3141 Author O’Hara, James E. Author Cerretti, Pierfilippo Author Pape, Thomas Author Evenhuis, Neal L. text Zootaxa 2011 2011-12-23 3141 1 268 journal article 1175­5334 379 . Omalostoma Rondani , 1862d : 58 . ORIGINALLY INCLUDED SPECIES: Omalostoma fortis Rondani, 1862 ; Omalostoma robusta Rondani, 1862 . TYPE SPECIES : Omalostoma fortis Rondani, 1862 , by subsequent designation ( Townsend, 1916: 8 ) . CURRENT STATUS: Junior synonym of Billaea Robineau-Desvoidy, 1830 [ teste Herting & Dely-Draskovits (1993: 357) ]. FAMILY: TACHINIDAE . REMARKS: Herting & Dely-Draskovits (1993: 357) indicated the method of typification for Omalostoma Rondani, 1862 as by monotypy, but this is incorrect because there are two included species. Townsend (1916: 8) is the earliest subsequent designation. Verrall in Scudder (1882: 165) listed the spelling Homalostoma and this was cited as an emendation by Bezzi & Stein (1907: 440 , “ em . Scudd.”), but criteria for making this name available as an emendation were not found to be fulfilled in Scudder (1882) . Homalostoma Verrall, 1882 is thus an unavailable name, new status . EMENDATIONS: Homalostoma Bezzi & Stein, 1907: 440 (unjustified), n . syn .