592 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 

 t ^_ 



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- 

 cana Fallen. Equals Atelestus Walker, 1837. 



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

 Plati/cwnosia mikii Strobl. Syn., Choristomma Stein, 1895. 



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

 Type, Si/rplius 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. 



Plati/peza Meigen, Illiger's Mag., vol. 2, p. 272, 1803. No species. In his Klass. 

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

 firs^t species, by designation of Rondani, Dipt. Ital. Prodr., vol. 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. 



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

 Empis borealis Linnaeus. Equals Empis Linn^us, 1758. 



Platystoma Meigen, Illiger's Mag., vol. 2, p. 277, 1803. 1 species. Type, Musca 

 seminationis LiyiN Mus. Syn., Hesyquillia Desyoiby, 1830; il/e^a?o^Zossa Rondani, 1869. 



Platyura 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 Meiges, 

 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- 

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



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. 



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. 



Plectropus Haliday, Zool. Journ., vol. 5, p. 353, 1831. 3 species. Type, Musca 

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

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

 Syntormon LoEW, 1857. 



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

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



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

 Plesiomina. testacca 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, PlethocJucta varicolor Coquillett. 



Plettusa Philippi, Verb. 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. 



PHidhina Walker, Ins. Saund., Dipt., p. 10, 1850. 1 species. Type, Pangonins 

 macroporum Macquart. Equals Pangonius Latreille, 1802. 



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

 Bomhylius viresceiis Fabricius (as hirticornis, new species). Equals Conophorus Mei- 

 gen, 1803. 



