600 MB. W. F. KIRBY ON THE GENEEIO NOMENCLATURE 



Genus Poltommatus. — Synonym of Gupido, Schrank. As 

 Corydon is figured, and the generic name applies very well to the 

 Blues, and not at all to the Hair-streaks, which come first on 

 the list, it seems that Corydon ought to be considered the type. 



Q-enus Hesperia. — Synonym of Erynnis, Schrank. As the 

 Plebeii Eurales form two-thirds of the Fabrician genus Hesperia, 

 and were subsequently indicated by Fabricius himself as typical, 

 it is very doubtful whether we are justified in applying the name 

 to any section of the Plebeii TJrbicoli whatever. Latreille's type 

 appears to be Proteus. 



In 1806 Dumeril published his ' Zoologie Analytique,' in which 

 he founded his new genus Seteropterus. His type, subsequently 

 indicated, ia Speculum, Eottemb., which reduces Cyolopides, Hiibn., 

 and Steropes, Boisd., to synonyms of this genus. 



In 1807 lUiger published an abstract of Pabricius's final ar- 

 rangement of the butterflies and sphinges, quoting a few types. 

 I will only mention some of the most important genera not pre- 

 viously noticed. 



Genera Cynthia and Vanessa. — Subsequently united by La- 

 treille under the latter name. 



Genera Biblis and Idea. — The practice of changing specific 

 into generic names, which is merely tolerated in otlicr branches 

 of Natural History, has made so little progress in Entomology, 

 that it can easily be suppressed without inconvenience. 



Genera Dobitis and Pontia. —Now restricted to species not 

 mentioned as typical, but probably included by Eabricius in 

 these genera, both of which are really synonymous with some of 

 older date. But for this doubt, both names ought to be rejected 

 as misapplied. 



Genus Meohanitis. — Synonymous with Heliconius, Latr. 

 Polymnia, to which the name is now restricted, is second in a 

 series of five or six types mentioned, and has no special claim to 

 the name. 



Genus Hesperia. — A very heterogeneous genus ; but the types 

 are Lycfenidso. It would be most correct to apply the name to 

 Myrina, Auct. The type of Myrina, Fab., is Alcides. 



Genus Ltojsna. — Also very heterogeneous. In 1815 Leach 

 restricted the name to the Coppers and Bliies. We have seen 

 that the latter are really typical of Polyommatus, Latr. ; and 

 therefore Stephens and the other English authors are justified in 

 retaining Lyccena for the Coppers. Hiibner's name Ghryso- 

 phanus, published in 1816, is subsequent to Leach's restriction 



