NO. 1719. TYPE-SPECIES OF AMERICAN DIPTERA—COQUILLETT. 597 



Psilocephala Zetterstedt, Ins. Lapp., p. 525, 1838. 3 species. Type, Bibio 

 imherbis Fallen, the second species, by present designation. 



Psilocurus LoEvv, Berliner Ent. Zeitschr , vol. 18, p. 373, 1874. 1 species. Type, 

 Psilocurus nudiusculus LoEW. Syn., Orihoneuroniyia WiLhisTOJH, 1893. 



Psilometopia Lioy, Atti Inst. Veneto, ser. 3, vol. 9, p. 990, 1864. 1 species. 

 Type, fChortophUa avsin Macquart. Equals Pegomya Desvoidy, 1830. 



PsUoimjia Latreille, in Cuvier's Regne Anim., new ed., vol. 5, p. 525, 1829. 

 Change of name for Psila Meigen, 1803, on account of an alleged similar name in 

 the Hemiptera. Type, 3fusca Jimetaria Linnaeus. Equals Psila Meigen, 1803. 



Psilopa Fallen, Hydrom. Sveciai, p. 6, 1823. 4 species. Type, Notiphila nitidiUa 

 Fallen, the last species, by designation of Rondani, Dipt. Ital. Prodr., vol. 1, 1856, 

 p. 132. Syn., Hi/grella Haliday, 1839; Ephygrohia Schiner, 1862; Diasemocera Bezzi, 

 1895. 



Psilopodinus Bigot, Bull. Soc. Ent. France for 1888, p. 24, 1888. 1 species. Type, 

 Dolichopus platypterus Fabricius. Equals Sciapus Zeller, 1842. {Psilopodinus of 

 authors equals Megistostylas Bigot. ) 



Psilopodius Rondani, Dipt. Ital. Prodr., vol. 4, p. 11, 1861. Change of name for 

 Psilopus Meigen, 1824, not of Poli, 1795. Type, Dolichopus platypterus Fabricius. 

 Equals Sciapus Zeller, 1842. 



Psiloptera Lioy, Atti Inst. Veneto, ser. 3, vol. 9, p. 906, 1864. 1 species. Type, 

 Musca irritans Fallen. Equals Hydrotsea Desvoidy, 1830. 



Psilopus Meigen, Syst. Beschr. Zweifl. Ins., vol. 4, p. 35, 1824. 7 species. Type, 

 Dolichopus platypterus Fabricius, the second species, by designation of Westwood, 

 Intr., vol. 2, Synops., 1840, p. 134. Not Psilopus Poli, 1795. Equals Sciapus 

 Zeller, 1842. 



Psilosoma Lioy, Atti Inst. Veneto, ser. 3, vol. 9, p. 1118, 1864. 1 species. Type, 

 Anthomyza gracilis Fallen. Equals Anthomyza Fallen, 1810. 



Psilota Meigen, Syst. Beschr. Zweifl. Ins., vol. 3, p. 256, 1822. 1 species. Type, 

 Psilota anthracina Meigen. 



Psilotanypus Kieffer, Mem. Soc. Sci. Bruxelles, vol. 30, p. 318, 1906. No species. 

 In Gen. Ins., Dipt, Chir., 1906, p. 38, 7 species. Type, Tanypus hellus Loew, the 

 first species, by present designation. 



Psorophora Desvoidy, Mem. Soc. Hist. Nat. Paris, vol. 3, p. 412, 1827. 2 species. 

 T\ pe, Calex ciliatus Fabricius, the first species, by designation of Theobald, Monogr. 

 Culicidfe, vol. 1, 1901, p. 263. 



Psychoda Latreille, Precis, p. 152, 1796. No species. In his Hist. Nat. Crust, 

 et Ins., vol. 3, 1802, p. 424, 1 species. Type, Tipula phalmioides Linn.eus. Syn., 

 P/tate)mZa Meigen, 1800; JV(c/iojo<era Meigen, 1803; Tmeana Schellenberg, 1803. 



Ptecticus Loew, Verb. Zool.-Bot. Ges. Wien, vol. 5, p. 142, 1855. 5 species. 

 Type, Sargus testaceiis Fabricius, the last species, by original designation. 



Pterallastes Loew, Berliner Ent. Zeitschr., vol. 7, p. 317, 1863. 2 species. Type, 

 Pterallasles thoracicus Loew, the first species, by designation of Osten Sacken, Cat. 

 Dipt. N. Amer., 1878, p. 250. 



Pterellipsis Coquillett, Can. Ent., vol. 31, p. 333, 1899. 1 species. Type, Pterel- 

 lipsis ara)ie;v Coquillett. 



Pterocalla Rondani, Ins. Ditt. Brasil, p. 83, 1848. 1 species. Type, Dictya ocellata 

 Fabricius. 



Pterocera Meigen, Illiger's Mag., vol. 2, p. 275, 1803. 4 species. Type, Musca pel- 

 lucens LiNN^us, the second species, by present designation. Equals Volucella 

 Geoffroy, 1762. 



Pterocosmus Walker, List. Dipt. Brit. Mus., vol. 1, p. 78, 1848. 2 species. Type, 

 Pterocosmus hilpa Walker, the second species, by present designation. Equals 

 Caloptera Guerin, 1829. 



