HAWK-MOTHS OF THE VICINITY OF NEW YORK CITY 



31 



48. Cressoiiia juglandis. 



Not rare in this vicinity. Double-brooded. The first brood 

 appears in June and the second in August. The species is sub- 

 ject to considerable variation ; some specimens are uniformly pale 

 fawn color or ochraceous, with the transverse lines distinct, while 

 other examples are more or less covered witli dark brown so as 

 to almost obscure the ground color and transverse lines. It is 

 found from Canada to Florida and westward to the Mississippi 

 and Texas. The caterpillar feeds on walnut, butternut, hickory 

 and iron wood. Enters the ground to pupate. 



