Catops alsiosus is a species of small carrion beetle in the family Leiodidae. It is found in Europe and Northern Asia (excluding China) and North America.[1][2][3]
Peck, Stewart B.; Cook, Joyce (2002). "Systematics, distributions, and bionomics of the small carrion beetles (Coleoptera: Leiodidae: Cholevinae: Cholevini) of North America". The Canadian Entomologist. 134 (6): 723–787. doi:10.4039/Ent134723-6.