

I- 



620 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 37. 



J Willistoniella Mik, Wien. Ent. Zeit., vol. 14, p. 136, 1895. Change of name for 

 Rhopalornyia Williston, 1895, not of Rubsaamen, 1892. Type, Ropalomera pleuro- 

 punctata Wiedemann. Syn., Rhopalornyia Williston, 1895, preoccupied. 



u Winnertzia Rondani, Atti Soc. Ital. Sci. Nat. Milano, vol. 2, p. 287, 1860. 1 

 species. Type, Asynapta lugubris Winnertz. 



u Winthemia Desvoidy, Essai Myod., p. 173, 1830. 3 species (as 8). Type, Musca 

 quadripustulata Fabricius (as species 2 to 4 and 6 to 8), by designation of Desvoidy, 

 Hist, Nat. Dipt., vol. 1, 1863, p. 207. Syn., Dorbina Desvoidy, 1847; Masipoda 

 Brauer and Bergenstamm, 1889; Catagonia Brauer and Bergenstamm, 1891. 



• Wohlfahrtia Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 56, 

 p. 123, 1889. 2 species. Type, Sarcophila magnifica Schiner, the first species, by 

 designation of Brauer and Bergenstamm, Verh. Zool.-Bot. Ges. Wien, vol. 43, 

 1893, p. 501. Equals Sarcophila Rondani, 1856. 



Wulpia Brauer aud Bergenstamm. Denkschr. Kais. Akad. Wiss. Wien, vol. 60, p. 

 128,1893. 1 species. Type, Wulpia aperta Brauer and Bergenstamm. Not Wulpia 

 Bigot, 1886. Equals Vanderwulpia Townsend, 1891. 



V Wyeomyia Theobald, Journ. Trop. Med., vol. 4, p. 235, July 15, 1901. No species. 

 In his Monogr. Culic, vol. 2, November 23, 1901, p. 268, 6 species. Type, Wyeomyia 

 grayii Theobald, the first species, by designation of Neveu-Lemaire, Mem. Soc. 

 Zool. France, vol. 15, 1902, p. 223. 



J Xanionotum Brues, Amer. Nat., vol. 36, p. 376, 1902. 1 species. Type, Xanionotum 

 hystrix Brues. 



i/ Xanthandrus Verrall, Brit. Flies, vol. 8, p. 316, 1901. 5 species. Type, Musca 

 comta Harris, the first species, by present designation. 



1/ Xanthina Aldricii, Kansas Univ. Sci. Bull., vol. 1, p. 92, 1902. 1 species. Type, 

 Xanthina plumicauda Aldrich. 



j Xanthochlorus Loew, Neue Beitr., vol. 5, p. 42, 1857. 2 species. Type, Porphy- 

 rops ornalus Haliday, the first species, by present designation. Syn., Leptopus 

 Haliday, 1831, preoccupied. 



i/ Xanthocrona Wulp, Biol. Centr.-Amer., Dipt., vol. 2, p. 392, 1899. 1 species. 

 Type, Xanthocrona hipustulata Wulp. 



J Xanthodexia Wulp, Biol. Centr.-Amer., Dipt., vol. 2, p. 256, 1891. 1 species. 

 Type, Tacit ina cinerea Wiedemann. 



J Xanthogramma Schiner, Wien. Ent. Monatschr., vol. 4, p. 215, 1860. No species. 

 In his Fauna Austr., Dipt., vol. 1, 1862, p. 319, 3 species. Type, Musca pedissequua 

 Harris (as Syrphus ornatus Meigen), the second species, by designation of Williston, 

 Synop. N. Amer. Syrph., 1886, p. 91. 



,1 Xanthomelana Wulp, Tijdschr. Ent, vol. 35, p. 188, 1892. 6 species. Type, 

 Xattlhoiuelana gracilenta Wulp, the fifth species, by present designation. Syn., 

 Xantltomehinodex Townsend, 1893. 



Xanthomelanodes Townsend, Can. Ent., vol. 25, p. 167, 1893. Change of name for 

 Xavthomelana Wulp, 1892, under the mistaken impression that the latter is preoc- 

 cupied by Xanthomelon Martens, 1860, or by Xanthomelana 1 Bonaparte, 1850 (a descrip- 

 tive term for a color-group in the genus Ettplcctes). Type, Xanthomelana gracilenta 

 Wulp. Equals Xanthomelana Wulp, 1892. 



v Xanthotricha Aldrich, Trans. Ent. Soc. Lond. for 1896, p. 339, 1896. 3 species. 

 Type, Xanthotriclia cupidifera Aldrich, the first species, by present designation. 

 Equals Thrypticus Gerst.ecker, 1864. 

 v Xenochaeta Snow, Kansas Univ. Quart., vol. 2, p. 166, 1894. 1 species. Type, Xeno- 

 chsela dichromata Snow. 



^ Xenomyza Wiedemann, Zool. Mag., vol. 1, pt. 1, p. 60, 1817. 2 species. Type, 

 Damalis planiceps Fabricius, the first species, by present designation. Syn., Chalci- 

 dimorpha West wood, 1835. 



