CHGEROCAMPA. 171 



CHCEROCAMPA Dop. 



The body in this group is slender, long and tapering. The 

 thorax is smooth, rather short, advanced in front of the base of 

 the anterior wings and tapers on the sides to the head. The head 

 is rather large, prominent and moderately broad; the front smooth, 

 conical and broad ; the eyes moderate and salient ; the palpi 

 ascending to a level with the front ; the tongue extends to the 

 end of the abdomen ; the antenna are short, but longer than the 

 thorax, clavato-prisraatic, terminating suddenly in a short hook 

 and seta. The abdomen is quite long, more than twice longer 

 than thorax, oblanceolate, tapering very much to the tip, which is 

 acute. The wings are narrow, the anterior three times longer than 

 broad across the inner angle, and the length much less than that 

 of the body; the tip very acute, the hind border very oblique and 

 nearly straight or slightly excavated beneath the tip. Hind wings, 

 the tip somewhat acuminated, hind border very oblique, and 

 interior angle well marked. The legs are long and slender, the 

 anterior tibiae hairy, and hind tibiae with four moderate spurs. 



Larva. The head is small and the anterior segments very much 

 attenuated from the third, and retractile; third and fourth swollen, 

 with a large subdorsal ocellus on the latter, followed by a row 

 of ocelli, similar ; eleventh segment with a caudal horn (Abbot fy 

 Smith). The larval transformation takes place in an imperfect 

 cocoon spun on the surface of the ground. 



1. C. tersa Drury. Theretra tersa Hiibner. Chcerocampa iersa. Metop- 

 silus tersa Duncan. Figured in Drury, I, pi. 28, Nat. Libr. vol. 

 xxxvi. pi. 5. 



Palpi pale ferruginous beneath ; head and thorax brownish 

 olive, with a lateral whitish line inclining to roseate on the sides ; 

 tegulse slightly edged above with ferruginous. Abdomen with a 

 broad, dorsal, dusky band, containing five indistinct darker lines 

 and lateral band on each side, rusty yellow. Anterior wings 

 greenish brown, slightly glaucous toward the base, with a minute 

 discal spot, dark brown, and with numerous oblique, alternate, 



