Sticholotis carinica (Gorham)

Tomaszewska, Wioletta & Łączyński, Piotr, 2010, A contribution to Sticholotis Crotch from Myanmar (Coleoptera: Coccinellidae: Sticholotidini), Zootaxa 2658 (1), pp. 51-68 : 57

Sticholotis carinica (Gorham)

( Figs. 5 , 19–26 , 68–71)

Orcus carinicus Gorham, 1895: 688 .

Sticholotis carinica: Łączyṅski & Tomaszewska, 2009: 609 .

Diagnosis. S. carinica is similar to S. discoidea by coloration of the dorsum but can be differentiated in having larger and more convex body, the elytral suture black throughout its length and the elytra more coarsely punctate.

Redescription. Female. Length 3.1 mm; TL/EW = 1.1; PL/PW = 0.45; EL/EW = 0.95; GD/TL = 0.65.

Body ( Figs. 5 , 19, 23 ) rounded, strongly convex; pronotal margins very narrow, hardly visible from above; elytral margins narrow, entirely visible from above. Head brownish black; labrum, mouthparts and antennae yellowish brown. Pronotum and scutellum black. Elytra with disk chestnut brown and suture and margins black. Punctures on pronotum 1–2 diameters apart, moderately coarse and deep; punctures on elytra finer and shallower than on pronotum, 2–3 diameters apart; surfaces between elytral and pronotal punctures finely reticulate and shiny; dorsum apparently glabrous. Ventral surface blackish brown with legs dark yellowish brown and abdomen (except for intercoxal process of ventrite I) dark chestnut brown; elytral epipleuron dark chestnut brown along inner half of its width.

Head ( Figs. 20, 25 ) flat medially, punctate, with sparse, short setae, densest near clypeus. Clypeus weakly arcuate anteriorly, weakly reflexed along anterior margin. Eyes rather large, moderately and coarsely faceted, dorsally separated by nearly 4 times eye width; interocular distance about 0.7 times head width; inner margins of eyes slightly sinuate, convergent anteriorly. Maxillary terminal palpomere more than 2 times longer than wide, scarcely tapering along basal 2/3 length, strongly and obliquely truncate apically; labial terminal palpomere narrowed and acuminate. Antenna 11-segmented with narrow 3-segmented club.

Prothorax ( Figs. 22, 25 ) about 0.9 times basal width of elytra; pronotum with groove along most of basal margin, distinctly disappearing before reaching hind angles; pronotal hypomeron and prosternum smooth; anterior lobe of prosternum distinctly bordered with anterior edge straight medially; prosternal process ( Fig. 24 ) subtruncate apically, without distinct lateral carinae, deeply and coarsely punctate, and distinctly setose. Mesoventral intercoxal process ( Fig. 21 ) about 1.4 times mesocoxal diameter. Metaventrite with complete discrimen, moderately coarsely punctate; postcoxal lines straight laterally, complete. Elytral epipleuron ( Fig. 21 ) with maximum width at metaventrite, narrowing posteriorly but complete to apex, without distinct foveae. Wings well-developed.

Abdomen ( Figs. 26 , 68) with 5 ventrites; ventrite I along mid line more than 3.5 times longer than ventrite II; postcoxal line of first ventrite curved posteriorly and laterally, nearly touching posterior margin, incomplete laterally; postcoxal disk microreticulate and sparsely punctate (Fig. 69); ventrite V triangularly produced posteriorly. Female abdominal segment VIII with sternite and tergite rounded (Fig. 70).

Female genitalia as in Fig. 71. Proctiger (T10) reduced. Ovipositor sclerotized, coxites elongate, entirely separated; spermatheca not observed.

Male not known.

Material examined. Types. Holotype, female: “Carin Cheba, 900-1100 m., L. Fea V-XII-88/ Gorham type/ Typus/ carinicus Gorh. / Orcus carinicus Gor / O. carinicus Gorh. Typus!/ Holotypus, Orcus carinicus, Gorham, 1895 / Museo Civico di Genova ” ( MCSN).

Figures

FIGURES 1–5. Habitus, dorsal view; 1) Sticholotis bipunctata (Gorham); 2) Sticholotis quadriguttata (Gorham); 3) Sticholotis discoidea (Gorham); 4) Sticholotis dohrni Weise; 5) Sticholotis carinica (Gorham).

FIGURES 19–26. Sticholotis carinica (Gorham); 19) body, dorsal view; 20) head, antero-ventral; 21) body, ventral view; 22) prothorax-elytron connection; 23) body, lateral; 24) prosternal process; 25) head, prothorax and base of elytra, antero-dorsal; 26) abdomen, ventral.