510 PROCEEDINGS OF THE NATIONAL MUSEUM. vol 



Argyria Desvoidy, Hist. Nat. Dipt., vol. 2, p. 82, 1863. 2 species (as 6). Type 

 Mvsca leucocephala Rossi, the first species, by original designation. Equals Metopij 

 Meigen, 1803. 



■« / Argyromceba Schiner, Wien. Ent. Monatschr., vol. 4, p. 51, 1860. 3 species. Type, 

 Anthrax tripunctata Wiedemann, the first species, by present designation. Equal 

 Anthrax Scopoli, 1763. 

 ,/ Argyrophylax Brauer and Bergenstamm, Denkschr. Kais. Akad.Wiss. Wien, vol.56, 

 p. 163, 1889. 1 species. Type, Tachina albincisa Wiedemann. Equals Sturmia 

 Desvoidy, 1830. 

 *s Argyrospyla Rondani, Dipt. Ital. Prodr., vol. 1, p. 162, 1856. 1 species. Type, 

 Anthrax jacchus Fabricius. Equals Mima Meigen, 1820. 



• Ariciii Desvoidy, Essai Myod., p. 486, 1830. 9 supposed species. Typo, Muscl 

 impuricta Fallen, the first 5 supposed species; by designation of Coquillett, Journ.' 

 N. Y. Ent. Soc, vol. 9, 1901, p. 135. Equals Mydsea Desvoidy, 1830. 



•s Arina Desvoidy, Essai Myod., p. 696, 183Q. 1 species. Type, Arina obscura Des- 

 voidy. Equals Chetocera Desvoidy, 1830. 



•-' Arisbxa Desvoidy, Hist. Nat. Dipt., vol. 2, p. 290, 1863. 1 species. Type, Arislnm 

 lateralis Desvoidy. Equals Eliozeta Rondani, 1856. 



• Arnoldia Kiefper, Wien. Ent. Zeit, vol. 14, p. 7, 1895. 2 species. Type, GeciA 

 domyia quercus Binney, the second species, by present designation. 



s Arpagita Lioy, Atti lust. Veneto, ser. 3, vol. 9, p. 1327, 1864. 1 species. Type, 

 Stomoxys dorsalis Fabricius. Equals Dalmannia Desvoidy, 1830. 

 v Arrenopus Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 58, 

 p. 3i>0, 1891. 2 species. Type, Sphixapata piligena Rondani, the second species, 

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

 L893, p. 504. Equals Senotainia Macquart, 1846. 



~- Arrhenica Osten Sacken, Proc. Acad. Nat. Sci. Phila. for 1859, p. 243, 1860. 2 

 species. Type, Arrhenica spinosa Osten Sacken, the first species, by present desig- 

 nation. Equals Caloptera Guerin, 1829. 



*/ Arribalzagia Theobald, Monogr. Culic, vol. 3, p. 81, 1903. 1 species. Type, Arri- 

 balzac/ia maculipes Theobald. Equals Cellia Theobald, 1902. 



>/ Artemita Walker, List Dipt. Brit. Mus., vol. 5, Suppl. ], p. 61. 1854. 2 species. 

 Type, Clitellaria amenities Walkep, the second species, by designation of Brauer, 

 Denkschr. Kais. Akad. Wiss. Wien, vol. 44, 1882, p. 86. Syn., Acanthina Wiede- 

 mann, 1830, preoccupied; Acanthinomyia Hunter, 1900. 



•s Arthria K'irby, Fauna Bor. Amer.,Ins., p. 311, 1837. 1 species. Type, Arthrvx anatk 

 Kirby. Equals Aspistes Meigen, 1818. 



s Arthroceras Williston, Ent. Amer., vol. 2, p. 107, 1886. 2 species. Type, Arth- 

 roceras pollinosus Williston, the second species, by present designation. 



-s Arthrochaeta Braver and Bergenstamm, Denkschr. Kais. Akad. AViss. Wien, vol. 56, 

 p. 134, 1889. 1 species. Type, Arthrochseta demoticoides Brauer and Bergenstamm. 

 Syn., Microtriehomma Giglio-Tos, 1893. 



• Arthrocnodax Rubsaamen, Wien. Ent. Zeit., vol. 14, p. 189, 1895. 3 species. 

 Type, Arthrocnodax vitis Rubsaamen, the first species, by present designation. 



* Arthropeas Loew, Ent, Zeit. Stettin, vol. 11, p. 304, 1850. 1 species. Type, 



Arthropeas sibirica Loew. 



"* Arthrostylum Williston, Kansas Univ. Quart., vol. 4, p. 108, 1895. 1 species. Type, 



Phenens tibialis Walker (as fascipennis, new species). Equals Pheneus Walker, 



1851. 

 ^ Ascia Meigen, Syst. Beschr. Zweifl. Ins., vol. 3, p. 185, 1822. 5 species (as 9). 



Type, Syrphus podagricus Fabricus, the first species, by designation of Westwood, 



Intr., vol. 2, 1840, Synops., p. 136. Not Ascia Scopoli, 1777. Equals Neoascia 



Williston, 1886. 



