554 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



<y Hydrodromia Macquart, Hist. Nat., Dipt., vol. 2, p. 658, 1835. 2 species. Type, 



Heleodromia stagnalis Haltday, the second species, by designation of Coquillett, 



Proc. Ent. Soc. Washington, vol. 5, 1903, p. 251. 

 y Hydromyza Fallen, Kongl. Vet. Acad. Handl. for 1813, p. 243, 1813. 1 species. 



Type, Musca livens Fabricius. Syn., Nupharia Desvoidy, 1830. 

 '/ Hydrophoria Desvoidy, Essai Myod., p. 503, 1830. 6 species (as 9). Type, Musca 



vespertina Fallen (as littoralis, new species), the last species, by designation of West- 

 wood, Intr., vol. 2, Synops., 1840, p. 142 (as nigrila Fallen). Syn., Hebecnema 



Schnabl, 1889. (Hydrophoria of authors equals Zaphne Desvoidy. ) 



Hydrophorus Fallen, Monogr. Dolich. Svecite, p. 2, 1823. 7 species. Type, Hydro- 



phorus jaculus Fallen, the last species, by designation of Macquart, Recueil Sot-. Sci. 



Arts Lille for 1827, p. 249. Equals Medetera Fischer, 1819. (Hydrophorus of authors 



equals Aphrozeta Perris.) 

 ** Hydropota Rondani, Dipt. Ital. Prodr., vol. 4, p. 10, 1861. Change of name for 



Hydrellia Desvoidy under the mistaken impression that it is interfered with by 



Hydrelia Hubner. Type, Notiphila flaviceps Meigen. Equals Hydrellia Desvoidy, 



1830. 

 f Hydrotaea Desvoidy, Essai Myod., p. 509, 1830. 12 species (as 17). Type, Musca 



meteorica Linnaeus, the eleventh species, by designation of Curtis, Brit. Ent., 1839, 



p. 768. Syn., Lasiops Meigen, 1838; Onodontha Rondani, 1856; Psilojitera Lioy, 



1864; Microcera Lioy, 1864. 

 ^ Hygrella Haliday, Ann. Nat. Hist., vol. 3, p. 223, 1839. 2 species. Type, Notiphila 



nitidula Fallen, the first species, by designation of Westwood, Intr., vol. 2, Synops., 



1840, p. 153. Equals Psilopa Fallen, 1823. 

 "" Hygroceleulhus Loew, Neue Beitr., vol. 5, p. 10, 1857. 3 species. Type, Dolichopus 



latipennis Fallen, the first species, by present designation. Equals Dolichopus 



Latreille, 1796. 

 iS Hygrophila Lioy, Atti Inst. Yeneto, ser. 3, vol. 9, p. 1102, 1864. 1 species. Type, 



Ephydra coarctata Fallen? (as fascipennis Macquart?, an error for fuscipennis). 



Equals Napaea Desvoidy, 1830. 

 "' Hylemya Desvoidy, Essai Myod., p. 550, 1830. 11 species (as 16). Type, Musca 



strigosa Fabricius (as strenua and plebeia, new species), the first species, by designa- 

 tion of Rondani, Dipt. Ital. Prodr., vol. 1, 1856, p. 96. Syn., Delia Desvoidy, 1830; 



Egeria Desvoidy, 1830; Musciosoma Lioy, 1864; Gaslrolepta Lioy, 1864; Nevrola Lioy, 



1864; Pachystoma Lioy, 1864. 



Hylephila Rondani, Dipt. Ital. Prodr., vol. 6, p. 13, 1877. 1 species. Type, Musca 



buccata Fallen. Equals Leucophora Desvoidy, 1830. 

 " Hyper eta Desvoidy, Hist. Nat. Dipt., vol. 2, p. 379, 1863. 1 species. Type, Hypersea 



abdominalis Desvoidy. Equals Stevenia Desvoidy, 1830. 

 *s Hyperalonia Rondani, Arch. Zool., vol. 3, p. 57, 1864. 13 species. Type, 



Stomoxys morio Fabricius (as Anthrax erythrocephala Fabricius), the fifth species, by 



present designation. Syn., Velocia Coquille it, 1886. 

 •/ Hyperdiplosis Felt, 23d Rep. State Ent. N. Y.,p. 405, 1908. 1 species. Type, 



Cecidomyia lobata Felt. 

 ^ HyperecteinaScHiNER,Wien. Ent. Monatschr.,vol. 5, p. 143, 1861. 1 species. Type, 



Hyperecteina metopina Schiner. Syn., Admontia Brauer and Bergenstamm, 1889. 

 J Hypertrophocera Townsend, Trans. Amer. Ent. Soc, vol. 18, p. 360, 1891. 1 species. 



Type, Hypertrophocera parvipes Townsend. Syn., Neolractocera Townsend, 1892. 

 s Hyphantrophaga Townsend, Psyche, vol. 6, p. 247, 1892. 1 species. Type, Meigenia 



hyphantrix Townsend. 

 y Hypocera Lioy, Atti Inst. Veneto, ser. 3, vol. 10, p. 78, 1864. 3 species. Type, 



Trineura mordellaria Fallen, the first species, by designation of Brues, Gen. Ins., ' 



Dipt., Phoridse, 1906, p. 6. Syn., Nemosia Lioy, 1864; Gymnoptera Lioy, 1864. 



