Sticholotis robusta 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 robusta

description: Sticholotis robusta Wang & Ren sp. nov.
(Figures 116–118, 290–294, 303)
Diagnosis. This species is close to S. obesa in same dorsal color pattern, but can be distinguished from the latter by distinctly different male genitalia (Figs 286–288, 291–293).
This species is also similar to S. maolanensis in male genitalia, but can be distinguished from the latter as follows: elytra with 12 small black spots (Fig. 116), and penis guide longer than paramere (Fig. 292). In S. maolanensis, elytra with 4 large black spots (Fig. 74), and penis guide slightly shorter than paramere (Figs 224).
Description. TL: 2.47–3.07 mm, TW: 2.21–2.84 mm, TH: 1.25–1.68 mm, TL/TW: 1.08–1.12; PL/PW: 0.40– 0.42; EL/EW: 0.84–0.90; HW/TW: 0.33; PW/TW: 0.60.
Head yellowish brown, with mouthparts yellow. Pronotum yellowish brown, scutellum dark brown. Elytra yellowish brown, each elytron with 6 moderately large, black rounded spots disposed as follows: one resting on the humeral callus (touching basal margin); one resting on disc slightly posteriad of half length of elytron; two resting on 2/5 and 4/5 lateral margin (not touching margin, the diameter of the spot equal to its distance from margin), one resting on 2/5 length of elytral suture (almost touching suture); one just before sutural apex (Figs 116–118). Underside yellow, except meso- and metaventrite yellowish brown.
Body almost circular in outline, hemispherical, shiny and glabrous. Head frontal punctures fine and shallow, with short sparse setae, interocular distance of eyes 0.64x head width (Fig. 118).
Pronotal punctures fine and dense, 1.0–2.0 diameters apart. Elytral punctures very fine and sparse, distinctly smaller than those on pronotum, 2.0–5.0 diameters apart, with a row of large punctures along the suture. Elytral margins moderately explanate, entirely visible from above.
Prosternal surface mat and shagreened, punctures inconspicuous. Mesoventral surface shining, punctures fine, shallow. Metaventrite covered by coarse and dense punctures distributed. Elytral epipleuron broad, complete to apex, feebly foveate to accommodate femoral tips of hind legs. Wings well-developed.
Male genitalia: Penis short and stout, strongly curved at base, capsule inconspicuous, apex slightly membranous and strongly curved (Fig. 291); tegmen with penis guide distinctly longer than parameres, in lateral view stout, widest at base, gradually narrowing to apex (Fig. 292); penis guide in ventral view subparallel along its 6/7 length, then strongly narrowed, apex finger-shape (Fig. 293); parameres very slender, almost straight, with short sparse setae apically.
Female genitalia: Ovipositor elongate and narrowly triangular, styli inconspicuous (Fig. 294).
Holotype: 1male, China, Guizhou: Xianheping Natural Reserve, Anlong, [24°58.66′N, 105°36.45′E], ca 1500m, 12.ix.2007, Wang XM leg. (SCAU). Paratypes (11): 5males, 7females, same data as holotype (3males, 5females SCAU, 2males, 2females IOZ); 1male, 3females, Wudong & Maoming, Leigongshan National Natural Reserve, [26°23.93′N, 108°14.12′E], ca 1500m, 6.x.2008, Liang JB et al. leg. (SCAU).
Distribution. China: Guizhou.
Etymology. The specific epithet is formed from the Latin adjective robustus, referring to stout 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 page 69, DOI: 10.11646/zootaxa.4326.1.1, http://zenodo.org/record/999033