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 catalpoe. 



A southern species gradually extending its range northward. 

 It is exceedingly common in the vicinity of Philadelphia, where 



