NO. 1719. TYPE-8PECIE8 OF AMERICAN DIPTERA—COQUILLETT. 617 



Trinaria Mulsant, Mem. Acad. Lyons for 1852, p. 18, 1852.* 2 species. Type, 

 Anthmx rutila Wiedemann, the first species (as interrupta, new species), by present 

 designation. Equals Mima Meigen, 1820. 



Trineura Meigen, Illiger's Mag., vol. 2, p. 276, 1803. No species. In his Klass. 

 Beschr. Zweifi. Ins., 1804, pp. 313, 314, 4 species. Type, Musca aterrima Fabricius, the 

 first species (as atra, new species), by designation of Brues, Genera Insect., Dipt., 

 Phoridic, p. 8, 1906. Equals Phora Latreille, 1796. 



Triodites Osten Sacken, Bull. 3, U. S. Geol. Surv., p. 245, 1877. 1 species. Type, 

 Triodites mtts Osten Sacken. Equals Aphcebantus Loew, 1872. 



Triodonta Williston, Bull. Brooklyn Ent. Soc, vol. 7, p. 136, 1885. Changeof name 

 for Poli/donta Macquart, 1850, not of Fischer, 1807. Type, Merodon cnrnpes 

 Wiedemann. Not Triodonta Bory, 1824. Equals Polydontomyia Williston, 1896. 



Triogma Schiner, Wien. Ent. Monatschr., vol. 7, p. 223, 1863. 1 species. Type, 

 Limnobia trisulcdta Schummel. 



Triplasius LoEW, Neue Beitr., vol. 3, p. 7, 1855. 1 species. Type, Bomhylius 

 bivittalns Loew. 



Triptotricha Loew, Berliner Ent. Zeitschr., vol. 16, p. 235, 1872. 1 species. Type, 

 Triptotricha lauta Loew. 



Trisomeiopia Lioy, Atti Inst. Veneto, ser. 3, vol. 10, p. 77, 1864. 1 species. Type, 

 Trisomrtopia thoracica Lioy. Equals Megaselia Rondani, 1856. 



Trisonevra Lioy, Atti Inst. Veneto, ser. 3, vol. 10, p. 68, 1864. 1 species. Type, 

 Dexia melania Meigen (as Ptilorera cillpennis Macquart). Equals Stevenia Des- 

 VOIDY, 1830. 



Trilodi.rta Brauee and Beegenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 56, 

 p. 92, 1889. 1 species. Type, Tachina pidlata Meigen {as j)rosopoides, new species). 

 Equals Zenilla Desvoidy, 1830. 



Tritunia Meigen, Nouv. Class. Mouches, p. 33, 1800.* No species. Spilomyia 

 Meigen, 1803, is a change of name. Type, Mufica vespiformis Linnaeus. Not Tritonia 

 Cuvier, 1798. Equals Spilomyia Meigen, 1803. 



Tritoxa Loew, Monogr. Dipt. N. Amer., vol. 3, p. 102, 1873. 3 species. Type, 

 Tnjpda fexa Wiedemann, the first species, bj' present designation. 



Trixa Meigen, Syst. Beschr. Zweifl. Ins., vol. 4, p. 222, 1824. 6 species. Type, 

 Trixa dorsalis Meigen, the fifth species, by designation of Westwood, Intr., vol. 2, 

 Synops., 1840, p. 138. Syn., ifurana Meigen, 1824; CrameriaDEsvoiT>Y,1830; Semi- 

 omyia Macquart, 1848; Amsteinia Am Stein, 1858. 



Trixodisia Townsend, Trans. Amer. Ent. Soc, vol. 19, p. 102, 1892. 1 species. Type, 

 Trixodista disthicta Townsend. Equals Amobia Desvoidy, 1830. 



Trixodes Coquillett, Can. Ent., vol. 34, p. 201, 1902. 1 species. Type, Trixodes 

 obesa Cocjuillett. 



Trixostovms Rondani, Dipt. Ital. Prodr., vol. 1, p. 130, 1856. 1 species. Type, 

 Ephydra stagnalis Fallen. Equals Scatella Desvoidy, 1830. 



Trochilodes Coquillett, Trans. Amer. Ent. Soc, vol. 29, p. 102, 1903. 1 species. 

 Type, Trodiilodes skinneri Coquillett. 



Trochobola Osten Sacken, Monogr, Dipt. N. Amer., vol. 4, p. 97, 1869. Change of 

 name for Discohola Osten Sacken, 1862, under the mistaken impression that the 

 latter is preoccupied by Discoboli. Type, lAnmobia argxs Say. Equals Discobola 

 Osten Sacken, 1862. 



Tropidia IVIeigen, Syst. Beschr. Zweifi. Ins., vol. 3, p. 346, 1822. 2 species. Type, 

 Musca srita Harris (as Eri stalls milesijormis Fallen), the second species, by designa- 

 tion of Curtis, P>rit. Ent, 1832, p. 401. Syn., Milesiformis Rondani, 1844. 



Tropidomyia Williston, Can. p]nt., vol. 20, p. 11, 1888. 1 species. Type, Tropi- 

 domijia hiinacnlata Williston. 



Tropidopsis Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. AVien, vol. 56, 

 p. 132, 1889. 1 species. Type, Taddna pi/rrJiasjjis Wiedemann. 



