Sticholotis crassa 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 : 41

publication ID	https://doi.org/ 10.11646/zootaxa.4326.1.1
publication LSID	lsid:zoobank.org:pub:A2A72998-86A8-4E77-A2E3-64615Edb2D5F
DOI	https://doi.org/10.5281/zenodo.5309767
persistent identifier	https://treatment.plazi.org/id/03A987ED-FF84-FFC7-BDB6-EF8E5A5BF8E0
treatment provided by	Plazi
scientific name	Sticholotis crassa Wang & Ren
status	sp. nov.

Treatment

Sticholotis crassa Wang & Ren sp. nov.

( Figures 104–106 View FIGURES 101 – 109. 101 – 103 , 270–274 View FIGURES 265 – 274. 265 – 269 , 302 View FIGURE 302 )

Diagnosis. This species is very similar to S. jinpingensis in dorsal color pattern, but can be distinguished as follow: pronotum yellowish brown and elytra yellow ( Figs 104–106 View FIGURES 101 – 109. 101 – 103 ), and penis guide length equal to parameres ( Fig. 272 View FIGURES 265 – 274. 265 – 269 ). In S. jinpingensis , pronotum and elytra yellow ( Figs 98–100 View FIGURES 92 – 100. 92 – 94 ), and penis guide 2x length of parameres ( Fig. 262 View FIGURES 255 – 264. 255 – 259 ).

Description. TL: 2.31–2.54 mm, TW: 2.08–2.34 mm, TH: 1.35–1.42 mm, TL/TW: 1.08–1.11; PL/PW: 0.42– 0.43; EL/EW: 0.87–0.90; HW/TW: 0.37; PW/TW: 0.63.

Head yellowish brown, with mouthparts yellow. Pronotum and scutellum yellowish brown. Elytra predominantly yellow, each elytron with 4 small black rounded spots disposed as follows: spot 1 resting on the humeral callus (touching basal margin); spot 2 resting on 2/5 length of elytral suture (almost touching sutural margin); spot 3 resting on disc slightly posteriad of half length of elytron; spot 4 just before sutural apex ( Figs 104– 106 View FIGURES 101 – 109. 101 – 103 ). Underside yellowish brown, elytral epipleuron and legs yellow.

Body almost circular in outline, hemispherical, shiny and glabrous. Head frontal punctures fine, shallow, without short sparse setae, interocular distance of eyes 0.62x head width ( Fig. 106 View FIGURES 101 – 109. 101 – 103 ).

Pronotal punctures fine and shallow, 1.0–1.5 diameters apart. Elytral punctures fine, smaller than those on pronotum, 2.0–2.5 diameters apart, with a row of large punctures along 2/3 suture. Elytral margins moderately wide, distinctly visible from above.

Prosternal surface slightly shagreened, punctures inconspicuous, with scattered sparse setae. Mesoventral surface shiny, punctures large, 0.7–1.5 diameters apart. Metaventrite covered by coarse and dense punctures distributed at center. Elytral epipleuron broad, complete to apex, moderately foveate to accommodate femoral tips of hind legs. Wings well-developed.

Male genitalia: Penis short and stout, moderately curved at base, capsule inconspicuous, apex rounded ( Fig. 271 View FIGURES 265 – 274. 265 – 269 ); tegmen with penis guide equal to parameres length, in lateral view short and stout, very thick, widest at base, gradually narrowing to apex ( Fig. 272 View FIGURES 265 – 274. 265 – 269 ); penis guide in ventral view stout, widest at base, gradually narrowing to apex ( Fig. 273 View FIGURES 265 – 274. 265 – 269 ); parameres slender, with dense setae apically.

Female genitalia: Ovipositor elongate and narrow triangular, styli inconspicuous, each with sparse long terminal setae ( Fig. 274 View FIGURES 265 – 274. 265 – 269 ).

Holotype: 1male, China, Yunnan: Jiluoshan, Xishuangbanna, [21°58.78′N, 101°7.79′E], ca 1020m, 28.iv.2008, Wang XM leg ( SCAU) GoogleMaps . Paratypes (17): Yunnan: 3males, 10females, same data as holotype (1male, 8females SCAU, 2males, 2females IOZ) GoogleMaps ; 1male, 1female, Dadugang, Puer, [22°22.35′N, 100°56.68′E], ca 950m, 26.iv.2008, Wang XM leg (SCAU); 1male, Menghun, Xishuangbanna, [21°53.95′N, 100°24.16′E], ca 1500m, 4.v.2008, Wang XM leg (SCAU); 1female, Lancang, [22°35.02′N, 99°56.51′E], ca 1300m, 11.v.2008, Wang XM leg (SCAU).

Distribution. China: Yunnan.

Etymology. The specific epithet is formed from the Latin adjective crassa , referring to very thick penis guide in lateral view.