Pasimachus elongatus LeConte is a large (21-28 mm), flightless ground beetle which occurs from Michigan westward to Montana and south to Louisiana and Arizona. A search of major entomological collections and the literature revealed that only a few specimens have actually been collected in Michigan.
Dunn, Gary A.
"New Records of Pasimachus Elongatus in Michigan (Coleoptera: Carabidae: Scaritini),"
The Great Lakes Entomologist: Vol. 14
, Article 9.
Available at: http://scholar.valpo.edu/tgle/vol14/iss4/9