Sticholotis denticuligera Wang & Ren

Xingmin Wang, Hermes E. Escalona, Shunxiang Ren & Chen Xiaosheng, 2017, Taxonomic review of the ladybird genus Sticholotis from China (Coleoptera: Coccinellidae), Zootaxa 4326 (1), pp. 1-72 : 13

Sticholotis denticuligera Wang & Ren sp. nov.

( Figures 26–28 , 144–149 , 296 )

Diagnosis. This species can be distinguished from other species of Sticholotis by the body reddish brown, and each elytron with a row of large punctures along the suture, arcuate in mid length ( Figs 26–28 ).

Description. TL: 2.24–2.51 mm, TW: 2.08–2.27 mm, TH: 1.15–1.38 mm, TL/TW: 1.08–1.10; PL/PW: 0.40– 0.41; EL/EW: 0.84–0.87; HW/TW: 0.35; PW/TW: 0.67.

Head brown, with mouthparts yellow. Dorsum uniformly reddish brown, venter dark reddish brown, legs yellowish brown ( Figs 26–28 ). Body almost circular in outline, hemispherical, shiny and glabrous. Head frontal punctures very fine, with short sparse setae, interocular distance 0.67x head width ( Fig. 28 ).

Pronotal punctures fine and densely distributed, separated by 1.0–2.0 diameters. Elytral punctures very fine and shallow, slightly smaller than those on pronotum, 2.5–5.0 diameters apart, with a row of large punctures along the suture, moderately arcuate medially. Elytral margins wide, visible from above.

Prosternum with fine punctures and scattered long setae. Mesoventral punctures large and densely distributed, 0.2–0.5 diameters apart. Metaventrite shiny and broad, covered by coarse and dense punctures distributed at center Elytral epipleuron broad and complete to apex, distinctly foveate to accommodate femoral tips of hind legs. Wings well-developed.

Male genitalia: Penis short, capsule slightly broadening basally and with a small inner process, apex curved with several denticles ( Figs 145–146 ); tegmen with penis guide slightly longer than paramere, in lateral view straight, widest at base, gradually narrowing to apex ( Fig. 147 ); penis guide in ventral view narrowly triangular, widest at base, tapering to apex ( Fig. 148 ); parameres thin and straight.

Female genitalia: Ovipositor elongate and narrowly triangular, styli inconspicuous ( Fig. 149 ).

Holotype: 1male, China, Yunnan: Mengla, Xishuangbanna, [21°30.27′N, 101°31.65′E], ca 800m, 12.x.2006, Wang XM leg ( SCAU) . Paratypes (25): China, Yunnan: 1male, 7females, same data as holotype ; 1male, 2females, Dadugang, Puer, [22°22.35′N, 100°56.68′E], ca 950m, 26.iv.2008, Wang XM et al. leg. (SCAU); 1male, Lianghe to Yingjiang Road , [24°46.96′N, 98°17.62′E], ca 1500m, 30.ix.2006, Wang XM leg. ( SCAU) ; 4males, 1female, Menglun, Xishuangbanna, [21°52.55′N, 101°19.13′E], ca 750m, 21.viii.2005, Ren SX et al. leg (2males, 1female SCAU, 2males, IOZ); 3females, Menglu Farm , [21°26.06′N, 101°18.83′E], ca 560m, 23.iv.2003, Peng ZQ leg. (1female, SCAU, 2females, IOZ) ; 1female, Jiluoshan, Xishuangbanna, [21°58.78′N, 101°7.79′E], ca 1020m, 28.iv.2008, Wang XM leg. (SCAU); 1male, Jiluoshan, Mengla, [21°58.78′N, 101°7.79′E], ca 1020m, 12.x.2006, Wang XM leg. (SCAU); 1male, Yaoqu, Mengla, Xishuangbanna, [21°50.27′N, 101°25.37′E], ca 700m, 8.v.2009, Wang XM leg. (SCAU); 2males, Ainiguzhai, Menglun, Xishuangbanna, [21°54.68′N, 101°10.60′E], ca 700m, 11.v.2009, Wang XM leg. (SCAU).

Distribution. China: Yunnan.

Etymology. The specific epithet is formed from the Latin adjective denticuligera referrs to penis apex with several denticles

Figures

FIGURE 296. Distribution map. S. hoabinhensis Hoàng, 1982. (▲); S. denticuligera sp. nov. (■); S. flammula sp. nov. (●); S. formosana Weise, 1923 ().

FIGURES 20 – 28. 20 – 22: S. carinica (Gorham, 1895). (20) dorsal habitus; (21) lateral habitus; (22) frontal habitus. 23 – 25: S. hoabinhensis Hoàng, 1982. (23) dorsal habitus; (24) lateral habitus; (25) frontal habitus. 26 – 28: S. denticuligera sp. nov. (26) dorsal habitus; (27) lateral habitus; (28) frontal habitus. Scale bars: 0.5 mm.

FIGURES 139 – 149. 139 – 143: S. hoabinhensis Hoàng, 1982. (139) abdomen; (140 – 142) male genitalia: (140) penis; (141) tegmen, lateral view; (142) tegmen, ventral view; (143) ovipositor. 144 – 149: S. denticuligera sp. nov. (144) abdomen; (145 – 148) male genitalia: (145) penis; (146) apex of penis; (147) tegmen, lateral view; (148) tegmen, ventral view; (149) ovipositor. Scale bars: 0.1 mm.