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 310 . Megachetum Rondani , 1856 : 123 . ORIGINALLY INCLUDED SPECIES: Chyliza atriseta Meigen, 1826 (as “ Chiliza Atriseta Meig. ”). TYPE SPECIES : Chyliza atriseta Meigen, 1826 (as “ Chiliza Atriseta Meig. ”) [= Musca extenuata Rossi, 1790 ], by original designation. CURRENT STATUS: Junior synonym of the subgenus Dasyna Robineau-Desvoidy, 1830 (of the genus Chyliza Fallén, 1820 ). New synonymy . FAMILY: PSILIDAE . REMARKS: Soós (1984a: 35) treated Megachetum Rondani, 1856 as a junior synonym of Chyliza Fallén, 1820 . However, the valid name for the type species of Megachetum Rondani, 1856 ( Musca extenuata Rossi, 1790 ) is the same as the valid name for the type species of subgenus Dasyna Robineau-Desvoidy, 1830 , which makes Megachetum Rondani, 1856 a junior synonym of Dasyna Robineau-Desvoidy, 1830 , n . syn .