516 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



Brachydeutera Loew, Monogr. Dipt. N. Amer., vol. 1, p. 162, 1862. 1 species. 

 Type, Notiphila argentata Walkeij (as dimidiata, new species). 



Brachygaster Meigen, Syst. Benchr. Zweifl. Ins., vol. 5, p. 244, 1826. 1 species 

 (as 2). Type, CordUura analis Meigen. Not Brachygaster Leacii, 1817. Equals 

 Mycetaulus Loew, 1845. 



Brachymyia Williston, Can. Ent., vol. 14, p. 77, 1882. 2 species. Type, Bra- 

 chymyia hipina Williston, the first species, by present designation. Equals Pen- 

 thesilia Meigen, 1800. 



Brachyneura RoNDANi, Mem. 2a. Serv. Ditt. Ital., p. 18, 1840.* 1 species. Type, 

 Brachiineura fuxcogrisea Rondani. 



Brachyopa Meigen, Syst. Beschr. Zweifl. Ins., vol. 3, p. 260, 1822. 3 species. 

 Type, Musca conica Panzer, the first species, l>y designation of Westwood, Intr., 

 vol. 2, Synops., 1840, p. 137. Syn., llammerschmidtia Schummel, 1834; Exocheila 

 Rondani, 1857; Eagenimnyia Williston, 1882. 



Brachypalpus Macquart, Hist. Nat., Dipt., vol. 1, p. 523, 1834. 3 species (as 5). 

 Type, SyrpJius valgus Panzer, the last species (as tuberculatus) , by designation of Ron- 

 dani, Nuovi Ann. Soc. Nat., 1844, p. 456. 



Brachypremna Osten Sacken, Berliner Ent. Zeitschr., vol. 30, p. 161, 1886. 2 

 species. Type, Tipula dispellans Walker, the first species, by present designation. 



Brachypteromyia Williston, Ent. News, vol. 7, p. 184, 1896. 1 species. Type, 

 Anapcra fimbrkiia Waterhouse {as femorafa, new species). 



Brachypus Meigen, Syst. Beschr. Zweifi. Ins., vol. 4, p. 34, 1824. 1 species. Type, 

 Diaphorus cyanocephalus JNIeigen. Equals Diaphorus Meigen, 1824. 



Brachystoma Meigen, Syst. Beschr. Zweifl. Ins., vol. 3, p. 12, 1822. 2 species. 

 Type, Syrphus resicnlosKs Fabricius, the second species, by designation of Blanchard, 

 Hist. Nat. Ins., vol. 3, 1840, p. 582. 



Brachystomus Costa, II (iiamb. Vico, Napoli, vol. 2, p. 445, 1857.* 1 species. Type, 

 Tahanus gigas Herbst (as iirsus, new species). Elfjuals Tabanus Linn.eus, 1758. 



Brachystylum Macquart, Ann. Soc. Ent. France for 1855, p. 199, 1855. 1 species. 

 Type Brachyslylum nigra Macquart. Equals Wagneria Desvoidv, 1830. 



Brauerimyia Townsend, Smiths. Misc. Coll., vol. 51, p. 65, 1908. Change of name 

 for W2dpia Brauer and Bergenstamm, 1893, not of Bigot, 1886. Type, Wulpia 

 aperta Brauer and Bergenstamm. Equals Vanderwulpia Townsend, 1891. 



Bremia Rondani, Atti Soc. Ital. Nat., vol. 2, p. 289, 1861. 1 species. Type, 

 Diplosis decorata Loew. 



Bricinnia Walker, Trans. Ent. Soc. Lond., n. ser., vol. 5, p. 324, 1861. 1 species. 

 Type, Bricinrda flexiviUa Walker. 



Bricinniella Giglio-Tos, Boll. Mus. Zool. Univ. Torino, vol. 8, No. 158, p. 13, 

 1893. 1 species. Type, Bricinniella cyanea Giglio-Tos. 



Brontsea Kowarz, Verb. Zool.-Bot. Ges. Wien, vol. 23, p. 461, 1873. 2 species. 

 Type, Anthomyia polystigma Meigen, the first species, by present designation. Equals 

 Limnophora Desvoidv, 1830. 



Bryocrypta Kieffer, Berliner Ent. Zeitschr., vol. 41, p. 8, 1891. 1 species. Type, 

 Bryocrypta dubia Kieffer. 



Bucentes Latreille, Gen. Crust, et Ins., vol. 4, p. 339, 1809. 1 species. Type, 

 Musca geniculata De Geer (as cinereus, new species). Equals Crocuta Meigen, 1800. 



Byomya Desvoidv, Essai Myod., p. 392, 1830. 2 species (as 3). Type, Musca tem- 

 pesliva Fallen, the first and last supposed species, by present designation. Equals 

 Musca LiNN.EUS, 1758. 



Cacomyia Coquillett, Class. Mosq. Amer., p. 16, 1906. 2 species. Type, Hcema- 

 gogv-s albomacnlatus Theobald, the first species, by present designation. 



Cacoxenus Loew, Wien. Ent. Monatschr., vol. 2, p. 217, 1858. 1 species. Type, 

 Cacoxenus iudagator Loew. 



