Cephennodes impressifrons species group

Species that belong in this group share a similar shape of the aedeagus, which represents a variant of the simonis form. The median lobe is strikingly large and slightly or moderately asymmetrical, not drop-shaped but rather oval, with the ventral membranous area small and concealed by the ventral aedeagal wall; the parameres are asymmetrical but in ventral view only a short apical portion of the right paramere is bent or curved; the apical projections are short and with the ventral hook; the subapical area of the dorsal wall bears tiny setae. The head of males is always modified, with carinae and/or impressions. This group comprises currently ten species: C. impressifrons Jałoszyński, 2007 (China), C. carinifrons Jałoszyński, 2007 (China), C. triangulifrons Jałoszyński, 2007 (China), C. pteroscapus Jałoszyński, 2007 (China), C. rhinoceros Jałoszyński & Nomura, 2008 (Thailand), C. frontocarinatus Jałoszyński & Nomura, 2008 (Thailand), C. nasalis Jałoszyński & Nomura, 2009 (Vietnam), C. depressifrons Jałoszyński & Nomura, 2009 (Vietnam), C. huapingensis Jałoszyński, 2015 (China) and C. elevatus Jałoszyński, 2015 (China) . A new record of one species is given below.