–9.47 mm. Width: 6.28–7.43 mm. Head: Clypeus opaque, with distinct punctuation; sides wider than the central part; clypeal carina with three tubercles, the lateral ones being slightly higher than the middle one; lateral carinae extending backwards ending at the edge of the canthus. Canthus wide compared to other species of the genus, with strong and evident punctuation. Frons flat and without projections, punctuation more concentrated in the anterior region, between the clypeal carinae; other parts with sparse points, distributed unevenly; posterior region of the frons with transverse groove. The last three antennomeres of the antenna, which form the antennal club, have a globular shape, compared to the other species ( Figure 2(c)).   Figure 8.Aedeagus.  Bolbapium quadrispinosum( Luederwaldt, 1931) (a). dorsal view; (b). ventral view; (c). lateral view.  Bolbapium limeiraiCarvalhoand Vaz-de-Mello, sp. nov. (d). dorsal view; (e). ventral view; (f). lateral view.  Bolbapium furtadoiCarvalhoand Vaz-de-Mello, sp. nov. (g). dorsal view; (h). ventral view; (i). lateral view.  Bolbapium sulcifrons Ide and Martínez, 1993 (j). dorsal view; (k). ventral view; (l). lateral view.   Figure 9.Aedeagus.  Bolbapium quinquestriatum( Boucomont, 1932) (a). dorsal view; (b). ventral view; (c). lateral view.  Bolbapium boillyiCarvalhoand Vaz-de-Mello, sp. nov. (d). dorsal view; (e). ventral view; (f). lateral view.  Bolbapium paralucidulum Ide and Martínez, 1993 (g). dorsal view; (h). ventral view; (i). lateral view.  Bolbapium lucidulum( Klug, 1843) (j). dorsal view; (k). ventral view; (l). lateral view.  Pronotum: Serrated side margin and with a row of ventral setae. Without evident structures. Ventral region of the thorax: Metaventrite convex in the central region and with a median groove that follows from the apex the base of the metaventrite, the base being wider than the apex; region where the median groove starts higher than the others, projected upwards; metaventrite surface with setae, except for a small region near the lower margin. Male terminalia: Elongated, parallel and symmetrical dorsal view ( Figure 9(a)); in lateral view, longitudinal parameres to the phallobase ( Figure 9(c)). Sexual dimorphism: This species does not feature sexual dimorphism.   Figure 10.Aedeagus.  Bolbapium modestum( Castelnau, 1840) (a). dorsal view; (b). ventral view; (c). lateral view.  Bolbapium parcepunctatum( Arrow, 1913) (d). dorsal view; (e). ventral view; (f). lateral view.  Bolbapium santanaorumCarvalhoand Vaz-de-Mello, sp. nov. (g). dorsal view; (h). ventral view; (i). lateral view.  Bolbapium borgmeieri Martínez, 1976 (j). dorsal view; (k). ventral view; (l). lateral view.   Figure 11.Aedeagus.  Bolbapium matheusiCarvalhoand Vaz-de-Mello, sp. nov. (a). dorsal view; (b). ventral view; (c). lateral view.  Bolbapium howdeni Martínez, 1976 (d). dorsal view; (e). ventral view; (f). lateral view.  Bolbapium sampaioorumCarvalhoand Vaz-de-Mello, sp. nov. (g). dorsal view; (h). ventral view; (i). lateral view.  Bolbapium caesum( Klug, 1843) (j). dorsal view; (k). ventral view; (l). lateral view.  Designation of type material.  Bolbapium quinquestriatumwas described based on a series type; the author did not mention how many specimens were studied and did not designate the holotype. Currently the types are deposited at the MNHN and BMNH and have been examined, respectively, by photos and in person. We propose to designate the lectotypefor the species to ensure the fixation of the specific name in the best available specimen, in terms of good condition and development of any diagnostic chacacters subject to allometry.   Differential diagnosis.  Bolbapium quinquestriatumis morphologically similar to  B. lucidulum,  B. matheusi sp. nov.,  B. paralucidulum,  B. quinquestriatumand  B. sulcifronsin not presenting the forehead with tubercles and interocular carinae. However, it is easily differentiated by presenting a serrated pronotum edge.  Geographical distribution.  Paraguay( Caazapa, Concepciónand Guairá,).  Non-type material. 5 specimens.   PARAGUAY: Caazapa, Estancia la Lejana, 26°20 ʹS, 55°59 ʹW, 20 .xi.2008, U . Drechselleg . (2 COPL); Concepción, NP Serrania San Luis, [ 22°34 ʹ0”S, 57°28 ʹ0”W], 21–23 .i.2001, Mrácek leg. (2 CEMT).  Guairá, Villarrica, [ 25°46 ʹ33”S, 56°26 ʹ58”W], xi.1928, F . Schadaleg. (1 CEMT). 3892767248 MNHN 40 809 EC10572 2 syntype 3892767267 [486,990,1414,1439] Paraguay Caazapa 45 814 1 Caazapa 3892767578 [192,884,1534,1559] Paraguay -26.333334 Estancia la Lejana 1242 -55.983334 45 814 1 Caazapa 3892767484 [883,904,1534,1559] Paraguay true -26.333334 Estancia la Lejana 1242 -55.983334 45 814 1 Caazapa 3892767525 [999,1152,1534,1559] Drechsel Paraguay true -26.333334 Estancia la Lejana 1242 -55.983334 45 814 1 Caazapa 3892766726 COPL NP Serrania San Luis Paraguay -22.566668 Concepcion 21 -57.466667 45 814 1 Concepcion 3892766824 [993,1000,1568,1593] COPL NP Serrania San Luis Paraguay true -22.566668 Concepcion 21 -57.466667 45 814 1 Concepcion 3892767367 [339,872,1603,1628] Paraguay -25.775833 Villarrica 21 -56.449444 45 814 1 Guaira 3892767063 [969,1118,1603,1628] Schada Paraguay true -25.775833 Villarrica 21 -56.449444 45 814 1 Guaira