EUCHROMIA. 107 



at the extremity; the cells are partly divided, and much 

 narrowed towards the base. There are two sub-median 

 nervures on the fore-wings and three on the hind-wings ; in 

 the latter, the costal nervure is more or less obsolete. The 

 nervules beyond the cells are frequently much arched. They 

 are day-flying insects, measuring an inch or less across the 

 wings. The larva of one small brown species with an orange 

 collar (Acoloithus falsarius, Clemens) feeds on the leaves of 

 the grape and the Virginian Creeper in the United States, and 

 the pupa-state, which lasts a fortnight, is passed within a 

 parchment-like cocoon. 



SUB-FAMILY VII. EUCHROMIIN^. 



This Sub-family contains the greater portion of the Tropical 

 Zyganida. Many of them are of large size for the Family, 

 measuring an inch and a half or two inches across the wings, 

 which, as well as the bodies of the Moths, are often adorned 

 with the richest colours. 



Other species are brilliantly metallic, while others again have 

 transparent wings, and resemble Hymenoptera, though less 

 so than is the case in the ^geriidce, a Family which we shall 

 discuss in a later volume, and to which our " Clear- wings " 

 (with the exception of the Bee Hawk Moths) belong. One or 

 two representatives of this Sub-family are here figured and 

 described. 



The larva is clothed with long tufts of hair, almost like those 

 of the Liparidce; and the pupa is enclosed in a stout silken 

 cocoon. 



GENUS EUCHROMIA. 



Enchroima> Hiibner, Verz. bek. Schmett, p. 121 (1822?); 

 Walker, List Lepid. Ins. Brit. Mus. i. p. 201 (1854) ; 



