Charaea shirozui ( Kimoto, 1969 )

Bezděk, Jan & Lee, Chi-Feng, 2014, Revision of Charaea (Coleoptera: Chrysomelidae: Galerucinae) from Taiwan, Zootaxa 3861 (1), pp. 1-39 : 21-23

Charaea shirozui ( Kimoto, 1969)

( Figs 46 , 70–75 , 83 , 91 , 97–98 )

Calomicrus shirozui Kimoto, 1969: 43 (original description); Wilcox 1973: 520 (catalogue); Kimoto 1986: 58; Kimoto 1987: 189; Kimoto 1989b: 254; Kimoto 1991: 13; Takizawa et al 1995: 9; Kimoto & Chu 1996: 77 (catalogue); Kimoto & Takizawa 1997: 305 (key), 382; Beenen 2010: 471 (catalogue).

Charaea shirozui: Bezděk 2012: 388 (new combination).

Type locality. “Sungkang, Nantou Hsien”.

Type material examined. Paratypes: 2 ♂♂ ( KMNH), “( Taiwan) / Sungkang / Nantou Hsien [w, p] // 18.V. [h] 1965 / T. Shirôzu [w, p] // PARATOPOTYPE [b, p] // Calomicrus / shirozui / Kimoto, n. sp. [w, h]”; 1 ♀ ( BPBM), “( Taiwan) / Sungkang / Nantou Hsien [w, p] // 1.IV. [h] 1965 / T. Shirôzu [w, p] // PARATYPE [b, p] // Calomicrus / shirozui / Kimoto, n. sp. [w, h]”.

Additional material examined. 74 specimens — TAIWAN: Hsinchu County: 9 ♀♀, Kuanwu, 4.iii.2010, L.- H. Sun leg. ( TARI); 2 ♀♀, Kuanwu, 6.iv.2010, L.-H. Sun leg. ( TARI, JBCB); 1 ♂ 1 ♀, Kuanwu, 30.iv.2010, M.-H. Tsou leg. ( TARI); 1 ♂ 1 ♀, Kuanwu, 7.v.2010, L.-H. Sun leg. ( TARI); 1 ♀, Tahunshan, 8.ix.2009, S.-F. Yu leg. ( TARI). Hualien County: 6 ♂♂, Hsinpaiyang, 8.iii.2009, U. Ong leg. ( TARI). Kaohsiung County: 2 ♂♂, Shishan logging trail, 24.iii.2009, M.-H. Tsou leg. ( TARI); 1 ♂, Chungchihkuan, 17.iv.2012, L.-P. Hsu leg. ( TARI); 1 ♀, Tengchih, 5.ii.2009, M.-H. Tsou leg. ( TARI); 2 ♀♀, Erhchituan, 8.iii.2013, B.-X. Guo leg. ( TARI). Nantou County: 14 ♀♀, Meifeng, 2150 m, 7.–9.v.1981, K. S. Lin & S. C. Lin leg. ( TARI); 1 ♀, Meifeng, 2150 m, 8.–11.v.1984, K. C. Chou & C. C. Pan leg. ( TARI); 2 ♀♀, Meifeng, 2150 m, 22.v.1982, L. Y. Chou leg. ( TARI); 3 ♂♂, Meifeng, 20.iv.2011, C.-F. Lee leg. ( TARI); 1 ♂ 1 ♀, Tsuifeng, 2300 m, 23.v.1982, L. Y. Chou leg. ( TARI); 1 ♀, Tunyuan, 10.iii.2010, Y.-F. Hsu leg. ( TARI). Pingtung County: 2 ♂♂, Tahanshan, 16.ii.2013, Y.-T. Chung leg. ( TARI); 1 ♀, Peitawushan, 22.xii.2012, W.-C. Liao leg. ( TARI); 1 ♀, Peitawushan, 17.ii.2010, M.-H. Tsou leg. ( TARI). Taoyuan County: 1 ♂ 3 ♀♀, Lalashan, 8.iii.2009, M.-H. Tsou leg. ( TARI); 1 ♂ 2 ♀♀, Lalashan, 2.iv.2009, C.-F. Lee leg. ( TARI). Taichung County: 3 ♂♂ 3 ♀♀, Tahsuehshan, 19.iv.2011, J.-C. Chen leg. ( TARI, 1 ♂ 1 ♀ in NMPC); 1 ♂, Anmashan, 22.iii.2011, C.-F. Lee leg. ( JBCB). Taitung County: 2 ♂♂ 1 ♀, Haituan, 1.iv.2011, J.-C. Chen leg. ( TARI); 1 ♀, Litao, 29.iii.2011, M.-H. Tsou leg. ( TARI). Yilan County: 1 ♀, Nanshan, 9.v.2011, M.-H. Tsou leg. ( TARI).

Redescription. Measurements. Males: 3.0– 4.4 mm, females: 3.8–4.7 mm. Body elongate, subparallel, dorsal side glabrous, elytra with sparse short setae on apical and lateral slopes. Body, antennae and legs metallic blue, antennomeres II and III and knees brownish, abdomen completely yellow.

Male ( Fig. 83 ). Anterior part of head semiopaque with fine punctures and setation on anterior margin of clypeus and along lateral margins of nasal keel. Frontal tubercles triangular. Vertex microsculptured. Interantennal space 1.25 times as wide as transverse diameter of antennal socket. Interocular space wide, 2.42 times as wide as transverse diameter of eye. Antennae filiform, 0.65 times as long as body, length ratio of antennomeres equals 10- 6-7-10- 10-10-10-10 -10-9-11.

