310 Col. C Swinhoe on the Geographical 



pays, "I am thinking much of the Gnaihos \\\ your !Noctna3 ; 

 tliis forms quite a feature, locates them in the direction of the 

 Geon)etra^, removes tiiem from the bulk of the Noctuae, and 

 it is remarkable that the species which occur in Britain should 

 be so selected that all (except Brephos) should lack this 

 feature." 



The examination of the genitalia divides all those that have 

 been dissected into six groups, as follows : — 



1. Cosmophila erosa, Hubner, Zutr. Samral. exot. Schmett. 



ii. p. 19, figs. 287, 288 (1810). 



Hab. America. 



Valves wide compared with length. 



Harp>e soft and spined. 



Costal arms very thin, scale-like. 



Anellus^, lateral arms smooth, not knobbed. 



Coremata very small and slight, single. 



Penis short and broad, cornutus delicate. 



Tlie stiffening of the eighth abdominal segment very slight. 

 (PI. IX. fig. 1.) 



Caracas, Venezuela, Jalapa (Mexico), Newcastle (Jamaica), 

 Sapucay (S. America). 



2. Cosmophila xanthindyma, Boisd. Faun. Ent. Madagascar, 



p. 91:, pi. xiii. fig. 7 (1833). 



Cos7nophila awaffoides, Guen, Noct. ii. p. 397 (1852). 



Harpe well developed on valve, rigid. 

 Costal arms not evident. 



Anellus very pronounced, lateral arms solid, rigid, knobbed. 

 Coremata very voluminous, single. 



Penis long and narrow, cornuti scarcely evident. (PI. IX. 

 figs. 2, 3.) 



Dar-es-Salam, Karachi. 



3. Cosmophila edentata. Walker, xi. p. 750 (1857). 



llarpe soft and spined. 



Costal arms rigid, slightly hooked. 



• Passage through which the penis passes. 



