I 



592 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 37. 



^ Platychira Rondani, Dipt. Ital. Prodr., vol. 1, p. 64, 1856. 1 species. Type, Musca 



puparum Fabricius. Equals Meriania Desvoidy, 1830. 

 !/ Platycnema Zetterstedt, Ins. Lapp., p. 334, 1838. 1 species. Type, Empis puli- 



caria Fallen. Equals Atelestus Walker, 1837. 

 v Platyccenosia Strobl, Wien. Ent. Zeit., vol. 13, p. 72, 1894. 1 species. Type, 



Platycamosia mikii Strobl. Syn., Choristomma Stein, 1895. 

 </ Platynochaetus Wiedemann, Auss. Zweifl. Ins., vol. 2, p. 147, 1830. 1 species. 



Type, Syrphus setosus Fabricius. 

 ^ Platypalpus Macquart, Ins. Dipt. Nord France, Separata, p. 92, 1827. 18 species. 



Type, Musca cursitans Fabricius, the fourteenth species, by designation of West- 

 wood, Intr., vol. 2, Synops., 1840, p. 132. 

 y _J%it4jgeza. Meigen, Illiger's Mag., vol. 2, p. 272, 1803. No species. In his Klass. 



Beschr. Zweirrr Ins., 1804, p. 310, 3 species. Type, Platypeza fasciata Meigen, the 



first species, by designation of Rondani, Dipt. Ital.- Prodr., vof. 1, 1856, p. 139. 



Equals Clythia Meigen, 1800. 

 ^ Platyptera Meigen, Illiger's Mag., vol. 2, p. 269, 1803. 2 species. Type, Empis pla- 



typtera Panzer, the second species, by tautonymy. Equals Dionnaea Meigen, 1800. 

 t/ Platypterygia Stephens, Syst. Cat. Brit. Ins., vol. 2, p. 263, 1829. 1 species. Type, 



Empis borealis Linnaeus. Equals Empis Linnaeus, 1758. 

 i/ Pla tystom a Meigen, Illiger's Mag., vol. 2, p. 277, 1803. 1 species. Type, Musca 



seminationis Linn mv$>. Syn., Hesyquillia Desvoidy, 1830; Megaioglossa Rondani, 1869. 

 y P^afaura- MEiGEN. Illiger's Mag., vol. 2, p. 264, 1803. No species. In his Klass. 



Beschr. Zweifl. Ins., 1804, pp. 101, 102, 5 species. Type, Platyura fasciata Meigen, 



the second species, by designation of Zetterstedt, Dipt. Scand., vol. 10, 1851, p. 4077. 



Equals Zelmira Meigen, 1800. 

 / Plaxemya Desvoidy, Essai Myod., p. 392, 1830. 1 species. Type, M sea vitri- 



pennis Meigen (as sugillatrix, new species). Equals Musca Linn^us, 1758. 

 t/ Plecia Wiedemann, Auss. Zweifl. Ins., vol. 1, p. 72, 1828. 6 species. Type, 



Hirtea fulvicollis Fabricius, the second species, by designation of Blanchard, Hist. 



Nat. Ins., vol. 3, 1840, p. 576. Syn., Rhinoplecia Bellardi, 1859. 

 v Plectops Coquillett, Rev. Tach., p. 57, 1897. 1 species. Type, Plectops melis- 



sopodis Coquillett. 

 >/ Plectromyia Osten Sacken, Monogr. Dipt. N. Amer., vol. 4, p. 282, 1869. 1 species. 



Type, Plectromyia modesta Osten Sacken. 

 i/ Pleclropus Haliday, Zool. Journ., vol. 5, p. 353, 1831. 3 species. Type, Musca 



pallipes Fabricius, the first species, by designation of Westwood, Intr., vol. 2, 



Synops., 1840, p. 134 (as pallidus Meigen). Not Pleclropus Kirby, 1826. Equals 



Syntormon Loew, 1857. 

 S Plesiaslina Winnertz, Ent. Zeit. Stettin, vol. 13, p. 55, 1852. 1 species (as 2). 



Type, Mycetobia annulata Meigen. Equals Symmerus Walker, 1848. 

 ^ Plesiomma Macquart, Dipt. Exot., vol. 1, pt. 2, p. 54; 1838. 2 species. Type, 



Plesiomma lestacea Macquart, the first species, by designation of Back, Trans. Amer. 



Ent. Soc, vol. 35, p. 306, 1909. 

 ^ Plethochaeta Coquillett, Proc. U. S. Nat. Mus., vol- 23, p. 613, 1901. 1 species. 



Type, Plethocheeta varicolor Coquillett. 

 ^ Plettusa Philippi, Verh. Zool.-Bot. Ges. Wien, vol. 15, p. 597, 1865. 4 species. 



Type, Plettusa virescens Philippi, the first species, by present designation. Equals 



Geranomyia Haliday, 1833. 

 Plinthina Walker, Ins. Saund., Dipt., p. 10, 1850. 1 species. Type, Pangonius 



macroporum Macquart. Equals Pangonius Latreille, 1802. 



Ploas Latreille, Hist. Nat. Crust, et Ins., vol. 14, p. 299, 1805. 1 species. Type, 



Bombylius virescens Fabricius (as hirticomis, new species). Equals Conophorus Mei- 

 gen, 1803. 



