26 



simple in female ; body smooth ; wings largely vitreous, the 

 clear spaces on emergence from the pupa thinly spread with 

 glittering scales which fall on using the wings ; body smoothly 

 scaled. 



Subgenus Hemaris. 



The typical group is colored black and yellow with a 

 red apical stain on forewings on the terminal black band. 

 Type: H. fuciformis. 



Tennis. Grote. The smallest species with the wings 

 full, without or with a hardly perceptible apical stain on 

 terminal band which is narrow and even on its inner edge. 

 Eastern and Middle States and Canada. June, July. Larva 

 on Viburnum. I found the larva on Synvphoricarpus, plenti- 

 fully in the old Catholic burying ground at Buffalo, green 

 with purple black venter and legs, with a rough yellow crest 

 on first segment; it appears to differ by the absence of a 

 dorsal shade from that of d if finis. 



Diffiiiis. Boisd. A little stouter, the apical stain 

 marked, the inner edge of the band finety dentate on inter- 

 spaces. More southerly in its range. May to August. Larva 

 on Bush Honeysuckle, Snowberry, Feverwort. (Fernald.) 



Margiiialis. Grote. Still larger, with the dentation 

 prominent, as also the apical stain. Ohio, southwardly. I 

 figure the differences between these species in the Buffalo 

 Bulletin. The larva is not knowm. 



Axillaris. G. a. R. The dentations are here unequal 

 and very deep, the red apical stain extends downwardly 

 over the nervules as an edging to the band. Ohio to Texas. 

 The specific value of these forms has not been fully proven, 

 nor the young stages compared. 



Subgenus Chamaesesia. Gr. 



Gracilis. G. a. R. Resembles somewhat the European 

 Bombyliformis, the band being of a brown tint. The fore- 

 wings are bordered by brown above, beneath paler, with 



