HAWK-MOTHS OF THE VICINITY OF NEW YORK CITY 31 
48. Cressonia juglandts. 
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 with 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 ironwood. Enters the ground to pupate. 
