Badister (Badister) obtusus Le Conte 1878

Badister obtusus Le Conte
Badister obtusus Le Conte, 1878:594; [type specimen a female in Le Conte Coll., MCZ No. 5723]. Type locality: Marquette, Michigan, 28.6; (determined from label on type specimen). Lindroth, 1954: 153.
The lack of elytral iridescence and the evident mesh-work formed by the lines of microsculpture are the most obvious characters for separating this species from its North American congeners.
Description of microsculpture. — Microsculpture : on dorsal surface of head and pronotum, approximately isodiametric ; transverse on elytra, but transverse lines far enough apart so that connecting lines between them can be seen, thus forming a mesh work. Dorsal surface of body without a trace of iridescence.
Variation. — Data on variation in the following measurements and ratios are presented in tables 50-57 — length, width, W head/W L elytron, W 1. elytron/L head, L PN/L head, W PN/W head.
The pronotum is as in figure 120.
I have seen three males of this species, and their genitalia were identical (figs. 145a and b).
Distribution. — This species, probably a resident of the Canadian Zone forest, has been collected in eastern Montana, southern Manitoba, northern Michigan, and Quebec.
I have seen five males and sixteen females collected in the following localities. Alberta : Medicine Hat. Colorado : " Col." Manitoba : Aweme, Winnipeg.