256 ENTOMOLOGICAL SOCIETY 



Work not seen by the writer. Westwood* designated as the type 

 Musca curst tans Fabricius, the nineteenth species described in a later 

 work by Macquart.t 



Platyptera Meigen, Illiger's Mag., n, 269, 1803. 



Type : Empis platyptera Panzer. 



Meigen mentioned two species, Empis, borealis Fabricius (= Linne) 

 and E. platyptera Panzer; the first species belongs to the previously 

 erected genus Empis. 



Platypterygia Stephens, System. Catal., 263, 1829. (=Em- 

 pis Linne, 1758.) 



Type: Empis borealis Linne. 

 Stephens listed only the above species. 



Platytelma Rondani, Dipt. Ital. Prod., i, 138, 1856. (/!//'- 

 crocyrta Bigot, 1857; Pachypeza Lioy, 1864.) 

 Type : Cyrtoma pallipes Meigen. 

 Rondani designated the above species as the type. 



Polydromya Bigot, Ann. Soc. Ent. France, 557, 1857. ( = 

 Chelifera Macquart* 1823.) 



Type : Tachydromia prcecatoria Fallen . 



Bigot mentioned no species, but the characters given accord well with 

 the imperfect figure by MeigenJ intended to represent Tachydromia 

 prtecatoria Fallen. 



Pterospilus Rondani, Dipt. Ital. Prod., i, 152, 1856. ( = 

 Acromyia Latreille, 1809.) 



Type : Asilus muscarius Fabricius. 



Rondani designated as the type the above species under the generic 

 name of Hybos. 



Ragas Walker, Entom. Mag., iv, 229, 1837. (Synamphotera 

 Loew, 1858.) 



Type : Ragas unica Walker. 



Walker mentioned only the above species. 



Rhamphomyia Meigen, Syst. Besch., in, 42, 1822. (=Ma- 

 crostomus Wiedemann, 1817.) 



Type : Empis sulcata Fallen. 



Meigen described 37 species, the ninth, Rhamphomyia sulcata Meigen 

 (Empis sulcata Fallen) was designated as the type by Curtis. 



Rhamphomyza Zetterstedt, Ins. Lappon.,562, 1838. (=Ma- 

 crostomus Wiedemann^ 1817.) 



* Introd , ii. Synop., 132, 1840. 

 f Hist. Nat. Dipt., i, 355, 1834. 

 J Syst. Besch., in. pi. 23, fig. 13. 

 Brit. Entom., 517, 1834. 



