578 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



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

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

 Soc. Ent. Ital., vol. 7, 1875, p. 2. Syn., Alticomerus Rondani, 1856. 



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

 Oilorops 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 karnercnsis 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 Linnaeus, 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, 

 CEcacta furens Poey. Equals Culicoides Latreille, 1809. 



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

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

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



CEdaspis 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, Oestrus tarandi Linnaeus. 



(Edemapeza 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, CEdemasoma 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, 

 (Edopa capito Loew. 



G^doparea Loew, Zeitschr. Ent. Breslau, vol. 13, p. 10, 1862. 1 species. Type, 

 Heleromyza 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^us, Syst. Nat., 10th ed., p. 584, 1758. 5 species. Type, (Estrus 

 avis LiNN.'Eus, the fifth species, by designation of Curtis, Brit. Ent., 1826, p. 106. 

 Syn., Ccphalemyia Latreille, 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 

 gibbosus Fabricius). Syn., Henops Meigen, 1804. 



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

 Miillo leacoprocta Wiedemann (as diiaidiata, new species). 



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

 caudata Zetterstedt, the first species, by Becker, who, in the Berliner Ent, 



