594 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 37. 



1803; Polygraphia Meigen, 1818; Octavia Bigot, 1854; Chemalida Rondani, 1856; 

 Llmnna Rondani, 1856; Limnoica Rondani, 1861. 



Polymedon Osten Sacken, Bull. 3, U. S. Geol. Surv., p. 317, 1877. 1 species. 

 Type, Polymedon flabelUfer Osten Sacken. 



Polymera Wiedemann, Dipt. Exot., p. 40, 1821. 1 species. Type, Chironomus 

 hirticornis Fabricius. 



Polymorphomyia Snow, Kansas Univ. Quart., vol. 2, p. 165, 1894. 1 species. Type, 

 Folymorphomyia basilica Snow. 



Polyraphia Meigen, Syst. Beschr. Zweifl. In.*., vol. 1, p. ill, 1818. 1 species. 

 Type, Erioptera ^rnionoto Meigen. Equals Polymeda INIeigen, 1800. 



Pomacera Macquart, Dipt. Exot., Suppl. 2, p. 47, 1847. 1 species. Type, Porna- 

 cera bigod Macquart. Equals Apiocera Westwood, 1835. 



Popelia Bezzi, Bull. Soc. Ent. Ital., vol. 26, p. 256, 1894. 1 species. Type, 

 Echinomyia popelii Portschinsky. Equals Peleteria Desvoidy, 1830. 



Porphyrops Meigen, Syst. Beschr. Zweifl. Ins., vol. 4, p. 45, 1824. 29 species. 

 Type, Musca diaphana Fabricius, the first species, by designation of Westwood, 

 Intr., vol. 2, Synops., 1840, p. 134. Syn., Argyra Macquart, 1834; Lasiargyra 

 Mik, 1878. {Porphyrops of authors equals Perithinus Haliday.) 



Porricondyla Rondani, Mem. 2a. Serv. Ditt. Ital., p. 14, 1840.* No species. In 

 his Dipt. Ital. Prodr., vol. 1, 1856, p. 199, 1 species. Type, Ceddomyia idbltarsis 

 Meigen. 



Porsenus Darlington, Trans. Amer. Ent. Soc, vol. 34, p. 69, 1908. 1 species. 

 Type, Porsenus johnsoni Darlington. 



Prionella Desvoidy, Essai Myod., p. 759, 1830. 2 species. Type, Prionella beau- 

 voisii Desvoidy, the first species, by present designation. 



Prionimera Rondani, Dipt. Ital. Prodr., vol. 4, p. 10, 1861. Change of name for 

 Epidesmia Rondani, 1856, not of Westwood, 1841. Type, Tephritis cognatus Wiede- 

 mann. Equals Acidia Desvoidy, 1830. 



Prionocera Loew, Ent. Zeit. Stettin, vol. 5, p. 170, 1844. 1 species. Type, Prio- 

 nocera pubescens Loew. Syn., Stygeropis Loew, 1863. 



Prionolabis Osten Sacken, Proc. Acad. Nat. Sci. Phila. for 1859, p. 239, 1860. 1 

 species. Type, LimnopMa nt/i6asis Osten Sacken. Equals Phylidorea Bigot, 1854. 



Prionomyia Stephens, Syst. Cat. Brit. Ins., vol. 2, p. 237, 1829. 6 species. Type, 

 Ceratopogon femoratus Meigen, the first species, by designation of Westwood, Intr., 

 vol. 2, Synops., 1840, p. 1?6. Equals Serromyia Meigen, 1818. 



Priophora Desvoidy, Hist. Nat. Dipt., vol. 2, p. 611, 1863. 1 species. Type, 

 Conops irritans Linnaeus (as //a-maio^ia serrato Desvoidy). Equals Haematobia St. 

 Fargeau and Serville, 1828. 



Probezzia Kieffer, Gen. Ins., Dipt., Chir., p. 57, 1906. Described as a subgenus 

 of Bezzia, under which genus 44 species were listed without any reference as to 

 which subgenus each belonged. The forty-third species, agreeing with the characters 

 of this subgenus, may be taken as the type. Type, Ceratopogon venusta Meigen. 

 Equals Bezzia Kieffer, 1899. 



Probolaeus Williston, Trans. Ent. Soc. Lond. for 1896, p. 261, 1896. 1 species. 

 Type, Probol.Tiis singtdaris Williston. 



Proboscimyia Bigot, Bull. Soc. Ent. France for 1883, p. 30, 1883. 1 species. 

 Type, Proboscimyia siphonina Bigot. Syn., Dolichoglossa Stein, 1898. 



Prochyliza Walker, List Dipt. Brit. Mus., vol. 4, p. 1045, 1849. 1 species. 

 Type, I'rochyliza xanthostoma Walker. 



Procladius Skuse, Proc. Linn. Soc. N. S. Wales, ser. 2, vol. 4, p. 283, 1889. 

 2 species. Type, Procladius paludicola Skuse, the first species, by present designa- 

 tion. 



Procrita Hendel, Gen. Ins., Dipt., Laux., p. 59, 1908. 1 species. Type, Procrita 

 pectinata UmWih^ 



