232 LEPIDOPTERA OP NORTH AMERICA. 



3. D. pellucida Abb. Virginiensis Drur. Figured in Smith. & Abbot, p. 



115, pi. 58. 



Kesembles D. sanatoria, but is smaller and more delicate. 



Body ochre-yellow. Superiors of the male purple-brown, with 

 a large colorless transparent space in the middle, near which is a 

 small round white spot, and towards the hinder margin a narrow 

 oblique very faint dusky stripe. Inferiors purple-brown, nearly 

 transparent in the middle, and margined with pale purple. Under 

 side similar. 



Larva rust-yellow ; body pea-green, shaded on the back and 



sides with red ; striped with very pale yellowish-green, and armed 



with black spines. 



United States. 



Harris. 



4. D. rubicunda F. Harris, Ins. of Mass. p. 293. 



Superiors rose-colored, crossed by a broad pale yellow band. 



Inferiors pale yellow. Abdomen and legs rose-colored. 



United States. 



Harris". 



5. D. bicolor Harris, Ins. of Mass. p. 293. 



Upper side of the fore wings and under side of the hind wings 



are brownish-gray, sprinkled with black dots, and with a small 



round white spot near the middle, and a narrow oblique dusky 



band behind it on the fore wings ; the upper side of the hind wings 



and the under side of the fore wings, except the front edge and 



hinder margin of the latter, are crimson-red, and the body is 



brownish-gray. The male expands two inches and a quarter. 



United States. 



Harris. 



BOMBYCIDAE Steph. Bombycina Her.-Sch. 



The difficulty of distributing this family into consistent genera 

 has been acknowledged by all who have studied it. Various sy- 

 nopses have been proposed, but none, as yet, have been generally 

 adopted. Most of them have been founded more or less exclu- 

 sively on the perfect insects, but such cannot stand as the larvae 

 and transformation become better known. 



