NO. 1719. TYPE-SPECIES OF AMERICAN DIPTERA—COQUI LLETT. 617 



Trlnarki Mulsant, INIein. Acad. Lyons for 1852, p. 18, 1852.* 2 species. Type, 

 Anthrax rutila Wiedemann, the first species (as interriipta, new species), by present 

 designation. Equals Mima Meigen, 1820. 



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

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

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

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



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

 Triodites vius Osten Sacken. Equals AphcEbantus Loew, 1872. 



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

 for Pohjdontn Macquart, 1850, not of Fischer, 1807. Type, Merodon curvipes 

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



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

 Lininobia trimlcata Schummel. 



Triplasius Loew, Neue Beitr., vol. 3, p. 7, 1855. 1 species. Type, BomhyUus 

 blvittatns Loew. 



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

 TripfotricJia laufa Loew. 



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

 Trisometopia tlioracica Liov. Equals Megaselia Rondani, 1856. 



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

 Dexia melania Meigen (as Ptilocera cilipennis Macquart). Equals Stevenia Des- 

 voidy, 1830. 



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

 p. 92, 1889. 1 species. Type, Tadiina pidlnta Meigen (as prosopoidcs, new species). 

 Equals Zenilla Desvoidy, 1830. 



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

 Meigen, 1803, is a change of name. Type, 3fusca vespiforrnis Linnaeus. Not Tritonla 

 Cuvier, 1798. Equals Spilomyia Meigen, 1803. 



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

 Trypeta flexa Wiedemann, the first species, by present designation. 



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

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

 Synops., 1840, p. 1.38. Syn., ifwra?;« Meigen, 1824; rVomerm Desvoidy, 1830; Semi- 

 omyia Macquart, 1848; Amsteinia Am Stein, 1858. 



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

 Trixodista distlnda Townsend. Equals Amobia Desvoidy, 1830. 



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

 obesa Coquillett. 



Trixostomus 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, Trochilodes sHnneri Coquillett. 



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

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

 latter is preoccupied by Discoboli. Type, Lininobia argus Say'. Equals Diseobola 

 Osten Sacken, 1862. 



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

 Miisca scita Harris (as EristaJis milesiformis Fallen), the second species, by designa- 

 tion of Curtis, Brit. Ent., 1832, p. 401. Syn., Milesiformis Rondani, 1844. 



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

 domyia biniacnlata Williston. 



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

 p. 132, 1889. 1 species. Type, Tadiina pyrrhuspisWiKUEMAHti. 



