578 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



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Odinia Desvoidy, Essai Myod., p. 648, 1830. 2 species. Type, MilicMa maculata 

 Meigen (as trinotata, new species), the first species, by designation of Rondani, Bull. 

 Soc. Ent. Ital., vol. 7, 1875, p. 2. Syn., Alticomems Roxdani, 1856. 



Odontocera Macquart, Hist. Nat., Dipt., vol. 2, p. 614, 1835. 5 species. Type, 

 Clilorops denticornis Panzer, the first species, by original designation. Not Odontocera 

 Serville, 1833. Equals Cerodontha Rondani, 1861. 



Odontodiplosis Felt, 23d Rep. State Ent. N. Y., p. 404, 1908. 1 species. Type, 

 Cecidomi/ia karnerensis Felt. 



Odontomera Macquart, Dipt. Exot., vol. 2, pt. 3, p. 372, 1843. 1 species. Type, 

 Odontomera ferruginea Macquart. Syn., Cyrtometopa Loew, 1873. 



Odontomyia Meigen, Illiger's Mag., vol. 2, p. 265, 1803. 3 species. Type, Musca 

 hydroleon Linn^us, the third species, by designation of Westwood, Intr., vol. 2, 

 Synops., 1840, p. 130. Equals Eulalia Meigen, 1800. 



Odontonyx Rubsaamen, Berliner Ent. Zeitschr., vol. 39, p. 25, 1894. 3 species. 

 Type, Sciara nigra Wiedemann, the second species, by present designation. Not 

 Odontonyx Stephens, 1828. Equals Phorodonta, new name. 



Odontopoda Aldrich, 21st Ann. Rep. Geol. Ind., p. 187, 1897. 1 species. Type, 

 Odontopoda sayi Aldrich. 



(Ecacta Poey, Mem. Hist. Nat. Cuba, vol. 1, p. 236, 1851. 1 species. Type, 

 CEcada fnrens Poey. Equals Culicoides Latreille, 1809. 



CEdalea Meigen, Syst. Beschr. Zweifl. Ins., vol. 2, p. 355, 1820. 2 species. Type, 

 Empis hyhotina Fallen, the first species, by designation of Westwood, Intr., vol. 2, 

 Synops., 1840, p. 133. Syn., Xiphidicera Macquart, 1834. 



(Edaspis Loew, Monogr. Trypet., p. 46, 1862.* 4 species. Type, Trypeta multi- 

 fasciata Loew, the second species, by present designation. Equals Orellia Desvoidy, 

 1830. 



CEdemagena Latreille, Nouv. Diet. Hist. Nat., vol. 23, p. 272, 1818. 1 species. 

 Type, (Entrus tarandi Lixn.eus. 



(Edemopeza Townsend, Smiths. Misc. Coll., vol. 51, p. 66, 1908. 1 species. Type, 

 Atrophopoda townsendi Williston. Equals Paradidyma Brauer and Bergenstamm, 

 1891. 



CEdemasoma Townsend, Smiths. Misc. Coll., vol. 51, p. 80, 1908. 1 species. 

 Type, (Edemasoma nuda Townsend. 



CEdicarena Loew, Monogr. Dipt. N. Amer., vol. 3, p. 247, 1873. 1 species. 

 Type, Trypeta tetanops Loew. 



CEdopa Loew, Berliner Ent. Zeitschr., vol. 11, p. 287, 1868. 1 species. Type, 

 (Edopu capita Loew. 



(Edoparea Loew, Zeitschr. Ent. Breslau, vol. 13, p. 10, 1862. 1 species. Type, 

 Heteromyza buccata Fallen. Equals Heteromyza Fallen, 1820. 



(Estrophasia Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 

 56, p. 145, 1889. 2 species. Type, (Estrophasia clausa Brauer and Bergenstamm, 

 the first species, by designation of Townsend, Trans. Amer. Ent. Soc, vol. 19, 1892, 

 p. 133. Equals Ormia Desvoidy, 1830. 



CEstrus Linn.eus, Syst. Nat., 10th ed., p. 584, 1758. 5 species. Type, (Estrus 

 oris LiNNiEUs, the fifth species, by designation of Curtis, Brit. Ent., 1826, p. 106. 

 Syn., Cephalemyia LiATREiLLE, 1818. 



Ogcodes Latreille, Precis, p. 154, 1796. No species. In his Hist. Nat. Crust, et 

 Ins., vol. 3, 1802, p. 432, 1 species. Type, Ogcodes zonatus Erichson (as Syrphus 

 gibhosus Fabricius). Syn., Ilenops Meigen, 1804. 



Ogcodocera Macquart, Dipt. Exot., vol. 2, pt. 1, p. 83, 1840. 1 species. Type, 

 Mulio leucoprocta Wiedemann (as dhnidiata, new species). 



Okenia Zetterstedt, Ins. Lapp., p. 734, 1838. 2 species. Type, Cordilura 

 caudata Zetterstedt, the first species, by Becker, ^yho, in the Berliner Ent, 



