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This is a myrmecophilous genus of Staphylinidae with thirteen species. All are inquilines in the nests of Fopmica, Myrmica and occasionally Lasius.

List of Lomechusa and their Host Ants
Genus and species Author and Year Ant Host Distribution Notes
Lomechusa atlantica (Koch, 1937) Lasius flavus, Myrmica Morocco
Lomechusa barbarae (Schilow, 1977 host ant unknown China, Mongolia, Russia
Lomechusa bifoveolata Briscout de Barneville, 1860 Lasius France, Spain
Lomechusa bordonii Hlaváč, 2005 host ant unknown Italy
Lomechusa dvoraki Hlaváč, 2005 Formica cunicularia Tadjikistan
Lomechusa emarginatus Paykull, 1789 Summer host: Formica fusca, Formica cinerea, Formica sanguinea; Winter host: Myrmica scabrinodis, Myrmica laevinodis, Myrmica ruginodis, Myrmica sulcinodis, Myrmica rugulosa, Myrmica rubra, Myrmica schencki Austria, Czech Republic, France, Germany, Serbia, Slovakia, Russia, Sweden, Switzerland, Ukraine
Lomechusa kishimotoi Hlaváč, 2005 Myrmica draco China
Lomechusa malaisei Hlaváč, 2005 host ant unknown Myanmar
Lomechusa paradoxa Gravenhorst, 1806 Summer host: Formica rufibarbis; Winter host: Myrmica ruginodis, Myrmica laevinodis, Myrmica scabrinodis, Myrmica rugulosa, Myrmica rubra Austria, Czech Republic, Germany, Morocco, Slovakia, Russia, Turkey
Lomechusa pubicollis Brisccout, 1860 Summer hosts: Formica rufa, Formica truncicola, Formica pratensis; Winter hosts: Myrmica laevinodis, Myrmica ruginodis, Myrmica sulcinodis, Myrmica rubra Austria, Czech Repbulic, Germany, Slovakia
Lomechusa sinuata (Sharp, 1888) Formica japonica, Myrmica Japan
Lomechusa stangei (Reitter, 1910) Myrmica Uzbekistan
Lomechusa yunnanensis Hlaváč, 2005 Myrmica draco China


  • Hlaváč, P. 2005. Revision of the myrmecophilous genus Lomechusa (Coleoptera : Staphylinidae : Aleocharinae). Sociobiology 46(2): 203-250.