Description of Cerochusa gesinae sp. nov. from Thailand (Coleoptera: Staphylinidae: Pselaphinae) Author Yin, Zi-Wei Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China. E-mail: pselaphinae @ gmail. com pselaphinae@gmail.com Author Kleeberg, Andreas Zum Alten Windmühlenberg 26, D- 12524 Berlin, Germany. E-mail: a. g. kleeberg @ t-online. de a.g.kleeberg@t-online.de text Revue suisse de Zoologie 2020 127 2 377 380 journal article 119480 10.35929/RSZ.0027 84598099-bfd0-4151-a695-84babaa6c20c 0035-418 5743872 Cerochusa Yin & Nomura, 2012 Cerochusa Yin & Nomura in Yin et al ., 2012: 66 . Type species: Cerochusa cilioceps Yin & Nomura (in Yin et al ., 2012: 68 ). Revised diagnosis: Body robust in form, with thick antennae and legs. Head roundly triangular; vertex convex medially, with U-shaped sulcus or impression connecting vertexal foveae; ocular canthi distinct, thick. Pronotum strongly transverse, with large spines at lateral sides, posterolateral corners spinose or angulate; disc with distinct median longitudinal sulcus, discal carinae weakly to strongly indicated, lateral longitudinal sulci present or absent. Elytra broad, transverse, truncate at bases and apices; each elytron with two distinct basal foveae; sutural striae complete, discal striae absent or distinct. Abdomen with tergite 1 (IV) twice length of tergite 2 (V). Tergite 1 (IV) with complete or incomplete inner marginal carinae, outer marginal carinae complete, discal carinae short. Aedeagus with large and round basal capsule; basoventral projection prominent. Composition: The genus contains two species (including the new species described here) distributed in southern China ( Hainan ) and Thailand ( Loei , Nan , Chiang Mai ).