Piezura graminicola ( Zetterstedt, 1846 )

Wang, Ming-Fu, Zhang, Dong & Ao, Hu, 2010, Phylogeny and biogeography of the genus Piezura Rondani (Diptera: Fanniidae), Zootaxa 2412, pp. 53-62 : 58-59

Piezura graminicola ( Zetterstedt, 1846)

Figs. 5–7.

Anthomyza graminicola Zetterstedt, 1845: 1361 . Nomen nudum.

Anthomyza graminicola Zetterstedt, 1846: 1747 .

Mycophaga boletorum Rondani, 1866: 188 .

Piezura boletorum (Rondani) : Pont, 1986: 43; Xue & Wang, 1998: 811.

Platycoenosia mikii Strobl, 1894: 72 ; Hennig, 1955: 16; Chillcott, 1961: 227; Huckett, 1965: 898.

Choristomma pokornyi Stein, 1895: 138 .

Coenosia externa Pandellé, 1899: 152 .

Syllegopterula flava Hsue [= Xue], 1983: 459. New synonymy.

Thricops flavidus Xue in Xue & Chao, 1998: 917. New name for Syllegopterula flava Hsue, 1983 , which was a junior secondary homonym of Phyllis flava Robineau-Desvoidy, 1830 [= Thricops diaphanus (Wiedemann, 1817) ] when both nominal species were in the genus Thricops . New synonymy.

Piezura graminicola (Zetterstedt) : Pont, 2002: 107; Moores & Savage, 2005: 56 .

Remarks: Hsue (1983) described a new species, Syllegopterula flava , from Liaoning, China. Later, the genus Syllegopterula Pokorny, 1893 was regarded as a junior synonym of Thricops Rondani, 1856 . For Thricops flava (Hsue) , which is a homonym of Thricops flava (Robineau-Desvoidy) [junior synonym of Thricops diaphanus (Wiedemann, 1817) ] when in that genus, a new name was proposed. Xue (in Xue & Chao 1998) replaced Thricops flava (Hsue) with Thricops flavidus Xue. Savage (2003: 139) wrote, “Since submission of this manuscript, Dr. Fan Zi-de has expressed his intentions to transfer Thricops flavidus Xue to the genus Piezura (Fanniidae) (letter to A.C. Pont of 12 October 2002)”. While reexamining the holotype of Thricops flavidus , we found this species does indeed belong in the genus Piezura in the Fanniidae . After comparing the type with specimens of Piezura graminicola from Shanxi and Heilongjiang, we have concluded it is conspecific with them. Since the species is transferred out of Thricops to Piezura , there is no longer any secondary homonymy and the original name Syllegopterula flava is therefore restored. Thricops flavidus Xue, 1998 and Syllegopterula flava Hsue, 1983 are considered new synonyms of Piezura graminicola ( Zetterstedt, 1846) .

Specimens examined: 1 male, China: Shanxi: Yuxian: Mt. Zangshan , 22.vi.1999, Coll. M.F. Wang ; 1 male (holotype of Syllegopterula flava Hsue ), China: Liaoning: Benxi: Huanren County: Juhugou , 17.vi.1973, Coll. W.Q. Xue ; 1 male, China: Heilongjiang: Jingpo Lake , 28.vi.1985, Coll. C.Y. Cui.

Distribution: China (Shanxi, Liaoning and Heilongjiang); Japan, Canada (Ontario, Quebec), common throughout Europe and USA.