PaleoDB taxon number: 204699
Alternative combinations: Gerris stali, Hygrotrechus stali
Full reference: S. H. Scudder. 1879. Appendix A. The fossil insects collected in 1877, by Mr. G.M. Dawson, in the interior of British Columbia. Geological Survey of Canada, Report of Progress for 1877-1878 175-185
Type specimen: GSC 70, an exoskeleton (body). Its type locality is 3 miles up North Fork of Similkameen River, which is in a Ypresian lacustrine shale/siltstone in the Allenby Formation of Canada.
Average measurements (in mm): body 19.7 x 2.0