230 Say^s Descriptions of 



$ Hypostoma and mouth yellow : feet with the thighs 

 at base and tip, tibice at tip and base of the joints of the 

 tarsi dull yellowish. 



Length from nine twentieths to three fifths of an inch. 



May be distinguished from hreviclnctor^ unifasciato- 

 TiuSy and ottosusy Nob. by its black scutel ; and from 

 mdrulus and malacusj Nob, by having a yellow line be- 

 fore the wings. I have found it in Pennsylvania, Indiana 

 and Louisiana. 



9. I. devindovy Nob. (Amer, Entom* vol. IL) 



It varies in having the scutel black and the feet en- 



r 



tirely black. 



Another variety has the tibiae and tarsi ferruginous* 

 My largest specimen was sent to me by Dr. Harris. 



10. 1. duplicdtus. Black ; abdomen rufous ; meta- 



thorax with yellow marks. 

 Inhabits Indiana. 



? Body black : hypostoma, palpi and orbits yellow : 



antenn<B with a whitish annulus beyond the fifteenth 



joint : thorax with the dorsal impressed lines not deep, 



I 



and extending from the middle to the anterior margin ; a 

 yellow hne before the wings ; wing-scale dull yellowish : 

 scutel bright yellow, a little convex : wings slightly 

 tinted with fuliginous ; stigma dull honey-yellow ; second 

 cubital cellule four-angled ; the recurrent nervures with 



dight processes : metathorax with a large yellow W be- 

 hind, and a yellow spot at tip of the scutel : tergnm 

 rufous ; second segment not distinctly excavated at base 

 each side j first segment as long as the second, slender, 

 black at base and tinged with yellow at tip : coxce having 

 a yellow spot : thighs black, the two anterior pairs varied 

 with yellowish towards the tip : tihi(£ yellow ; anterior 

 pairs having a black line behind ; posterior pair black at 



