556 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



Ischnomyia Lokw, Berliner Ent. Zeitschr, , vol. 7, p. 325, 186:1 1 species. Type, 

 Diantata.^ alhkuiita Walker (as rittida, new species). 



Isogaster Liov, Atti Inst. Veneto, ser. 3, vol. 9, p. 1114, 1864. 1 species. Type, 

 Borborus nigrifemoratus Macquakt. Equals Copromyza Fallen, 1810. 



Isoglossa Coquillett, Can. Ent., vol. 27, p. 125, 1895. 1 species. Type, Isoglossa 

 hastntn Coquillett. Not Isoglossa Casey, 1893. Equals Eucoronymyia Townsend, 

 1908. 



Isoiiu'r<i Desvoidy, Ann. Soc. Ent. France for 1851, p. 315, 1851. 2 si)ecies. Type, 

 Rhed'ta sinila Desvoidy (as Rcaumeria blutideli Desvoidy), the first species, l)y present 

 designation. Equals Salmacia Meigex, 1800. 



Xso/>m//i«s OsTEN Sacken, Biol. Centr.-Amer., Dipt., vol. 1, p. 96, 1886. 2^species. 

 Type, Isopentlu's j;vnmckeana Osten Sacken, the second species, by present designa- 

 tion. Equals Villa Lioy, 1864. 



Isoplastus Skuse, Proc. Linn. Soc. N. S. Wales, ser. 2, vol. 4, p. 279, 1889. 

 3 species. Type, Isoplastus notahilis Skuse, the first species, by present designation. 



Isostomyia Coquillett, Class. Mosq., p. 16, 1906. 1 species. Type, A'hles pertur- 

 bans Williston. 



Isloglossa Rondani, Dipt. Ital. Prodr., vol. 1, ji. 77, 1856. 1 species. Type, Islo- 

 glossn paella Rondani. Equals Clausicella Rondani, 1856. 



Itamus LoEw, Linn. Ent., vol. 4, p. 84, 1849. 4 species. Type, Asilns ci/aiiurus 

 LoEW, the first species, by present designation. Not Itatnns ScHMioT-GfEBEL, 1846. 

 Equals Neoitamus Osten Sack en, 1878. 



Iteaphila Zettekstedt, Ins. Lapp., p. 540, 1838. 2 species. Type, Iteaphila 

 maapuirtl Zettekstedt, the first species, by designation of Coquillett, Proc. Ent. Soc. 

 Washington, vol. 5, 1903, p. 251. Syn., Sleleocheta Becker, 1887. 



Itonida Meigen, Nouv. Class. Mouch., p. 19, 1800.* No species. Cecidomyia 

 Meigen, 1803, is a change of name. Type, Tipula pini Be Geer. Syn., Cecidomyia 

 MEKiEN, 1803; Diplosls Loew, 1851. 



Janetiella Kieffer, Syn. Cec. Eur. Alger., p. 23, 1898. 3 species. Type, Cecido- 

 myia lliijmi Kieffer, the first species, by ])resent designation. 



Janthinosoma Ahribalz/vGA, Rev. Mus. La Plata, vol. 1, p. 394, 1891. 1 species. 

 Type, Culex discriicians Vf Ai,KEV.. Syn., Ton c/<///ia.s<e.s Theobald, 1901. 



Javetia Desvoidy, Hist. Nat. Dipt., vol. 1, p. 1115,1863. 1 species (as 3). Type, 

 Tachina chalconoia Meigen. Equals Macquartia Desvoidy, 1830. 



Joannisia Kieffer, Bull. Soc. Ent. France for 1894, p. 175, 1894. 2 species. Type, 

 Joanvisia aurutdiaca Kieffer, the first species, by present designation. 



Joblotia Blanch ard, Compt. Rend. Soc. Biol., vol. 53, d. 1046, Dec. 6, 1901. Change 

 of name for Trichoprosopon Theobald, July 15, 1901, under the mistaken idea that 

 this is preoccupied by TrichDjirosopns Macquart, 1843. Type, Trichoprosopon niripei 

 Theobald. Equals Trichoprosopon Theobald, July 15, 1901. 



Johannseniella Williston, Tourn. N. Y. Ent. Soc, vol. 15, p. 1, 1907. Change of 

 name for fkratolophus Kieffer, 1899, not of Bocourt, 1873. Type, Ceraiopogon femo- 

 rata Meigen. Equals Serromyia Meigen, 1818. 



Johnsonia Coquillett, Proc. Acad. Nat. Sci. Phila. for 1895, p. 316, 1895. 1 species. 

 Type, Jolinsonia elegans Coquillett. 



Johnsonomyia Felt, 23d Rep. State Ent. N. Y., p. 417, 1908. 3 species. Type, 

 Jolinsonouojia rubra Felt, the last species, by original designation. 



Jurinella Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 56, 

 p. 132, 1889. 1 species. Type, /«r*';)(Vt caruleonigra Macquart. Syn., PseudoJiystricia 

 Bracer and Bergenstamm, 1889; Enjurinia TowysE'SD, 1908. 



Jurinia Desvoidy, Essai Myod., p. 34, 1830. 10 species (as 12). Type, Jurinia 

 gagatea Desvoidy, the fifth species, by present designation. 



Karshomyia Felt, 23d Rep. State Ent. N. Y., p. 398, 1908. 1 species. Type, 

 Mycodiplosis vibnrni Felt. 



