Came to U.V. Light trap. This M. buchanani is definitely a female, the specimen does not display any of the adhesive setae underneath on the ventral view of the protarsomere 1, 2, or 3 (“seriate” type") that are seen the males*. The protarsomeres segments can also be expanded slightly in the males as well. *Illustrated Identification Guide to Adults and Larvae of Northeastern North American
Ground Beetles by Y. Bousquet (2010).
male with adhesive setae underneath..