Filipinolotis Miyatake, 1994

Lv, Yanqing, Zhang, Xiaoning, Ślipinski, Adam, He, Yurong & Wang, Xingmin, 2018, Contribution to the genus Filipinolotis Miyatake, 1994 (Coleoptera, Coccinellidae, Sticholotidini), ZooKeys 793, pp. 135-142 : 137-138

Filipinolotis Miyatake, 1994

Filipinolotis Miyatake, 1994: 254. Type species: Filipinolotis latefasciata Miyatake, 1994.

Diagnosis.

The genus Filipinolotis can be distinguished from other genera of the tribe Sticholotidini by the following characters: body rounded, glabrous, dorsum strongly convex (Figs 1 a–c, 2 a–c); antennae with 11 antennomeres (Figs 1e, 2e); hind wings atrophied; elytral epipleuron unevenly broadened; abdomen with five ventrites, abdominal postcoxal lines incomplete (Figs 1n, s, 2m).

Description.

Body rounded, dorsum strongly convex and glabrous (Figs 1 a–c, 2 a–c). Head smooth, with sparse short hairs (Figs 1c, 2c). Antennae with 11 antennomeres, scape and pedicel robust, pedicel shorter than scape; flagellum 9-segmented, gradually broadening towards apex, last-three antennomeres forming a fusiform club (Figs 1 d–e, 2 d–e).

Clypeus protruded with anterior margin slightly emarginate at middle (Figs 1c, 2c). Labrum transverse, narrowly rounded and covered with dense, long setae (Figs 1h, 2h). Mandible with two apical teeth, sharp and smooth without additional denticles (Figs 1d, f, 2d, f). Maxillary palp 4-segmented with terminal segment cut obliquely at apex (Figs 1d, g, 2d, g). Labial palpomere 3-segmented, with robust 2ndsegment and slender terminal segment, ligula membranous and plump, insertion of labial palps is anterior on the prementum (Figs 1i, 2i).

Pronotum transverse, strongly convex, emarginate at anterior margin, hind margin bent into a curved shape; lateral margin slightly oblique, with fine groove continuing towards basal corner from anterior corner, anterior angles rounded and smooth, hind angles obtuse and smooth (Figs 1 a–c, 2 a–c). Scutellum minute, triangular (Figs 1a, c; 2a, c). Elytra without humeral angles, strongly convex, almost as wide at anterior margin as hind margin of pronotum, lateral margins extremely narrow; lateral margins with narrow rim, invisible from above (Figs 1 a–c, 2 a–c). Hind wings atrophied.

Prosternum T-shaped. Prosternal process narrowed, less than 0.6 times width of coxal diameter and not prominent anteriorly between coxae, prosternal carinae present and fan-shaped (Figs 1l, 2k). Mesoventrite trapezoid-shaped, coarsely keeled on the anterior edge, metaventrite as long as mesoventrite (Figs 1m, 2l). Elytral epipleuron wide and uneven, gradually narrowed to apex. Legs with pubescence rather dense, coxae square-shaped, obvious robust; trochanter triangular, robust; femora thick, deeply grooved beneath for tibiae when retracted; length of tibia subequal to femur, slender, and widening but not angulate outwardly; tarsi 4-segmented; claws simple and slender, without teeth (Figs 1j, k, 2j). Abdomen with five ventrites in both sexes, ventrite 1 length measured below coxal cavity, almost as long as ventrites 2nd to 4th combined, abdominal postcoxal lines incomplete, not recurved but meeting hind margin of ventrite 1 (Figs 1n, s, 2m).

Male genitalia: tegmen stout, basal piece with distinct strut and additional, dorsal strut-like projection, parameres well developed and setose apically. Penis uniformly tubular, curved (Figs 1 o–r, 2 n–q).

Female genitalia: coxites long triangular with interior margin slightly emarginate, setose apically; styli conspicuous (Figure 1t).

Distribution.

Philippines.

Key to the species of Filipinolotis