taxonID	type	description	language	source
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	description	(Figures 1, 3 A, D)	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	materials_examined	Materials examined. Holotype. ♂, “ 宮 ¼ 県 $ 諸県郡 [Miyazaki-ken, Higashimorokata-gun] / 綾町綾Njnj [Aya-chô, Ayaminamigawa] / 12. VIII. 2023 / AEÉ ḆĽ Ḧ 集 [Yuji Tsutsumiuchi leg.] (typed on white card) // [HOLOTYPE] Cryptocephalus (Cryptocephalus) tsutsumiuchii / Shigetoh, 2025 (typed on red card) ” (SEHU). Paratypes. Japan. Kyushu: [Miyazaki Pref.] 2 ♀, Aya-chô, Ayaminamikawa (same as the holotype), 21. VIII. 2023, Y. Tsutsumiuchi leg. (YTPC); 5 ♂, 6 ♀, ditto, 12. VIII. 2023, Y. Tsutsumiuchi leg. (YTPC & HIPC); 1 ♂, 4 ♀, ditto, 20. VIII. 2023, Y. Tsutsumiuchi leg. (HIPC); 2 ♂, 1 ♀, ditto, 21. VIII. 2023, Y. Tsutsumiuchi leg. (YTPC); 1 ♀, ditto, 2. IX. 2023, Y. Tsutsumiuchi leg. (YTPC); 1 ♀, Aya-chô, Minamimata, 29. IX. 2023, T. Saeki leg. (HIPC); 1 ♀, Kunitomi-chô, Fukadoshi, 2. IX. 2023, Y. Tsutsumiuchi leg. (YTPC); 3 ♂, 1 ♀, ditto, 27. VI. 2025, Y. Tsutsumiuchi & H. Shigetoh leg. (YTPC & HIPC).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	diagnosis	Diagnosis. This new species is very similar in general appearance to Cryptocephalus (C.) perelegans (Figure 2 A, B), C. (C.) loochooensis Chûjô, 1935, and C. (C.) ohnoi Kimoto, 1983 but it is clearly separated from these sibling species by the combination of the following characters: scutellum heart-shaped; elytron with five yellowish spots; elytral striae VI to IX complete; pygidium without ridge at middle; median lobe of aedeagus parallel-sided to basal 3 / 5, semicircular apex in dorsal view, upper side becomes membranous after half which expand dorsally and cover the orifice; uniformly convergent to acute apex in lateral view.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	description	Description. Male. Body cylindrical, upper side shiny, 3.05 – 3.30 mm in length. Coloration. Antennal segments black or brown except for segments I to III yellowish brown; head, legs, pygidium, and ventral surface yellowish brown; pronotum black with yellowish brown spots at base, along the basal margin and along the anterior margin yellowish brown; scutellum black; elytron black, each with five yellowish brown spots: 1) basi-scutellar spot elongate, reaching along elytral suture from base to basal 5 / 7, 2) interio-humeral spot slender, shorter or same length to the length of basi-scutellar one, 3) median spot elongate, spread from elytral suture to stria IV, 4) latero-median spot large, spread from stria VI to lateral side of elytron, and 5) apical spot, round, largest of all elytral spots, reaching from basal 2 / 7 to elytral apex. Head. Vertex wrinkled with longitudinal sulcus at middle, irregularly and sparsely punctate bearing with silver setae; the width between the central part of eyes 3.1 times as wide as the ones of the upper part; eye reniform, oblong, reaching from vertex to the side of clypeus; frons uneven, irregularly punctate bearing with silver setae, interspace of punctures with minute punctures; clypeus trapezoid, irregularly and weakly punctate, bearing short silver setae; labrum transverse, parallel-sided, anterior margin sinuate, surface smooth. Antennae filiform, reaching to humeri; segment I robust, 2.3 times as long as wide, widest at middle; segment II shortest, barrel-shaped, 1.3 times as long as wide; segment III to V slender, about 4.0 to 5.0 times as long as wide, weakly widened