Descriptions of eleven Opatrini pupae (Coleoptera, Tenebrionidae) from China

The pupal stage of eleven Opatrini species occuring in the northern China are described and a key for their identifiaction is provided. The species are Scleropatrum horridum horridum Reitter, Gonocephalum reticulatum Motschulsky, Opatrum (Opatrum) subaratum Faldermann, Eumylada potanini (Reitter), E. punctifera (Reitter), Penthicus (Myladion) alashanicus (Reichardt), P. (Myladion) nojonicus (Kaszab), Myladina unguiculina Reitter, Melanesthes (Opatronesthes) rugipennis Reitter, M. (Melanesthes) maxima maxima Ménétriès and M. (Melanesthes) jintaiensis Ren.