Sticholotis obesa Wang & Ren, sp. nov.
Creators: name: Xingmin Wang
name: Hermes E. Escalona
name: Shunxiang Ren
name: Chen Xiaosheng
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Sticholotis
Sticholotis obesa

description: Sticholotis obesa Wang & Ren sp. nov.
(Figures 113–115, 285–289, 303)
Diagnosis. This species is close to S. latissima in male genitalia, but can be distinguished from the latter by elytra with 12 black spots (Fig. 113), and strongly curved apex of penis guide (Fig. 287). In S. latissima, elytra have four large black spots (Fig. 71) and apex of penis guide is not curved (Fig. 219).
Description. TL: 2.34–2.70 mm, TW: 2.11–2.41 mm, TH: 1.12–1.25 mm, TL/TW: 1.11–1.12; PL/PW: 0.45– 0.45; EL/EW: 0.86–0.88; HW/TW: 0.37; PW/TW: 0.64.
Head yellowish brown. Pronotum yellowish brown and scutellum brown. Elytra yellow, each elytron with 6 small black rounded spots disposed as follows: spot 1 situated at the humeral callus (touching basal margin); spot 2 resting near 2/5 length of elytral suture, touching the suture; spot 3 situated at disc slightly before half length of elytra; spot 4 on the 2/5 length of elytral margin, diameter of spot 2x its distance to margin; spot 5 on the disc of basal 1/3 of elytra, spot 6 just before sutural apex, almost touching the suture (Figs 113–115). Underside brown, elytral epipleuron and legs yellowish brown.
Body almost circular in outline, hemispherical, shiny and glabrous. Head frontal punctures fine and shallow, 1.0–2.0 diameters apart, with short setae, interocular distance of eyes 0.67x head width (Fig. 113).
Pronotal punctures fine and dense, 1.0–2.0 diameters apart. Elytral punctures fine and sparsely distributed, smaller than those on pronotum, 3.0–4.0 diameters apart. Elytral margins moderately wide, visible from above.
Prosternal punctures inconspicuous, with long sparse setae. Mesoventral surface shiny and shagreened, punctures inconspicuous, with long sparse setae. Metaventral shiny, covered by fine and sparse punctures, with short setae. Elytral epipleuron broad and complete to apex, not foveate to accommodate femoral tips of hind legs. Wings well-developed.
Male genitalia: Penis short, flat and very wide, strongly curved, capsule with small inner process and without outer one, apex strongly narrow and truncate (Fig. 286); tegmen with penis guide distinctly longer than parameres, in lateral view widest, then gradually tapering to apex, apex strongly curved (Fig. 287); penis guide in ventral view symmetrical, very wide and subparallel at basal 7/8, then strongly narrowing to apex, apex nipple-shaped (Fig. 288); parameres slender, almost straight, with sparse setae apically.
Female genitalia: Ovipositor elongate and narrowly triangular, inner margin moderately emarginate at basal half, styli highly reduced, each with several long terminal setae (Fig. 289).
Holotype: 1male, China, Hubei: Banqiao, Shennongjia National Natural Reserve, [31°26.51′N, 110°9.51′E], ca 1650m, 21.vii.2007, Wang XM leg (SCAU). Paratypes (18): Hubei: 6males, 10females, same data as holotype (4males, 8females SCAU, 2males, 2females IOZ); Guizhou: 1female, Taojiang, Rongjiang, [26°16.60′N, 108°4.60′E], ca 1000m, Liang JB leg. (SCAU); Hunan: 1male, Tianpingshan Mountain, Sangzhi, [29°43.02′N, 109°49.14′E], ca 950m, 13.viii.2001, Peng ZQ leg. (SCAU).
Distribution. China: Guizhou, Hubei, Hunan.
Etymology. The specific epithet is formed from the Latin adjective obesus, referring to thick penis.
description: Published as part of Xingmin Wang, Hermes E. Escalona, Shunxiang Ren & Chen Xiaosheng, 2017, Taxonomic review of the ladybird genus Sticholotis from China (Coleoptera: Coccinellidae), pp. 1-72 in Zootaxa 4326 (1) on pages 44-45, DOI: 10.11646/zootaxa.4326.1.1, http://zenodo.org/record/999033