Belongs within: Euplectini.
Asymoplectus is an African genus of pselaphine beetles with a quadrangular prothorax (Raffray 1903).
Characters (Raffray 1903): Palps with last article much larger than preceding. Prothorax square, with rounded or orbicular angles, with or without discoidal pit. Three basal pits on the elytra, but no dorsal stria. Prosternum not keeled. Mesocoxae contiguous, processes of meso- and metasternum reduced to very thin blades hidden by coxae. Metacoxae contiguous. Abdomen with first and second tergites subequal; third and fourth tergites larger than others; last tergites sloping; first sternite small, more or less keeled between metacoxae; second sternite equal to next.
<==Asymoplectus Raffray 1897R03
|--A. antennatus (Raffray 1882) [=Euplectus antennatus]R03
|--A. aterrimus Raffray 1897R03
|--A. atratus Raffrray 1897R03
|--A. caviventris Raffray 1897R03
|--A. discicollis (Raffray 1887) [=Bibloplectus discicollis]R03
|--A. fissus Raffray 1901R03
|--A. flagellatus Raffray 1903R03
|--A. irregularis Raffray 1897R03
|--A. luctuosus Raffray 1897R03
`--A. semipunctatus Raffray 1901R03
*Type species of generic name indicated
References
[R03] Raffray, A. 1903. Genera et catalogue des psélaphides. Annales de la Société Entomologique de France 72: 484–604.