HAWK-MOTHS OF THE VICINITY OF NEW YORK CITY 



29 



44. SmerintJiiis gcniiiiatus. 



A common species in this vicinity. It is double-brooded, the 

 first brood appearing in June and July, and the second in August. 

 The moth varies from light to dark gray on the fore wings. 

 Found from Canada to Virginia and westward to Iowa. The 

 caterpillar feeds on willow, poplar, plum, apple, elm, ironwood, 

 hazel, hornbeam, birch, ash etc. Enters the ground to pupate. 



45. Smerinthus exccBcatus. 



Common in this neighborhood. Double-brooded, appearing 

 in June and July and again in August. It is found throughout 

 the eastern United States and Canada. The caterpillar feeds on 

 chcrn,^ plum, apple, pear, raspberry, rose, elm, oak, hazel, horn- 

 beam, ironwood, birch, willow, poplar, ash etc. Enters the 

 ground to pupate. 



