10 HAWK-MOTHS OF THE VICINITY OF NEW YORK CITY 
in May and June and again in July and August. It is closely 
allied to H. thysbe var. ruficaudis, but differs therefrom by its 
smaller size and by having a red stripe on each side of the 
thorax beneath, and three rows of white spots on the under side 
of the abdomen. It flies during the day in the sunshine. 
5. Hemarts dtffints. 
In the immediate vicinity of New York this species is very 
rare. It is found from Canada to Florida, and westward to Mis- 
sourtand Iowa. In certain localities it is rather common. Found 
during the latter part of May and early in June and again during 
July and August. It flies during the day in the sunshine. The 
caterpillar feeds on snowberry (Symphoricarpus), feverwort 
(Triosteum perfoliatum) and bush-honeysuckle. Forms a pupa 
on the ground in a loose cocoon. 
6. Hemaris axillaris. 
Very rare in this vicinity, but more abundant in the Western 
States. It is found from New York to Texas. In general ap- 
pearance it resembles H. dzfjinis, but the outer border of the fore 
wing is broader, and is more or less toothed inwardly, while in 
diffints it is even. The body is longer. The moth flies during 
the day in the sunshine. The caterpillar feeds on different 
kinds of honeysuckle. Forms a pupa in a loose cocoon on the 
ground. 
