510 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



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

 Mvsca leucocephahi Rossi, the first species, by original designation. Equals Metopia 

 Meigen, 1803. 



Argyromceba Schinee, Wien. Ent. Monatschr., vol. 4, p. 51, 1860. 3 species. Type, 

 Anthrax tripunctata Wiedemann", the first species, by present designation. Equals 

 Anthrax Scopoli, 1763. 



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

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

 Desvoioy, 1830. 



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

 Anthrax jacchus Fabricius. Equals Mima Meigen, 1820. 



Aricia Desvoidy, Essai Myod., p. 486, 1830. 9 supposed species. Type, Musca 

 impuncta Fallen, the first 5 supposed species, by designation of Coquillett, Journ. 

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



Arina Desvoidy, Essai Myod., p. 696, 1830. 1 species. Type, Arina ohscurn Des- 

 voidy. Equals Chetocera Desvoidy, 1830. 



Arisbmi Desvoidy, Hist. Nat. Dipt., vol. 2, p. 290, 1863. 1 species. Type, Arisbsea 

 lateralis Desvoidy. Equals Eliozeta Rondani, 1856. 



Arnoldia Kieffer, Wien. Ent. Zeit, vol. 14, p. 7, 1895. 2 species. Type, Ceci- 

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



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

 Stomoxys dorsalis Fabricius, Equals Dalmannia Desvoidy, 1830. 



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

 p. 360, 1891. 2 species. Type, Sphixapata piligena Rondani, the second species, 

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

 1893, p. 504. Equals Senotainia Macquart, 1846. 



Arrhcnica Osten Sacken, Proc. Acad. Nat. Sci. Phila. for 1859, p. 243, 1860. 2 

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

 nation. Equals Caloptera Guerin, 1829. 



Arribahagia Theobald, Monogr. Culic, vol. 3, p. 81, 1903. 1 species. Type, Arri- 

 hahagia maculipes Theobald. Equals Cellia Theobald, 1902. 



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

 Type, Clifellaria amenides Walker, the second species, by designation of Brauer, 

 Denkschr. Kais. Akad. Wiss. Wien, vol. 44, 1882, p. 86. Syn., Acanthina W^iede- 

 mann, 1830, preoccupied; AcantJdnomyia Hunter, 1900. 



Artliria Kirby, Fauna Bor. Amer. , Ins. , p. 311, 1837. 1 species. Type, Arthrki analis 

 Kirby. Equals Aspistes Meigen, 1818. 



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

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



Arthrochaeta BRAUERand Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 56, 

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

 Syn., Microtricliomma Giglio-Tos, 1893. 



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

 Type, Arthrocnodax ritis RtJBSAAMEN, the first species, by present designation. 



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

 Arthropeaa sibirica Loew. 



Arthrostylujn WiL,i,iiiTOfi, Kansas Univ. Quart., vol. 4, p. 108, 1895. 1 species. Type, 

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

 1851. 



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

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

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

 Williston, 1886. 



