598 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



Pterodontia Gray, in Griffith's Anim. Kingd., vol." 15, Ins., pt. 2, p. 779, 1832. 1 

 species. Type, Pterodontid Jiaripes Gray. 



Pteroptila Loew, Berliner Ent. Zeitschr., vol. 9, p. 165, 1865. 2 species. Type, 

 Pteroptila decora Loew, the first speciefl, by present designation. Equals Meromacrus 

 EoND.\Ni, 1848. 



Pteroapilus Rondani, Dipt. Ital. Prodr., vol. 1, p. 152, 1856. 1 species. Type, Asilus 

 muacdHns Fabricius. Equals Acromyia Latreille, 1809. 



Ptilodegeeria BRAUERand Ber(;enstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 

 58, p. 375, 1891. 1 species. Type, IlypoMena obiimhraUi Wulp. 



Ptilodexia Brauer and Bergenstamm, Deukschr. Kais. Akad. Wiss. Wien, vol. 56, 

 p. 119, 1889. 1 species. Type, Estheria iihialis Desvoidy (as carolinensis, new 

 species) . Equals Phorostoma Desvoidy, 1830. 



Ptilomyia CoQUiLLETT, Proc. U. S. Nat. Mus., vol. 22, p. 261, 1900. 1 species. 

 Type, Ptilomyia enigma Coquillett. 



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

 p. 101, 1889. 1 species. Type, Tachina inarginaia Meigen. Equals Voria Desvoidy, 

 1830. 



Ptilotachina BRAUERand Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 58, 

 p. 350, 1891. 1 species. Type, Tachina civilis Rondani. Equals Exorista INIeigen, 

 1803. 



Ptiolina Zetterstedt, Dipt. Scand., vol. 1, p. 226, 1842. 2 species. Type, Leptis 

 obscura Fallen, the first species, by designation of Frauenfeld, Verb. Zool.-Bot. 

 Ges. Wien, vol. 5, 1855, p. 497. Syn., Eurytion. J.ennicke, 1867. 



Ptychoprocius Bigot, Rev. Mag. Zool. for 1859, p. 4, 1859. 1 species. Type, 

 Ptychoproctus complexus Bigot. Equals Stylogaster Macquart, 1835. 



Plychoptem Meigen, Illiger's Mag., vol. 2, p. 262, 1803. 2 species. Type, Tipula 

 contaminata Linn^us, the first species, by designation of Latreille, Consider. Gen- 

 eral., 1810, p. 442. Equals Liriope Meigen, 1800. 



Puliciphora Dahl, Zool. Anzeiger, vol. 20, p. 409, 1897. 1 species. Type, Pulici- 

 phora. luciferu Dahl. Syn., Stetliopathus Wandolleck, 1898; Pachyneurella Brues, 

 1903. 



Pullata Harris, Exp. Engl. Ins., p. 76, 1776. 6 species. Type, Tipula pomonse 

 Fabricius (as funesius, new species), the second species, by present designation. 

 Equals Bibio Geoffroy, 1762. 



PurpureUa Desvoidy, Dipt. Env. Paris, Mvop., p. 37, 1853.* 1 species. Type, 

 Purpurelln nobilis DESvoiny. Equals Stomoxoides Sch.effer, 1766. 



Pycnoglossa Coquilleit, Proc. U. S. Xat. Mus., vol. 23, p. 613, 1901. 1 species. 

 Type, Pycnoylussa Jlaripennis Coquillett. 



Pycnopogon Loew, Linn. Ent., vol. 2, p. 526, 1847. 4 species. Type, Dasypogon 

 mixtus Loew, the third species, by designation of Rondani, Dipt. Ital. Prodr., vol. 1, 

 1856, p. 157. 



Pycnosovia Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 61, 

 p. 623, 1894. 1 species. Type, Chrysomya regalis Desvoidy (as marg'ma/fs Wiede- 

 mann). Equals Chrysomya Desvoidy, 1830. 



Pygostolus Loew, Berliner Ent. Zeitschr., vol. 10, p. 16, 1866. 3 species. Type, 

 DaHypngon politus Say (as argentifer, new species). Not Pygostolus Haliday, 1833. 

 Equals Nicocles J.ennicke, 1867. 



Pyrellia Desvoidy, Essai Myod., p. 462, 1830. 3 species (as 9). Type, Musca 

 cadarerma Linn.kus, the second to fourth supposed species, by designation of Zetter- 

 stedt, Dipt. Scand., vol. 4, 1845, p. 1320. 



Pyrgota Wiedemann, Auss. Zweifl. Ins., vol. 2, p. 580, 1830. 1 species. Type, 

 Pyrgotu nndata Wiedemann. Syn., Oxycephala Macquart, 1843. 



Pyritis Hunter, Can. Ent., vol. 29, p. 131, 1897. 1 species. Type, Pyritis monti- 

 gena Hunter. 



