324 



INJURIOUS INSECTS 



THE ABBOT SPHINX 



{Thyreus Abbotii, Swainson.) 



This is another of the large Grape-feeding insects, oc- 

 curring on the cultivated and indigenous vines and on 

 the Virginia Creeper, and having, in the full grown 

 larva state, a pohshed tubercle instead of a horn at the 

 tail. Its habitat is given by Dr. Clemens, as New York, 

 Pennsylvania, Georgia, Massachusetts, and Ohio; but 

 though not so common as the Sphinx Moths already 

 described, yet it is often met with both in Illinois and 



Fig. 141.— THE AiBOT SPHINX (Thyreus Abbotii, Swain.) 

 Larva and Moth. 



Missouri. The larva which is represented in the upper 

 part of figure 141 varies considerably in appearance. 

 Indeed, the ground-color seems to depend in a measure 

 on the sex, for Dr. Jlorris describes this larva as reddish- 

 brown with numerous patches of light-green, and express- 

 ly states that tlie female is of a uniform reddish-brown, 

 with an interrupted dark-brown dorsal line and trans- 

 verse strife lines. We have reared two individuals which 



