Dyschiriusof America North of Mexico: Descriptions of New Species With Keys to Species Groups and Species (Coleoptera: Carabidae)

The genusDyschiriusincludes 56 North American species which are arranged in 13 species groups. Keys are provided for the species groups and the species. Four new species are described:D.sculptusBousquet (type locality: Pass-a-Grille Beach, Florida);D.ferrugineusBousquet (type locality: Goose Island State Park, Texas);D.larochelleiBousquet (type locality: 6 mi. S Lake Placid, Florida); andD.comatusBousquet (type locality: Highlands Hammock, Florida). Six species names are placed in synonymy for the first time. They are (with the junior synonym listed first):D.arizonicusVan Dyke 1943 =D.interiorFall 1922;D.duplicatesFall 1901 =D.affinisFall 1901;D.desertusFall 1925 =D.perversusFall 1922;D.subpunctatusHatch 1949 =D.sphaericollis(Say 1825);D.basalisLeConte 1857 andD.transmarinusMannerheim 1853 =D.integerLeConte 1851. The adult and larval character states of the genus are listed and comments are provided for each species group.