apically, widest near apex; segment VI to X about 3.0 times as long as wide, widest before apex, segment XI widened apically, widest at basal 3 / 5, then suddenly becoming narrowed, gradually convergent to apex. Pronotum moderately convex, transverse, minutely and irregularly punctate, 1.6 times as wide as long, widest at base; anterior margin strongly rounded; lateral margins curved, widened to base; posterior margin sinuated, sharply and posteriorly protrude at middle. FIGURE 1. Cryptocephalus (C.) tsutsumiuchii sp. nov. — A, B, C, G, H, I. male; D, E, F, J. female. — A, D. dorsal habitus; B, E. lateral habitus; C, F. ventral habitus; G. pygidium; H. aedeagus (dorsal view); I. ditto (lateral view); J. spermathca. Scale var = 0.5 mm (H, I), 0.1 mm (J). Scutellum heart-shaped, 1.3 times as long as wide, widest near base, convergent to apex, surface smooth; lateral margins moderately and weakly curved. Elytra 1.2 times as long as wide, widest behind base, moderately punctate in regular striae, striae IV and V, VIII and IX connected near elytral apex, respectively, striae VI and VII connected at basal 3 / 4, the interspaces of striae smooth, wider than punctual diameter, lateral margins weakly narrowed from base to basal 5 / 6, then strongly convergent apically. Pygidium with broadly rounded apex, flat, irregularly punctate, covered with short setae. Ventral surfaces of body with dense punctures and short silver pubescence. Prosternum weakly depressed, lateral sides of posterior margin protruding backward. Abdomen clothed with short pubescens, irregularly and weakly punctate; apex of last ventrite without foveae. Median lobe of aedeagus elongate, in dorsal view parallel-sided to basal 3 / 5, then roundly convergent to semicircular apex, upper side becomes membranous after the basal half, expanding dorsally and covering the orifice, notched medially; in lateral view weakly bent ventrally near base, weakly swollen in half, uniformly convergent to acute apex; ventral margin straight; length of median lobe as same as basal hood. Tegmen Y-shaped, uniformly curved. Female. Body larger than male, 3.89 – 4.10 mm in length. Coloration. Upper side of pronotum and elytra paler than in male; margins of elytral spots unclear, basi-scutellar, median, and apical spots weakly connected each other; antennae shorter than male ones; pronotum 1.8 times as wide as long; elytra parallel-sided to basal 1 / 3, then convergent to apex; apex of last ventrite with foveae; Spermatheca hook-shaped with acute apex. Food plant. Taxillus yadoriki (Loranthaceae).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	distribution	Distribution. Japan (Kyushu).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	discussion	Remarks. This new species was collected from T. yadoriki, which parasitized on woody plants growing in sunny locations (Figure 3 C, F). The adult feed on the leaves scraping the edges (Figures 3 A, D). The eggs are covered with fecal as same as the other species of Cryptocephalinae. This species does not feed the leaves of Castanopsis sp., which was parasitized by T. yadoriki.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735AA05FEAACFDACFC8C9F33.taxon	etymology	Etymology. The scientific name of C. (C.) tsutsumiuchii sp. nov. is dedicated to Mr. Yuji Tsutsumiuchi, a Japanese coleopterist, who discovered this new species.