Alternative combination: Lachnus quesneli
Full reference: S. H. Scudder. 1878. Additions to the Insect-fauna of the Tertiary beds at Quesnel, British Columbia. Report of Progress of the Geological Survey of Canada 1876-1877 457-464
Sister taxa: none
Type specimen: 34a, an exoskeleton (pair of wings and crushed body). Its type locality is Quesnel, which is in an Oligocene terrestrial horizon in Canada.
Average measurements (in mm): body length 3.38, forewing length 4.50, wing 5.00 x 1.35