First report of subfamily Scydmaeninae (Coleoptera, Staphylinidae) from Shanghai, with description of two new species

The subfamily Scydmaeninae (Coleoptera: Staphylinidae) is reported from Shanghai, China for the first time. Three species of the genus <i>Euconnus</i> Thomson were recognized: <i>E.</i> (<i>s. str.</i>) <i>dulcis</i> Sharp, 1886, <i>E.(s. str.)imparitus</i> <b>sp. nov.</b> (type locality: Waigang Town, Jiading District), and <i>E.(s. str.)magnoculus</i> <b>sp. nov.</b> (type locality: Shanghai Zoo, Hongqiao District). The new species are described, and diagnoses and illustrations of the habitus and important diagnostic features for all taxa are provided for ready identification. Furthermore, <i>Euconnuscerastiventris</i> Vit, 2006, <b>syn. nov.</b> is placed as a junior synonym of <i>E.dulcis</i>. A key to <i>Euconnus</i> species that occur in Shanghai is provided.