Platynychus Motschulsky, 1858

Douglas, Hume B., 2017, World reclassification of the Cardiophorinae (Coleoptera, Elateridae), based on phylogenetic analyses of morphological characters, ZooKeys 655, pp. 1-130 : 43

Platynychus Motschulsky, 1858 Figs 74-76

Platynychus Motschulsky, 1858: 58. Type species: Platynychus indicus Motschulsky, 1858: 59.

Diagnosis.

Head. Head with area between antenna fossa and compound eye unsculptured. Prothorax. Pronotum with lateral carina not reaching anterior edge (Fig. 75), hidden in dorsal view by overhanging edge of dorsal part of pronotum (= submarginal line); procoxal cavities closed. Pterothorax. Scutellum with anterior edge sharply emarginate. Legs. Tarsomere 4 without ventral lobe or pad extending beyond base of tarsomere 5; tarsal claws with second point (near base). Also. Bursa copulatrix with paired proximal (largest) sclerites ovoid (Fig. 76); paired distal sclerites (pair farthest from vagina, at base of spermathecal gland duct) present and fused into a “U” shape; base of spermathecal gland duct inside bursa without tube-like sclerotisation. Known from the Russian Far East to Japan, India, and Irian Jaya, 18 spp.