Pasimachus obsoletus Pasimachus acuminatus Pasimachus vestigialis Pasimachus atronitens Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico Bousquet, Yves ZooKeys 2012 2012-11-28 245 1 1722 4DVN2 538609 F0DF6ACC-DE71-54D8-F430-F115EA00BE8B LeConte, 1846 LeConte 1846 Insecta Carabidae Pasimachus GBIF,CoL Animalia Pasimachus obsoletus Coleoptera 272 273 Arthropoda species obsoletus   Pasimachus obsoletusLeConte, 1846a: 148. Type locality: "ad flumen Platte, prope Rocky Mountains" (original citation). Three syntypes in MCZ [# 5462].  Pasimachus acuminatusCasey, 1913: 88. Type locality: "probably Colorado" (original citation). Holotype [by monotypy] in USNM [# 46889]. Synonymy established by Leng (1920: 47).  Pasimachus vestigialisCasey, 1913: 89. Type locality: "New Mexico; El Paso and Marfa, Texas" (original citation). Three syntypes in USNM [# 46891]. Synonymy established by Leng (1920: 47).  Pasimachus atronitensCasey, 1913: 89. Type locality: "San Bernardino Ranch and Douglas, Cochise Co[unty], Arizona" (original citation). Six syntypes [6 originally cited] in USNM [# 46892]. Synonymy established by Leng (1920: 47) .  Distribution. This species is found from "Iowa"( Baenninger1950: 492) to southeastern Wyoming (Laramie County, CMNH), south to southeastern Arizona (Casey 1913: 89, as  Pasimachus atronitens) and Chihuahua in northern Mexico ( Baenninger1950: 492).  Records.  USA: AZ, CO, IA, KS, NE, NM, OK, SD, TX, WY - Mexico  Note.  Baenninger(1950: 510) retained  Pasimachus atronitensand  Pasimachus acuminatusas questionable subspecies of  Pasimachus obsoletus. Erwin (2011b: 51) treated  Pasimachus atronitensas a valid species.