246 ENTOMOLOGICAL SOCIETY 



adopted that the name dates from its earliest appearance in print 

 if accompanied by a description or by the name of a described 

 species ; on the other hand, when both the name of the genus and 

 of the species listed under it are simply manuscript names, it is 

 evident that as yet ihe genus can have no standing. 



HISTORICAL. 



In the following list all generic names are given in regular 

 alphabetical order, valid genera in bold-faced type, synonyms in 

 italics. 



Acromyia Latreille, Gen. Crust. Ins., iv, 305, 1809. (Syneches 

 Walker, 1852; Pterospilus Rondani, 1856.) 



Type : Asilus muscarius Fabricius. 



Latreille placed Acromyia Bonelli (evidently a MS. name) as a synonym 

 of Hybos Meigen, gave a brief description of the genus, and mentioned 

 Acromyia asiliformis Bonelli, Stomoxys asiliformis Fabricius (Asilus 

 muscarius Fabricius, according to Meigen,* repeated by SchinertX 



Anthalia Zetterstedt, Ins. Lappon., 538, 1838. 

 Type : Anthalia gyllenhali Zetterstedt. 



Zetterstedt described three species as new, the first, A. gyllenhali. 



Anthepiscopus Becker, Wiener Ent. Zeit., x, 281, November 

 30, 1891. 



Type : Anthepiscopus ribcsii Becker. 



Becker described two species as new and figured the first, A. ribesii. 



Ardoptera Macquart, Ins. Dipt. Nord France, Separata, 106, 

 1827. (= Dolichocephala Macquart* 1823.) 



Type : Tachydromia irrorat'a Fallen. 



Work not seen by the writer, but Macquart laterj mentions only one 

 species in this genus, Tachydromia irrorata Fallen. 



Bergenstammia Mik, Verh. k. k. Ges. Wien 1881, 326, 

 1882. 



Type : Clinocera nudipes Loew. 

 Mik mentioned only one species, Clinocera nudipes Loew. 



Bicellaria Macquart, Recueil Trav. Soc. Sci. Agr. Arts Lille, 

 155, 1823. (Cyrtoma Meigen, 1824.) 



Type : Empis spuria Fallen. 



Macquart described one species as new, B. nigra ( Empis spuria Fal 

 len). 



Blepharoprocta Loew, Berl. Ent. Zeitsch.,vi, 194, May, 1862. 

 Type : Brachystoma nigrimana Loew. 

 Loew mentioned three species, the first, Brachystoma nigrimana Loew. 



* Syst. Besch.. n, 349. 



fFaun. Aus . Dipt., i. 77. 



J Hist. Nat. Dipt,, i, 358, 1834. 



