Tribasodites Jeannel, 1960

Yin, Zi-Wei, Nomura, Shûhei & Li, Li-Zhen, 2015, Ten new species of cavernicolous Tribasodites from China and Thailand, and a list of East Asian cave-inhabiting Pselaphinae (Coleoptera: Staphylinidae), Acta Entomologica Musei Nationalis Pragae 55 (1), pp. 105-127 : 107

Tribasodites Jeannel, 1960

Tribasodites Jeannel, 1960: 411 .

Type species. Tribasodites antennalis Jeannel, 1960

Diagnosis. Head rectangular; with median longitudinal carina on vertex; lacking frontal rostrum; ocular-mandibular carinae distinct. Pronotum with median and lateral longitudinal sulci, lateral sulci usually carinate at inner margins, disc with additional pair of thin carinae between median and lateral sulci; with median antebasal impression and lateral antebasal foveae separated by antebasal spines; acute small spines often present on lateral margins (lacking in several cavernicolous species). Elytra each with three basal foveae, discal striae extending past half elytral length; subhumeral foveae present, marginal striae from foveae to elytral posterior margin. Abdomen with tergite IV (first visible tergite) longer than the next, inner marginal carinae extending throughout whole length of tergite, outer carinae slightly shorter than inner carinae, extending to near posterior margin of tergite; tergites V–VI each with single thin marginal carina.

Differential diagnosis. The genus Tribasodites can be separated from the allied genus Tribasodes by the lack of a basal depression on the abdominal tergite IV, and by having the sexual character on the frons or the antennomeres VIII–XI in general. On the other hand, Tribasodites can be easily separated from the genus Tribasodellus by the transverse and laterally protuberant and/or spinose pronotum, while Tribasodellus has the pronotum longer than wide, feebly arcuate laterally and lacking spines.