Difference between revisions of "Dercetina shirozui"

Latest revision as of 11:58, 13 August 2013

Taxonavigation

Ordo: Coleoptera
Familia: Chrysomelidae
Genus: Dercetina

Name

Dercetina shirozui Kimoto, 1969 – Wikispecies link – Pensoft Profile

• Dercetina shirozui Kimoto, 1969: 63; Kimoto 1989b^[1]: 260 (Taiwan); Kimoto 1991^[2]: 17 (Taiwan).

Type series

Holotype ♀ (KUEC): “(Taiwan) Sungkang Nantou Hsien / 5.V.1965 T. Shirôzu / HOLOTYPE (red label) / Dercetina shirozui Kimoto, n. sp.”. Paratypes: 1 ex., same as holotype (KMNH); 1 ex.: “(Taiwan) Sungkang Nantou Hsien / 1.VI.1965 T. Shirôzu / PARATYPE (blue label) / Dercetina shirozui Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Sungkang Nantou Hsien / 18.V.1965 T. Shirôzu / PARATYPE (blue label) / Dercetina shirozui Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Taiko (= Tahu) – Nihonmatsu (= Sungen) Byoritsu-ken (= Miaoli county) 9.iv.1967 T. Shirozu / PARATYPE (blue label) / Dercetina shirozui Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Alishan, 2300m Chiayi Hsien / 6.vii.1965 S. Kimoto / Japan-U. S. Co-op. Sci. Programme (yellow label) / PARATYPE (blue label) / Dercetina shirozui Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Hokuko (= Peikeng) – Kaminoshima-onsen (= Hushan) Byoritsu-ken (= Miaoli county) 11.iv.1967 T. Shirozu / PARATYPE (blue label) / Dercetina shirozui Kimoto, n. sp.” (KMNH).

Material examined

TAIWAN: 1♂, Hsinchu, Litungshan, 23.III.2007, leg. M.-H. Tsou (TARI); 3♂♂, same locality, 15.III.2009, leg. M.-H. Tsou (TARI); 1♂, Hsinchu, Mamei, 13.III.2011, leg. M.-H. Tsou (TARI); 2♀♀, Hsinchu, Tahunshan, 24.II.2009, leg. S.-F. Yu (TARI); 1♂, 2♀♀, same locality, 1.III.2009, leg. M.-H. Tsou (TARI); 1♂, Hsinchu, Wufeng, 17.II.2009, leg. S.-F. Yu (TARI); 1♂, Hualien, Pilu, 17.V.2009, leg. C.-F. Lee (TARI); 8♂♂, Ilan, Chiuchihtse, 7.XII.2008, leg. M.-H. Tsou (TARI); 1♂, 1♀, Ilan, Suyuan, 28.IV.2009, leg. M.-H. Tsou (TARI); 1♀, Kaoshiung, Tengchih (= Shihshan trail), 2–5.VI.2008, leg. C.-F. Lee (TARI); 22♂♂, same locality, 6.II.2009, leg. M.-H. Tsou (TARI); 1♀, Nantou, Hohuanshan, 18.V.2009, leg. C.-F. Lee (TARI); 1♀, Nantou, Meifeng, 5–8.VI.1980, leg. C. C. Chen (TARI); 1♀, same locality, 7–9.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♀, same locality, 24–26.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 1♂, 1♀, same locality, 22.V.1982, leg. L. Y. Chou (TARI); 1♀, Nantou, Tattaka (= Sungkang), VI.1925, leg. J. Sonan (TARI); 1♂, 1♀, same locality, 4.IV.2010, leg. Y.-T. Wang (TARI); 2♂♂, Nantou, Tatachia, 9.VI.2009, leg. C.-F. Lee (TARI); 3♀♀, same locality, 27.IV.2010, leg. C.-F. Lee (TARI); 2♀♀, Nantou, Tayuling, 9-16.VI.1981, leg. K. S. Lin & B. H. Chen (TARI); 1♀, Nantou, Tsuifeng, 3.VI.1980, leg. L. Y. Chou & C. C. Chen (TARI); 3♀♀, same locality, 8.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♀, same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 2♀♀, Nantou, Wushe, 6–11.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♂, Pingtung, Tahanshan, 2.II.2008, leg. M.-H. Tsou (TARI); 1♀, same locality, 3.III.2008, leg. C.-F. Lee (TARI); 1♂, 1♀, same locality, 21.III.2009, leg. M.-H. Tsou (TARI); 1♂, same locality, 6.III.2010, leg. U. Ong (TARI); 1♂, same locality, 28.IV.2012, leg. M.-H. Tsou (TARI); 2♀♀, same locality, 16.IV.2012, leg. C.-F. Lee (TARI); 1♂, 2♀♀, Taoyuan, Hsitsun, 12.IV.2009, leg. M.-H. Tsou (TARI); 2♂♂, 2♀♀, Taoyuan, Hsuehwunao, 10.IV.2011, leg. M.-H. Tsou (TARI); 1♀, Taoyuan, Lalashan, 2.IV.2009, leg. H.-J. Chen (TARI); 1♀, same locality, 2.IV.2009, leg. C.-F. Lee (TARI); 1♂, same locality, 4.V.2010, leg. S.-F. Yu (TARI); 1♀, same locality, 14.V.2009, leg. C.-F. Lee (TARI).