Pronotum lustrous, 1.20 times as broad as long, widest in anterior third, covered with fine punctures. Anterior margin slightly concave, lateral margins moderately rounded in anterior half, posterior halves parallel, posterior margin straight in middle, laterally rounded. Anterior margin with fine border, lateral and posterior margins moderately bordered. Anterior angles sharp, swollen, with setigerous pore, posterior angles rectangular, pointed, with setigerous pore, all pores bearing long pale seta, additional short setae visible on lateral margins.

Elytra long, 1.85 times as long as wide and 0.68 times as long as body.

Protarsomere I and mesotarsomere I elongate with slightly rounded lateral margins, metatarsomere I slender, parallel. Length ratio of protarsomeres I, II, III and V equals 11-6-5-8, of metatarsomeres I, II, III and V equals 14- 7-5-9.

Prosternal process not visible between procoxae. Posterior margin of last ventrite with two incisions, lobe distinctly impressed ( Fig. 73 ).

Aedeagus symmetrical, middle part slightly convergent apically, apex triangular strongly bent down ( Fig. 70 ). Internal sac relatively simple, with only one long thin sclerite ( Fig. 91 ).

Female. Interocular space wider, 3.15 times as wide as transverse diameter of eye. Last ventrite remarkably pointed at apex with deep anterolateral incisions ( Fig. 75 ). Pygidium subtriangular with widely rounded lateral margins and apex ( Fig. 74 ). Sternite VIII very small, elongate, tignum four times as long as sternite VIII ( Fig. 72 ). Spermatheca: nodulus gradually convergent to to C-shaped cornu, proximal spermathecal duct straight, gradually wider basally ( Fig. 71 ).

Distribution. Taiwan.

Biology. Unknown.

Differential diagnosis. Charaea shirozui is similar to Ch. haruoi sp. nov. Males differ in coloration of the abdomen which is completely yellow in Ch. shirozui and yellow with black ventrite I in Ch. haruoi sp. nov. Protarsomere I in males of Ch. shirozui is elongate with slightly rounded lateral margins and is subtriangular in Ch. haruoi sp. nov. The aedeagus of Ch. haruoi sp. nov. is slightly divergent anteriorly and the bent apex is shorter, while Ch. shirozui has an aedeagus that is slightly convergent anteriorly and the bent apex is longer. In lateral view the ventral side of the aedeagus of Ch. haruoi sp. nov. is more convex ( Figs 70 , 119 ). Sclerotized parts of the internal sac of Ch. haruoi sp. nov. are always black and are orange to brown in Ch. shirozui ( Figs 91 , 128 ). The females of both species can be distinguished by the shape of the last ventrite which is remarkably pointed at the apex, with deep anterolateral incisions, in specimens of Ch. shirozui and possess rounded apex and shallow anterolateral emarginations in those of Ch. haruoi sp. nov. ( Figs 75 , 124 ).

Figures

FIGURES 40 – 51. Elucidated aedeagus in dorsal view with internal sac not everted. 40 — Charaea kelloggi; 41 — Ch. mimicum; 42 — Ch. akkoae (from Japan); 43 — Ch. pseudoakkoae; 44 — Ch. sasajii; 45 — Ch. miyamotoi; 46 — Ch. shirozui; 47 — Ch. taiwanum; 48 — Ch. maxbarclayi sp. nov.; 49 — Ch. chujoi (from Japan); 50 — Ch. houjayi sp. nov.; 51 — Ch. haruoi sp. nov. Not to scale.

FIGURES 70 – 75. Details of Charaea shirozui. 70 — aedeagus (dorsal and lateral views); 71 — spermatheca; 72 — sternite VIII; 73 — male last ventrite; 74 — female pygidium; 75 — female last ventrite. Scale bars: 0.5 mm for Figs 70 and 73 – 75, 0.25 mm for Figs 71 – 72.

FIGURES 82 – 87. Habitus of Charaea. 82 — Ch. sasajii (male, 3.2 mm); 83 — Ch. shirozui (male, 3.6 mm); 84 — Ch. taiwanum (male, 4.9 mm); 85 — Ch. houjayi sp. nov. (paratype, male, 4.2 mm); 86 — Ch. maxbarclayi sp. nov. (holotype, male, 5.1 mm); 87 — Ch. haruoi sp. nov. (paratype, male, 4.0 mm).

FIGURES 88 – 92. Everted internal sac of aedeagus. 88 — Charaea akkoae (Japan, dorsal view); 89 — Ch. pseudoakkoae (dorsal and lateral views); 90 — Ch. sasajii (dorsal view); 91 — Ch. shirozui (lateral view); 92 — Ch. taiwanum (dorsal view). Not to scale.

FIGURES 93 – 100. Type specimens of Charaea and their labels. 93 – 94 — Exosoma pseudoakkoae (holotype, male, 3.6 mm); 95 – 96 — Exosoma sasajii (paratype, male, 3.1 mm); 97 – 98 — Calomicrus shirozui (paratype, male, 3.6 mm); 99 – 100 — Exosoma taiwanum (paratype, male, 4.6 mm).

FIGURES 119 – 124. Details of Charaea haruoi sp. nov. 119 — aedeagus (dorsal and lateral views); 120 — spermatheca; 121 — sternite VIII; 122 — male last ventrite; 123 — female pygidium; 124 — female last ventrite. Scale bars: 0.5 mm for Figs 119 and 122 – 124, 0.25 mm for Figs 120 – 121.

FIGURES 125 – 128. Everted internal sac of aedeagus. 125 — Charaea chujoi (Japan, dorsal and lateral views); 126 — Ch. houjayi sp. nov. (dorsal and lateral views); 127 — Ch. maxbarclayi sp. nov. (dorsal and lateral views); 128 — Ch. haruoi sp. nov. (dorsal and lateral views). Not to scale.