A 



94 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



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



Limncea Rondani, 1856; Limnoica Rondani, 1861. 

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



Type, Polymedon flabell if er Osten Sacken. 

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



hirticomis Fabricius. 

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



Polymorphomyia basilica Snow. 

 is Polyraphia Meigen, Syst. Beschr. Zweifl. Ins., vol. 1, p. Ill, 1818. 1 species. 



Type, Erioptera txnionota Meigen. Equals Polymeda Meigen, 1800. 

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



cera bigoti Macquart. Equals Apiocera Westwood, 1835. 

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



Echinomyia popelii Portschinsky. Equals Peleteria Desvoidy, 183Q. 

 " 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. ) 

 i/ 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 alhitarsis 



Meigen. 

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



Type, Porsenus johnsoni Darlington. 

 s 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, Limnophila rufibasis Osten Sacken. Equals Phylidorea Bigot, 1854. 

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



( 'eratopogon femoratus 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 Kiepfer, 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. 

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



Tyne, Probolseus singidaris Williston. 

 S 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, Prochyliza 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, Procrzta 



pectinata Hendel, 



