Most similar to S. scarabaeoides. See Berge Henegouwen (1989).
Range
widely distributed in US and southern Canada, also found in Mexico; native to Palaearctic
Remarks
Introduced species
Print References
Berge Henegouwen, A. van. 1989. Sphaeridium marginatum reinstated as a species distinct from S. bipustulatum (Coleoptera: Hydrophilidae). Entomologische berichten 49: 168-170. Link to PDF
Contributed by Boris Büche on 3 August, 2007 - 3:18am Additional contributions by Beatriz Moisset, mpintar Last updated 19 February, 2022 - 7:54am