26 HAWK-MOTHS OF THE VICINITY OF NEW YORK CITY 
— 38. Ceratomia undulosa. 
Rather common and double-brooded in this vicinity, the first 
brood appearing in June and the second in August. It is found 
from Canada to Carolina, and westward to Iowa. The cater- 
pillar feeds on ash, lilac and privet. Enters the ground to 
pupate. 
39. Ceratomia catalpe. 
A southern species gradually extending its range northward. 
It is exceedingly common in the vicinity of Philadelphia, where 
