594 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



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

 Limmra Rondani, 1856; Limnoica Rondani, 1861. 



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

 Type, Polymedon flabellifer Osten Sacken. 



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

 hirticornis F.\bricius. 



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

 Polymorphomyia basilica Snow. 



Polyraphia Meigen, Syst. Beschr. Zweifl. Ins., vol. 1, p. Ill, ]818. 1 species. 

 Type, Erioptera tasnionota Msigen. Equals Polymeda Meigen, 1800. 



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

 cera higoti Macquart. Equals Apiocera Westwood, 1835. 



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

 Eclmiomjiia popeUl 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, 18.34; 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, Cecidomyia ((Ihitarsis 

 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, Priovella 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 cognatns Wiede- 

 mann. Equals Acidia Desvoidy, 1830. 



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

 nocera pid>escensJMEVf. Syn., Stygeropis LiOEW, 1863. 



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

 species. Type, i/mnop/wto ri/y/6«.s/s Osten Sacken. p]quals Phylidorea Bigot, 1854. 



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

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

 vol. 2, Synops., 1840, p. 126. Equals Serromyia Meigen, 1818. 



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

 Conops irritans Linn^us (as Hsematobia serrata 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. Tyj^e, Ceratopogon renusta Meigen. 

 Equals "Bezzia. Kieffer, 1899. 



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

 Type, ProbolPRUs singularis 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, Procliyliza xanthosfoma 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 HjsnpeIi, 



