Insecta - Coleoptera - Hydrophilidae

Full reference: M. Fikacek, A. Prokin, R. B. Angus, A. Ponomarenko, Y. L. Yue, D. Ren, and J. Prokop. 2012. Revision of Mesozoic fossils of the helophorid lineage of the superfamily Hydrophiloidea (Coleoptera: Polyphaga). Acta Entomologica Musei Nationalis Pragae 52:89-127

Belongs to Helophorus (Mesosperchus) according to M. Fikacek et al. 2012

Sister taxa: Helophorus (Mesosperchus) gracilis, Helophorus (Mesosperchus) inceptivus, Helophorus (Mesosperchus) tarsalis

Type specimen: CNU-COL-LB2010004, an exoskeleton. Its type locality is Huangbanjigou, Chaomidian Village, CNU 2010 collection, which is in a Barremian lacustrine - large mudstone in the Yixian Formation of China.

Ecology:

Average measurements (in mm): body 5.61 x 2.61, elytron length 3.71