Charaea kelloggi ( Gressitt & Kimoto, 1963 )

Bezděk, Jan & Lee, Chi-Feng, 2014, Revision of Charaea (Coleoptera: Chrysomelidae: Galerucinae) from Taiwan, Zootaxa 3861 (1), pp. 1-39 : 6-8

Charaea kelloggi ( Gressitt & Kimoto, 1963)

( Figs 5–10 , 24 , 29 , 34–35 , 40 )

Calomicrus kelloggi Gressitt & Kimoto, 1963: 572 (original description); Wang & Yang 1998: 103; Yang 2002: 644. Taphinellina kelloggi: Wilcox 1973: 452 (catalogue); Beenen 2010: 489 (catalogue).

Charaea kelloggi: Beenen & Warchałowski 2010: 62 (catalogue).

Type locality. “Ta-chu-lan, Shaowu Distr., NW Fukien Prov.”.

Type material examined. Paratype: ♂ ( BMNH), “Para– / type [round white label with yellow collar, p] // Kweichow, SW. China / Kweiyang, alt. 1000 / Meters, VII–11–1940 / J. Linsley Gressitt [w, p] // Brit. Mus. / 1963–245. [w, p] // US [w, p] // PARATYPE [p] / Calomicrus / kellogi [h] / Gressitt & Kimoto [y, p] // Calomicrus / sp. nov. I [h] / Gressitt & Kimoto det. 196 [p] 2 [w, h]”.

Additional material examined. 31 specimens — TAIWAN: Kaohsiung County: 4 ♂♂ 2 ♀♀, Tonatrail, 12.iii.2013, B.-X. Guo leg. ( TARI, 1 ♂ 1 ♀ in JBCB). Pingtung County: 2 ♂♂ 1 ♀, Hsuhai, 20.i.2012, M.-H. Tsou leg. ( TARI); 2 ♂♂ 14 ♀♀, Peitawushan, 21.iii.2011, J.-C. Chen leg. ( TARI); 2 ♂♂, Tahanshan, 28.vi.2009, Y.-T. Chung leg. ( TARI); 1 ♀, Tahanshan, 3.iv.2013, Y.-T. Chung leg. ( TARI). HONGKONG: 1 ♂, Tai Po Kan, 28.iii.2009, P. Aston leg. ( PACH). CHINA: Guangdong: 2 ♂♂, Heishiding, W of Qixing, forested stream valley, at light, 1.–3.v.2011, 23°27.9´N 111°54.3´E, 190 m, M. Fikáček & J. Hájek leg. ( NMPC).

Redescription. Measurements. Males: 5.2–6.6 mm, females: 5.5–6.7 mm. Dorsal side glabrous, oval, convex. Body, legs and antennae completely metallic blue or bluish-black, abdomen black, bicolorous, yellow or yellow with first ventrite infuscate along coxal cavities.

Male ( Fig. 24 ). Anterior part of head very finely punctate, covered with fine short setae. Interantennal space 1.30 times as wide as transverse diameter of antennal socket. Interocular space 2.30 time as wide as transverse diameter of eye. Antennae filiform, 0.55–0.60 times as long as body, length ratio of antennomeres equals 11-6-6- 11 - 11-10-10-10 -10-11-14.

Pronotum lustrous, 1.30 times as broad as long, strongly convex, widest in anterior third, covered with two kind of punctation: fine punctures on whole surface and large deeper punctures missing along lateral margin and in the middle of disc. Anterior margin straight, lateral margins slightly rounded, posterior margin widely rounded. Anterior margin unbordered, with very fine border visible laterally, lateral margins with broad border, posterior margin moderately bordered. Anterior angles obtusangulate, swollen, with setigerous pore, posterior angles obtusangulate, with small pointed tip with setigerous pore, all pores bearing long pale seta, additional short setae visible on lateral margins of pronotum.

Elytra 1.35–1.40 times as long as wide and 0.70 times as long as body.

Length ratio of protarsomeres I, II, III and V equals 10-7-6-11, of metatarsomeres I, II, III and V equals 12-8- 6-14.

Prosternal process not visible between procoxae. Posterior margin of last ventrite with two short incisions, surface of middle lobe distinctly concave ( Fig. 8 ).

Aedeagus symmetrical, subtubular, slightly wider anteriorly, apex ventraly with triangular process ( Fig. 5 ). Internal sac as in Fig. 29 .

Female. Interantennal space 1.40–1.45 times as wide as transverse diameter of antennal socket. Interocular space wider, 2.55 time as wide as transverse diameter of eye. Antenna slightly shorter than in male, 0.50–0.55 times as long as body. Last ventrite with posterior margin widely rounded ( Fig. 10 ). Pygidium apex cut, slightly concave ( Fig. 9 ). Sternite VIII drop-shaped, setae cummulated along anterion margin, tignum slender, twice longer than sternite VIII ( Fig. 7 ). Spermatheca: nodulus gradually continuing to cornu, cornu C-shaped, proximal duct almost straight basally, then suddenly narrowed ( Fig. 6 ).

Variability. Based on the original description, the specimens from continental China have black abdomina. However, the paratype examined has a yellow abdomen. The abdomina of specimens from Hongkong and Guangdong is bicolorous with ventrites I and II black, the rest of abdomen yellow. All the Taiwanese specimens have abdomina completely yellow.

Distribution. China: Fujian ( Gressitt & Kimoto 1963, Wang & Yang 1998, Yang 2002), Guizhou ( Gressitt & Kimoto 1963), Guangdong ( Gressitt & Kimoto 1963, present paper). New species for Hongkong and Taiwan.

Biology. Some specimens were collected on the flowers of Castanopsis formosana (Skan) Hayata (Fagaceae) and Styrax formosana Matsum. var. formosana Matsum. (Styracaceae) .

Differential diagnosis. See Ch. mimicum .

Figures

FIGURES 5 – 10. Details of Charaea kelloggi. 5 — aedeagus (dorsal and lateral views); 6 — spermatheca; 7 — sternite VIII; 8 — male last ventrite; 9 — female pygidium; 10 — female last ventrite. Scale bars: 0.5 mm for Figs 5 and 8 – 10, 0.25 mm for Figs 6 – 7.

FIGURES 23 – 28. Habitus of Charaea. 23 — Ch. costatum (female, 5.1 mm); 24 — Ch. kelloggi (male, 5.1 mm); 25 — Ch. mimicum (male, 5.3 mm); 26 — Ch. miyamotoi (male, 4.2 mm); 27 — Ch. akkoae (male, Japan, 3.3 mm); 28 — Ch. pseudoakkoae (male, 3.7 mm).

FIGURES 29 – 31. Everted internal sac of aedeagus. 29 — Charaea kelloggi (dorsal, lateral and ventral views); 30 — Ch. mimicum (dorsal, lateral and ventral views); 31 — Ch. miyamotoi (dorsal view). Not to scale.

FIGURES 32 – 39. Type specimens of Charaea and their labels. 32 – 33 — Exosoma costatum (holotype, female, 4.0 mm); 34 – 35 — Calomicrus kelloggi (paratype, male, 4.6 mm); 36 – 37 — Calomicrus miyamotoi (paratype, male, 3.5 mm); 38 – 39 — Calomicrus takizawai (holotype, male, 3.6 mm).

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.