Diagnosis

Dercetina shirozui is similar to Dercetina azumai with metallic green elytra and yellowish brown legs but differs by its metallic green head, prothorax, meso- and metathoracic ventrites (in contrast with yellowish brown ones in Dercetina azumai). Some individuals of Dercetina shirozui with blackish brown legs may be similar to Dercetina itoi. However, Dercetina shirozui is distinguished from Dercetina itoi by the prominent punctures on the pronotum.

Redescription

Color (Figs 43–44) metallic green or blue, legs and abdomen yellowish brown, antenna dark brown or blackish brown. Antennal calli with deep furrow in middle; vertex with dense distinct punctures, disc shagreened. Pronotum 1.5-1.6 times wider than long, disc evenly flat, with dense prominent punctures, and a pair of deep round fovea at sides; lateral margin straight, narrowed posteriorly, anterior margin slightly concave, posterior margin slightly rounded. Elytra more or less widened posteriorly, apex convergently rounded, 1.7–1.8 times longer than wide, disc with densely prominent punctures; epipleurae with dense prominent punctures. Male. Length 4.8–5.1 mm, width 2.1–2.3 mm. Ratio of length of antennomeres III to XI about 1.0: 2.2: 2.0: 2.0: 2.1: 2.0: 1.9: 1.7: 2.2; ratio of length to width of antennomeres III to XI about 2.4: 4.9: 3.9: 4.1: 4.1: 3.9: 3.8: 3.4: 4.6 (Fig. 49). Penis (Fig. 51) slender, about 7.3 times longer than wide, parallel-sided, basally widened, apex broadly rounded; tectum membranous, with two longitudinal rows of stout setae; weakly curved in lateral view (Fig. 52); endophallus with four pairs of small teeth near apex, ventral sclerite long, about 0.7 times as long as penis, base truncate, apex bifurcate and curved in lateral view; with a cluster of setae near apex; a pair of elongate dorsal sclerites located from base to apical 1/3, apices pointed and recurved subapically. Female. Length 5.5–6.3 mm, width 2.7–3.0 mm. Antenna 11-segmented, filiform (Fig. 50), ratio of length of antennomeres III to XI about 1.0: 1.6: 1.5: 1.5: 1.5: 1.5: 1.4: 1.4: 1.7; ratio of length to width of antennomeres III to XI about 2.6: 4.3: 3.7: 3.7: 3.6: 3.7: 3.4: 3.4: 4.1. Sternite VIII (Fig. 53) weakly sclerotized laterally and apically, with a few setae along apical margin, spiculum extremely long. Spermathecal receptaculum (Fig. 51) elongate and weakly swollen; pump narrow and strongly curved, apex narrowly rounded; spermathecal duct short, apically narrowed, shallowly projecting into receptaculum. Gonocoxae (Fig. 54) widely connected in middle, about 3.4 times longer than wide, curved inwards in apical 1/3, with ten long setae in apical 1/3.
Color variation. Some populations have blackish brown legs and black antenna (Fig. 45).

Host plants

Aceraceae: Acer albopurpurascens Hayata; Actinidiaceae: Actinidia callosa Lindl.; Rosaceae: Prunus phaeosticta (Hance) Maxim.; Saxifragaceae: Deutzia pulchra Vidal and Schizophragma integrifolium Oliv. var. fauriei (Hayata) Hayata; Stachyuraceae: Stachyurus himalaicus Hook. f. & Thomson ex Benth.; Staphyleaceae: Turpinia formosana Nakai.

Distribution

Taiwan. It is widespread in mountains above 1000 m (Fig. 14).

Taxon Treatment

• Lee, C; Bezděk, J; 2013: Revision of the genus Dercetina from Taiwan and their similar species, with description of a new species from Myanmar (Insecta, Chrysomelidae, Galerucinae) ZooKeys, 323: 1-33. doi

Other References

1. ↑ Kimoto S (1989b) Chrysomelidae (Coleoptera) of Thailand, Cambodia, Laos and Vietnam. IV. Galerucinae. Esakia 27: 1-241.
2. ↑ Kimoto S (1991) The Taiwanese Chrysomelidae (Insecta: Coleoptera) collected by Dr. Kintaro Baba, on the occasion of his entomological survey in 1987, 1988, 1989. Kurume University Journal 40: 1-27.

Images

Figures 12–15. Distribution map of Dercetina species, solid line: 1000 m, broken line: 2000 m. 12 Dercetina azumai 13 Dercetina itoi 14 Dercetina shirozui 15 Dercetina taiwana.  Figures 43–48. Habitus of Dercetina species. 43 Dercetina shirozui, dorsal view 44 Dercetina shirozui, ventral view 45 Dercetina shirozui, color variation 46 Dercetina taiwana, dorsal view 47 Dercetina taiwana, ventral view 48 Dercetina taiwana, color variation.  Figures 49–55. Dercetina shirozui. 49 Antenna, male 50 Antenna, female 51 Aedeagus, dorsal view 52 Aedeagus, lateral view 53 Sternite VIII 54 Gonocoxae 55 Spermatheca.