Family ARCTIID^E. 



A family of moths mostly of nocturnal or crepuscular habits 

 and with narrow elongate fore wings, or in some genera with 

 short broad wings ; whilst Nyctemera and its allies are diurnal and 



Fig. 1. Larva of Philagria entella. {. (From Hmpsn. 111. Het. ix, 

 pi. 175, fig. 8.) 



have ample wings. Palpi usually short and porrect. Frenulum 

 present. Fore wing with vein 1 a separate from 1 b ; 1 c absent. 

 Hind wing with veins 1 a and 1 b present ; 1 c absent ; vein 8 arising 

 from 7 generally at or beyond the middle of the cell. 



Larva with all the prolegs present, clothed with hairs, and 

 forming a cocoon. 



Key to the Subfamilies. 



a. Thorax and abdomen stoutly built 1. Arctiinw. 



b. Thorax and abdomen slender. 



'. Eore wing without tufts or lines of raised 

 scales. 



". Fore wing not produced at apex 2. Lithosiince. 



b". Fore wing slightly produced at apex . . 3. NycUolince. 

 b'. Fore wing with tufts or lines of raised 



scales 4. Nolince. 



Subfamily ARCTIIN^E. 



A thickly-built section of the Arctiidce comprising the " Ermine " 

 and "Tiger" moths and their allies. Proboscis often absent or 

 very minute. The retinaculum of the male consists of a strong 

 bar from the costal nervure of fore wing instead of the usual tuft 

 of hair, and by this character those species which approach the 

 Noctuidce in the structure of vein 8 of the hind wing can be dis- 

 criminated. The legs are usually smooth and the spurs minute. 



Larva with five pairs of prolegs and clothed with very long hair, 

 which it spins into the cocoon. 



VOL. II. B 



