Cynegetis Chevrolat

Wang, Xingmin, Tomaszewska, Wioletta & Ren, Shunxiang, 2014, A new species and first record of the genus Cynegetis Chevrolat (Coleoptera, Coccinellidae, Epilachnini) from China, ZooKeys 448, pp. 37-45 : 39-42

Taxon classification Animalia Coleoptera Coccinellidae

Genus Cynegetis Chevrolat

Cynegetis Chevrolat in Dejean 1837: 461. Type species: Coccinella impunctata Linnaeus, 1767, subsequent designation by Crotch (1874).

Cycnegetis (sic!): Crotch 1874: 90.

Diagnosis.

This genus is most similar to Subcoccinella in general shape of the body and the genitalia of both sexes and sharing interocular distance of more than 0.75 width of head (Figs 1a, 1 l–p, 2a, 2k, 2l, 3a, 3 m–q). Cynegetis , however, can be distinguished from Subcoccinella by the strongly convex body, anterior margin of clypeus distinctly emarginate, subapical teeth and incisor edge of mandible without denticles (Figs 1f, 3e), the terminal maxillary papomere barrel shaped (Figs 1g, 3f), short metaventrite (Fig. 1b), elytral surface covered with double-sized punctures, elytral epipleuron with distinct foveae for apices of mid and hind femora, strongly expanded/inflated outer edges of front tibiae (Figs 1i, 3j), and tarsal claw single, possessing large basal tooth (Fig. 1k, l). In Subcoccinella , the body is moderately convex, anterior margin of clypeus is straight or weakly emarginate, subapical teeth and incisor edge of mandibles are multidentate (Fig. 2e), the terminal maxillary palpomere is elongate and widened apically (Fig. 2c), the metaventrite is relatively long, the elytral surface covered with single-sized punctures, the elytral epipleuron smooth without foveae, outer edges of tibiae of front legs simple (Fig. 2h), and tarsal claws are bifid, lacking basal tooth (Fig. 2j).

Description.

Body shortened oval, strongly convex, dorsum densely pubescent (Figs 1 a–d, 3 a–c). Head with frons slightly convex. Clypeus protruded with anterior margin distinctly emarginate at middle. Labrum transverse, covered with densely distributed, long setae, anterior margin emarginate. Mandible subtriangular in shape, with two apical teeth and two subapical teeth: apical teeth long and large with 4-5 additional denticles; subapical teeth shorter than apical ones, smooth without additional denticles (Figs 1f, 3e). Antennae with 11 antennomeres (Figs 1e, 3d), antennal insertions located posterior to imaginary line joining anterior edges of eyes (Figs 1d, 3c). Maxillary palp with terminal palpomere longer than wide, barrel shaped, truncate at apex (Figs 1g, 3f); lacinia hook-like or simple. Terminal labial palpomere elongate, narrowing anteriorly (Fig. 3g).

Pronotum transverse, widest at base and gradually narrowing anteriorly, anterior and hind margins not bordered, anterior angles distinctly protruded. Scutellum small, triangular. Elytra at base distinctly wider than pronotum, lateral margins very narrow, invisible from above, humeral angles inconspicuous. Prothoracic hypomeron with clearly delimited cavities to accommodate apices of femora of front legs. Prosternum T-shaped, without carinae (Fig. 1b).

Mesoventrite with anterior edge with complete raised border and with weak groove behind it, mesal surface with cavity for receiving prosternal process; meso-metaventral junction broad, forming an almost straight line or slightly emarginated. Metaventrite about as long as abdominal ventrite 1 with incomplete discrimen (Fig. 1b); metaventral postcoxal lines recurved, complete laterally. Elytral surface with double-sized punctures; epipleuron incomplete apically, with distinct foveae for apices of femora of mid and hind legs (Fig. 1b).

Fore and mid trochanters angulate, produced. Fore tibia with single apical spur; mid and hind tibiae with two spurs (Figs 1 i–j, 3 j–k). Mid and hind tibiae on outer edge near apex with oblique carina. Tarsal claws simple with subquadrate tooth at base (Figs 1k, 3l).

Abdomen with six ventrites in males and five ventrites in females; abdominal postcoxal lines recurved roundly, almost complete (Figs 1h, 3i).

Male genitalia. Tegmen stout, penis guide wide and flat in ventral view, parameres straight with densely distributed setae apically (Figs 1 n–o, 3 o–p). Penis stout, curved; basal capsule expanded, but not typically T-shaped; apex bifid or not (Figs 1 l–m, 3 m–n).

Female genitalia. Coxites oval, setose apically; styli present or absent. (Figs 1p, 3q). Spermatheca small, curved weakly sclerotized (Fig. 1p).

Distribution.

China: Ningxia; Europe (Austria, Belgium, Bosnia and Herzegovina, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Norway, Poland, Romania, Slovakia, Spain, Sweden, Switzerland, West Russia); Asia: Asian part of Russia (Maritime Prov.), Iran, N. Korea, Syria, Turkey.

Key to the species of Cynegetis