()() Mr. Crotch un IIk frenrric 



tions, tlie name of our Ijlue 1 nitterilies. They were comprised 

 by Linna?us in the sul)-geniis Plcheius^ and F. argus was 

 selected by Cuvier as the tyjiical species in 1799 ; the 

 same gron2J was variously styled Oupido (Sehraiik, 1801), 

 Polyommatus (Latr., 1805), Lyctena {Fahr., 1807), Zepliyrus 

 (Balm., 1816); all four of which names are therefore co- 

 extensive (though not co-typical), and if revived, which 

 appears to me undesirable, they must l)e quoted from some 

 later author. 



1735. Linnreus (Syst. Nat. Ed. i.) grouped all our Lepidop- 

 tera in tlie genus Fapilio (typ. P. Machaon, Ciiv. 

 1799). 



1748. Linnreus (Syst. Nat. ed. vi.) separated the nocturnal 

 species under the title Fhalccna. 



1758. Linna?us (Syst. Nat. ed. x.) separated the crepuscular 

 species under the title Si^hinx. He also sub- 

 divided his genus Fapilio into six sub-genera, 

 whose names have been accepted, and, as I con- 

 ceive rightly ; for Linnseus always used them 

 sub-generically, speaking of Fajnlio Danane Bras- 

 sica'. These are — 



A. Equites. This has been always (except by 

 Geoffroy and Schrank) considered the typical 

 stirps. 



B. Heliconius, type H. Psidii, Lam. (1801). 

 c. Dana.us, type D. Brassiere, Cuv. (1799). 



D. NymphaJis, type N. atalanta, Lam. (1801). 



E. Flcheius, type P. argus, Cuv, (1799). 



F. Farharns, a heterogeneous group which has 

 not since been accepted. 



The type of the genus Sphinx is, according to La- 

 marck (1801), S. convolvuli. Latreille' (1805), 

 figured S. atrojws as its type, which was sepa- 

 rated by Ochsenheimer (1816). 



The genus Fhalwna id also sub-divided into seven 

 sub-genera : — 



A. Bomh/x. Cuvier (1799) and Lamarck (1801) 

 divide this into three sections, whose types are 

 F. j^'^'oonia, B. dispar, and B. mori ; Schrank 



