Bethylus Latreille 1802

GenusBethylusLatreille, 1802 Bethylus Latreille, 1802: 315. Type species: Omalus fuscicornis Jurine, 1807. Anoxus Thomson, 1862: 451. Type species: Anoxus boops Thomson, 1862. Anoxys Dalla Torre, 1898: 550. Unjustified emendation to Anoxus by Dalla Torre (1898). Perisemus Förster, 1856: 95. Type species: Bethylus triareolatus Förster, 1856. Episemus Thomson, 1862: 452. Type species: Epysemus variabilis Thomson, 1862 [1861]. Digoniozus Kieffer, 1905: 245. Type species: Perisemus oregonensis Ashmead, 1893. Diagnosis. Palpal formula 5: 2; clypeus short and not strongly angulated medially; antenna with 12 antennomeres; notauli absent parapsidal signum present; anteromesoscutum short; metapectal-propodeal complex with lateral carina present, metapostnotal median carina absent; prosternum large, diamond-shaped; hypopygium with posterior bilobate; parameres double, completely divided into dorsal and ventral arms (Azevedo et al. 2018).