B. pernotum Casey, 1918

Bembidion pernotum Casey, 1918: 62 . Type locality Jemez Springs, New Mexico. Lectotype female, designated by Erwin (1984), in USNM (type number 36922), examined.

This species is known from northern New Mexico and southern Colorado. Individuals are colored similarly to B. transversale, but are brighter and more reddish, and are more convex and shinier than other members of the group, with larger punctures in the elytral striae, and more convex intervals. While their color pattern is similar to members of the B. transversale group, male genitalia and DNA sequences indicate a much closer relationship to B. mexicanum and B. lugubre .