Sticholotis obesa 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 : 44-45

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.5309775
persistent identifier	https://treatment.plazi.org/id/03A987ED-FF87-FFC3-BDB6-ED865E46FE6B
treatment provided by	Plazi
scientific name	Sticholotis obesa Wang & Ren
status	sp. nov.

Treatment

Sticholotis obesa Wang & Ren sp. nov.

( Figures 113–115 View FIGURES 110 – 118. 110 – 112 , 285–289 View FIGURES 285 – 294. 285 – 289 , 303 View FIGURE 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 View FIGURES 110 – 118. 110 – 112 ), and strongly curved apex of penis guide ( Fig. 287 View FIGURES 285 – 294. 285 – 289 ). In S. latissima , elytra have four large black spots ( Fig. 71 View FIGURES 65 – 73. 65 – 67 ) and apex of penis guide is not curved ( Fig. 219 View FIGURES 217 – 226. 217 – 221 ).

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 View FIGURES 110 – 118. 110 – 112 ). 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 View FIGURES 110 – 118. 110 – 112 ).

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 View FIGURES 285 – 294. 285 – 289 ); tegmen with penis guide distinctly longer than parameres, in lateral view widest, then gradually tapering to apex, apex strongly curved ( Fig. 287 View FIGURES 285 – 294. 285 – 289 ); penis guide in ventral view symmetrical, very wide and subparallel at basal 7/8, then strongly narrowing to apex, apex nipple-shaped ( Fig. 288 View FIGURES 285 – 294. 285 – 289 ); 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 View FIGURES 285 – 294. 285 – 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) GoogleMaps . Paratypes (18): Hubei: 6males, 10females, same data as holotype (4males, 8females SCAU, 2males, 2females IOZ) GoogleMaps ; Guizhou: 1female, Taojiang, Rongjiang, [26°16.60′N, 108°4.60′E], ca 1000m, Liang JB leg. ( SCAU) GoogleMaps ; Hunan: 1male, Tianpingshan Mountain, Sangzhi , [29°43.02′N, 109°49.14′E], ca 950m, 13.viii.2001, Peng ZQ leg. ( SCAU) GoogleMaps .