NO. 1719. TYPE-SPECIES OF AMERICAN DIPTERA—COQUILLETT. 621 



[Xiphandrium Loew, Neue Beitr., vol. 5, p. 36, 1857. 9 species. Type, Rhaphium 

 quadrijilum. Loew, the first species, by present designation. Equals Rhaphium 

 Meigen, 1803. Not American.] 



Xiphidicera Macquart, Hist. Nat., Dipt., vol. 1, p. 356, 1834. 1 species. Type, 

 Xiphidicera rufipes Macquart. Equals CEdalea Meigen, 1820. 



Xiphura Briille, Ann. Soc. Ent. France for 1832, p. 206, 1832. 1 species (as 2). 

 Type, TipnJa atrata Linn.eus. Ec^uals Flabellifera Meigen, 1800. 



Xylocriipta Kieffer, Bull. Soc. Ent. France for 1S99, p. 69, 1899. 1 species. Type, 

 Ceratopogon fasclata MeKtEN. Equals Sphaeromias Curtis, 1829. 



Xylomya Rondani, Dipt. Ital. Prodr., vol. 4, p. 11, 1861. Change of name for Suhula 

 INIiegen, 1820, not of Schumacher, 1817. Type, Xylophagns maculalus^ Meigen. 

 Equals Solva Walker, 1860. 



Xylophagus Meigen, lUiger's Mag., vol. 2, p. 266, 1803. 1 species. Type, Nemotdus 

 cbictus De Geer. Equals Erinna Meigen, 1800. 



Xylota Meigen, Syst. Beschr. Zweifl. Ins., vol. 3, p. 211, 1822. 16 species. Type, 

 Musca segnis Linn^us, the ninth species, by designation of Curtis, Brit. Ent., 1832, p. 

 409. Equals Zelima Meigen, 1800. 



Xylotachina Brauer and Bercjenstamm, Denkschr. Kais. Akad. Wiss. AVien, vol. 58, 

 p. 342, 1891. 1 species. Type, Xylotachina ligniperd<r Brauer and Bergenstamm. 

 Equals Sturmia Desvoidy, 1830. 



Xylotu'ja Eondani, Nuovi Ann. Sci. Nat. ( Bologna) for 1844, p. 457, 1844. 1 species. 

 Type, Syrphns varus Panze:;. Equals Myolepta Newman, 18.38. 



Yetodesia Rondani, Dipt. Ital. Prodr., vol. 4, p. 9, 1861. Change of name for Aricia 

 Desvoidy, 1830, not of Savigny, 1817. Type, Musca impuvcta Fallen. Equals 

 Mydaea Desvoidy, 1830. ( Yetodesia of authors equals Phaonia Desvoidy.) 



Youngomyia Felt, 2.3d Rep. State Ent. N. Y., p. 398, 1908. 2 species. Type, 

 Dicrodiplosis podopJiylhc Felt, the first species, by original designation. 



Yposatari Rondani. Dipt. Ital. Prodr., vol. 1, p. 198, 1856. No species. Genus 

 formed of Lestremia Macquart, Zygoneura Meigen, and Jfimo-sCTara Rondani. Type, 

 Mimosciara molobrlna Rondani (the type of Mimosclara), by present designation. 

 Equals Lestremia Macquart, 1826. 



Zabrachia Coquillett, Bull. 47, N. Y. State Mus., p. 585, 1901. 1 species. Type, 

 Zabrachia polita Coijuillett. 



Zacompsia Coquillett, F]nt. News., vol. 12, p. 15, 1901. 1 species. Type, Zacomp- 

 sia fiiJra Coquillett. 



Zagonia Coquillett, Invert. Pacif., vol. 1, p. 27, 1904. 1 species. Type, Zagonia 

 fara Coquillett. Syn., Sillgo Aldrich, 1908. 



Zaphne Desvoidy, Essai Myod., p. 527, 1830. 1 species (as 2). Type, Anthomyia 

 divisa Meigen. 



Zelia Desvoidy,- Essai Myod., p. 314, 1830. 5 species. Type, Dexia rertebrafa Say 

 (as rostrata, new species), the first species, by present designation. 



Zelima Meigen, Nouv. Class. Mouches, p. 34, 1800.* No species. Eumeros Meigen, 

 1803, is a change of name. Type, Musca segnis Linn^us. Syn., Eumeros Meigen, 

 1803; Ileliophihis Meigen, 1803; Xylota Meigen, 1822; Micraptoiua WssTwoon, 1840. 



Zelinda Desvoidy, Hist. Nat. Dipt., vol. 1, p. 485, 1863. 1 species. Type, 3rHSca 

 Vbatrix Panzer (as aurulenta, new species). Equals Zenilla Desvoidy, 1830. 



Zelleria Desvoidy, Hist. Nat. Dipt., vol. 1, p. 985, 1863. 1 species (as 19). Type, 

 Tachina simulans Meigen. Equals Exorista Meigen, 1803. 



Zelmira Meigen, Nouv. Class. Mouches, p. 16, 1800.* No species. Platyura Mei- 

 gen, 1803, is a change of name. Type, Platyura fasdata Meigen. Syn., Platyura 

 Meigen, 1803. 



Zenillia Desvoidy, Essai Myod., p. 152, 1830. 2 species (as 3). Type, Musca liha- 

 trix Panzer, the second species, by designation of Desvoidy, Hist. Nat. Dipt., vol. 1, 

 1863, p. 471. Syn., Nilea Desvoidy, 1863; Atilia Desvoidy, 1863; Clemelis Desvoidy, 



