Two new species of blind, forest litter-inhabiting ground beetles from the subtribe Anillina (Carabidae: Trechinae: Bembidiini) from eastern U. S. A. Author Sokolov, Igor M. Author Carlton, Christopher E. text Zootaxa 2008 1740 37 44 journal article 10.5281/zenodo.181480 a312fd93-3766-46f6-90d4-7b689ccd3479 1175-5326 181480 Key for identification of Serranillus species This key will allow determination of all known Serranillus species. 1. Smaller, under 1.9mm in length. Head relatively larger relative to pronotum (WH/WPm 0.76–0.78)......... Serranillusdunavani (Jeannel) - Larger, over 2.0mm in length. Head smaller relative to pronotum (WH/WPm 0.72–0.74)........................2 2. Median lobe with gradually narrowing apex with the subacute tip. Beetles from the middle Appalachian Mountains (Virginia)........................................................................ Serranillus septentrionis , new species - Median lobe with subparallel apex with slightly enlarged and rounded tip. Beetles from southern Appalachian Mountains (North Carolina)........................................................................ Serranillus jeanneli Barr