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7358A05FEAACFB3DFF7B9CA7.taxon	description	(Figures 2 A, B)	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7358A05FEAACFB3DFF7B9CA7.taxon	materials_examined	Materials examined. Japan. Kyushu: [Miyazaki Pref.] 1 ♀, Kunitomi-chô, Fukadoshi, 27. VI. 2025, H. Shigetoh leg. (HIPC). The Ôsumi Isls. [Tanegashima Is.] 1 ex., Minamitane-chô, Hirayama, 20. IV. 2024, T. Saeki leg. (HIPC). [Yaku-shima Is.] 2 ♂, Yakushima-chô, Funayuki, 24. V. 2024, T. Saeki leg. (HIPC).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7358A05FEAACFB3DFF7B9CA7.taxon	distribution	Distribution. Japan (Honshu to the Ryukyu Isls.), China & Taiwan (Takizawa, 2007, Lopatin et al., 2010; Schöller, 2024). Food plants. Alnus spp. (Betulaceae), Castanea crenata Siebold et Zucc., Castanopsis spp., Lithocarpus edulis (Makino) Nakai, Quercus serrata Murray (Fagaceae), Amorpha fruticosa L., Lespedeza cyrtobotrya Miq. (Fabaceae), Phyllanthus sieboldianus T. Kuros. (Phyllanthaceae), Fallopia japonica (Houtt.) Ronse Decr. (Polygonaceae), Ardisia sieboldii Miq. (Primulaceae), Acer itoanum (Hayata) H. L. Li (Sapindaceae) (Suzuki & Minami, 2018); Taxillus yadoriki (Loranthaceae) — this study.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7358A05FEAACFB3DFF7B9CA7.taxon	discussion	Remarks. This is a new food plant record for C. (C.) p. perelegans. The adult feeds on the leaves scraping the edges as same as C. (C.) tsutsumiuchii sp. nov. This species has diverse color variations depending on the regions, and some populations were classified as the subspecies and forms (Chûjô, 1954; Nakane, 1963; Kimoto, 1974). Careful study using morphological and molecular analysis is needed to clarify an interspecific status of this species.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735EA05AEAACFD52FDEE9EF4.taxon	description	(Figures 2 C, D, E, F, G, 3 B, E)	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735EA05AEAACFD52FDEE9EF4.taxon	materials_examined	Materials examined. Japan. [Miyazaki Pref.] 5 exs., Saito-shi, Minamikata, 16. IX. 2023, Y. Tsutsumiuchi leg. (HIPC); 3 exs., Kunitomi-chô, Fukadoshi, 27. VI. 2025, H. Shigetoh leg. (HIPC).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735EA05AEAACFD52FDEE9EF4.taxon	distribution	Distribution. China, Japan, N. Korea, Russia, S. Korea & Taiwan (Takizawa, 1980; Moseyko, 2020, 2024). Food plants. Acer palmatum Thunb. (Aceraceae), Hedera rhombea (Miq.) Bean (Araliaceae), Artemisia keiskeana Miq., A. vulgaris L., Dendranthema indicum (L.) Des Moulins (Asteraceae), Alnus hirsuta (Spach) Fisch. ex Rupr., A. japonica (Thunb.) Steud. (Betulaceae), Viburnum sp. (Caprifoliaceae), Coriaria sp. (Coriariaceae), Benthamidia japonica (Siebold et Zucc.) H. Hara (Cornaceae), Rhododendron sp. (Ericaceae), Glochidion sp., Mallotus sp., M. japonicus (L. f.) Müll. Arg., Phyllanthus sp. (Euphorbiaceae), Lycopus maackianus (Maxim. ex Herder) Makino (Labiatae), Lespedeza sp., L. bicolor Turcz., L. cuneata (Dum. Cours.) G. Don, L. cyrtobotrya Miq. (Fabaceae), Castanea sp., C. crenata Siebold et Zucc., Quercus sp., Q. acutissima Carruth., Q. oxyodon Miq., Q. serrata Murray (Fagaceae), Hypericum erectum Thunb., H. patulum Thunb. (Guttiferae), Corylopsis pauciflora Siebold et Zucc., Loropetalum sp. (Guttiferae), Corylopsis pauciflora Siebold et Zucc., Loropetalum sp. (Hamamelidaceae), Lagerstroemia indica L. (Lythraceae), Hibiscus sp. (Malvaceae), Eucalyptus sp., E. robusta Sm., Eugenia sp. (Mytraceae), Fraxinus sieboldiana Blume (Oleaceae), Pinus armandii Franch., P. massoniana Lamb. (Pinaceae), Zea sp. (Poaceae), Ziziphus