Phyllis Robineau-Desvoidy, 1830: 603

Evenhuis, Neal L., O’Hara, James E., Pape, Thomas & Pont, Adrian C., 2010, 2373, Zootaxa 2373, pp. 1-265 : 137

440. Phyllis Robineau-Desvoidy, 1830: 603 .

ORIGINALLY INCLUDED SPECIES: Phyllis flava Robineau-Desvoidy, 1830 ; Phyllis plumosula Robineau- Desvoidy, 1830; Phyllis rohrelliformis Robineau-Desvoidy, 1830 ; Phyllis brunea Robineau-Desvoidy, 1830 .

TYPE SPECIES: Phyllis flava Robineau-Desvoidy, 1830 [= Anthomyia diaphana Wiedemann, 1817 ], by subsequent designation ( Coquillett, 1901: 140).

CURRENT STATUS: Nomen oblitum; senior synonym of Thricops Rondani, 1856 (nomen protectum), but here treated as a nomen oblitum through the ICZN Code principle of the Reversal of Precedence [teste this work].

FAMILY: MUSCIDAE .

REMARKS: Griffiths (1982: 8) and Dely-Draskovits (1993: 77) incorrectly considered the type species as Phyllis brunea Robineau-Desvoidy, 1830 [by subsequent designation of Hennig (1962a: 630)], which is currently treated in the genus Pegomya Robineau-Desvoidy, 1830 [ Anthomyiidae ]. Coquillett’s (1901) designation of Phyllis flava is earlier, but this designation has been overlooked by recent workers on the Muscidae ( Hennig, 1962a; Huckett, 1965b; Pont, 1986b; Gregor et al., 2002; Savage, 2003). Since Phyllis flava is now treated as a junior synonym of Anthomyia diaphana Wiedemann, 1817 (now in Thricops ), the name Phyllis is an older generic name for Thricops Rondani, 1856 . However, whereas Phyllis has not been used as a valid name for a taxon since 1830, Thricops is in prevailing usage as the valid name for a group of flies that is speciose, widespread and frequently abundant in the temperate Holarctic Region. Thricops has appeared as the valid name in at least 25 works by well over 10 authors, published during the past 50 years, including the following: Chandler (1998); Gregor (1988, 1997, 2004); Gregor & Rozkošný (2007); Gregor et al. (2002); Hennig (1962, 1965); Hofmans (1991); Huckett et al. (1987); Kozuharova et al. (2006); Papp (2001); Pont (1971, 1975, 1986, 1993, 1995); Pont & Ackland (1995); Pont & Horsfield (1992); Pont & Merz (1998); Prijs (2002); Sabrosky (1999); Savage (2003); Savage & Wheeler (2004); Savage et al. (2004); Skidmore (1985); Teschner (1999); Xue & Chao (1998); Zimin & El’berg (1970). In the interests of nomenclatural stability, we hereby invoke reversal of precedence (ICZN Code Article 23.9.2) and declare Phyllis Robineau-Desvoidy, 1830 a nomen oblitum and Thricops Rondani, 1856 a nomen protectum.