376 APPENDIX. 



HEMERODROMIA, Hgg. 



H. siiperstitiosa. Whitish ; thorax with a broad, black- 

 ish-brown vitta ; tergum with a broad black vitta, which is 

 crenate on its edges. 



Inhabits North-west Territory. 



^ntennse, proboscis, and front white ; occiput and in- 

 ferior jJcirt of the head blackish-brown, in some parts 

 slightly sericeous ; eyes chesnut-brown ; thorax with a 

 broad vitta, which is paler in the middle and occupies the 

 greater portion of its surface; loings hyaline; poisers 

 white ; scutel dusky, with a paler margin ; tergum, the 

 broad vitta is very deeply crenated on its edges, and is 

 often separated into a series of large spots by the incisures ; 

 beneath white. 



Length nearly three-twentieths of an inch. 



This species is very closely allied to the H. oratoria, 

 Fall. The disposition of the nervures is the same with 

 those of that species, but the oratoria is said to have only 

 a line on the thorax in place of a vitta, to have the abdo- 

 men all dark brown, and the tip of the posterior tibia 

 brown. 



SARGUS, Latr. Meig. 



1. S. decorus. Front blue ; thorax green; tergum greenish 

 golden ; feet pale yellow. 



Inhabits Pennsylvania and East Florida. 



Hypostoma and vertex blackish; proboscis yellow; an- 

 tennae dusky yellowish, third joint ^^x\ex\ frontal tuber- 

 cles with a white reflexion; wing dusky, stigma distinct; 

 poisers pale ye\\o^w•, pleura blackish-piceous;yee/ yellow ; 

 posterior tarsi dusky ; abdomen slender, widest at tip, gra- 