sp., Z. acidojujuba C. Y. Cheng et M. J. Liu, Z. jujuba Mill. var. spinosa (Bunge) Hu ex H. F. Chow (Rhamnaceae), Fragaria sp., F. x ananassa (Weston) Duchesne ex Rozier, Malus sp., M. asiatica Nakai, M. domestica Borkh., M. halliana Koehne, M. micromalus Makino, M. prunifolia (Willd.) Borkh., Potentilla sp., P. chinensis Ser., Prunus sp., Pr. grayana, Pr. jamasakura Siebold ex Koidz., Pr. mume Siebold et Zucc., Pr. pendula Siebold et Zucc. ' Pendula', Pr. persica (L.) Batsch, Pr. salicina Lindl., Pr. verecunda (Koidz.) Koehne, Pr. x yedoensis Matsum., Pyracantha sp., Pyrus sp., Py. pyrifolia (Burm. f.) Nakai, Rosa sp., R. chinensis Jacq., R. multiflora Thunb., Rubus parvifolius L., Sanguisorba sp., S. officinalis L., Sorbus commixta Hedl., Spiraea japonica L. f. (Rosaceae), Salix sp., S. dunnii C. K. Schneid. (Salicaceae), Cryptomeria japonica (L. f.) D. Don (Taxodiaceae), Zelkova serrata (Thunb.) Makino, Celtis sinensis Pers. (Ulmaceae), Ampelopsis glandulosa (Wall.) Momiy. var. heterophylla (Thunb.) Momiy. (Vitaceae) (Takakura, 1961; Takizawa, 2009; Suzuki et al., 2013): Taxillus yadoriki (Loranthaceae) — this study.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF735EA05AEAACFD52FDEE9EF4.taxon	discussion	Remarks. Cleoporus variabilis was collected in the same location as C. (C.) tsutsumiuchii sp. nov. (Figure 3 C, F). Also, T. yadoriki is newly recorded as a food plant for C. variabilis. The adult feeds on the leaves scraping the surface (Figures 3 B, E). This species has various color variations (cf. Kimoto, 1994; Warchałowski, 2010; Suzuki et al., 2013; Moseyko. 2020). Medvedev (2006) synonymized C. variabilis with C. lateralis in his study of type specimens described by Motschulsky, but Moseyko (2020) dedicated these two species are clearly separated by the shape of aedeagus. In recent catalogue, South Korea is removed from the distribution (Moseyko, 2024). An examination of the voucher specimens used by Takizawa (1980) which are deposited in SEHU, I confirmed that this species is certainly represented from South Korea.	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7352A055EAACFF49FEEC99EF.taxon	materials_examined	Material examined. Japan. Kyushu: [Miyazaki Pref.] 1 ex., Kunitomi-chô, Fukadoshi, 27. VI. 2025, H. Shigetoh leg. (HIPC). Demotina modesta Baly, 1874 Material examined. Japan. Kyushu: [Miyazaki Pref.] 1 ex., Aya-chô, Ayaminamikawa, 2. IX. 2023, Y. Tsutsumiuchi leg. (HIPC). Demotina serriventris Isono, 1990 Material examined. Japan. The Ôsumi Isls.: [Tanegashima Is.] 1 ex., Minamitane-chô, Hirayama, 20. IV. 2024, T. Saeki leg. (HIPC).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
03DA87AF7352A055EAACFD25FB719887.taxon	materials_examined	Materials examined. Japan. Kyushu: [Miyazaki Pref.] 12 exs., Aya-chô, Ayaminamikawa, 2. IX. 2023, Y. Tsutsumiuchi leg. (HIPC); 2 exs., Aya-chô, Minamimata, 29. IX. 2023, T. Saeki leg. (HIPC). The Ôsumi Isls.: [Yaku-shima Is.] 1 ex., Yakushima-chô, Miyanoura-rindô, 25. VII. 2023, T. Saeki leg. (HIPC). The Okinawa Isls.: [sOkinawa-jima Is.] 1 ex., Kunigami-son, Benoki, 29. IV. 2024, T. Saeki leg. (HIPC). Aphthona perminuta Baly, 1875 Materials examined. Japan. Honshu: [Nara Pref.] 2 exs., Nara-kôen, 9. X. 2024, T. Saeki leg. (HIPC).	en	Shigetoh, Hiroaki (2025): The Loranthaceae-feeding leaf beetles (Coleoptera, Chrysomelidae) from Japan, with a description of new species. Zootaxa 5723 (4): 577-586, DOI: 10.11646/zootaxa.5723.4.7, URL: https://doi.org/10.11646/zootaxa.5723.4.7
