Allantus in the United States. 251 



basal segments of abdomen beneath and on sides yellow, 

 above black ; remaining segments rufous; legs yellowish, 

 rufous in part; the anterior femora above, the four poste- 

 rior femora, and all the coxae, black ; a small white spot 

 near base of posterior coxeb ; wings faintly clouded toward 

 tip ; nervures black ; ' stigma piceous ; base and costa white. 



Hab. Northern Illinois (Mr. Kennicott). 



One specimen examined. 



Sp. 30. A. bifasciatus. Say. West. Quarterly Rep., 

 vol. ii. 1, 72, 1823. 9 " Black ; tergum with a white band 

 at base and a rufous one in the middle. 



" Inhabits Arkansas. 



" Body black ; nasus white ; labrum and palpi dull whit- 

 ish ; thorax with a yellowish line before each wing; scutel 

 yellowish ; wings dusky ; nervures brown ; feet white ; 

 tips of the posterior thighs and their tibiae black; tergum 

 with a white band at base and a rufous one on the middle. 

 Length seven twentieths of an inch (9)." 



In Long's Second Exp. vol. ii. p. 317, it is stated that the 

 rufous band is on the fourth segment. 



This species is allied to A. hicinctus (No. 11), and still 

 more closely to A. intermedins (No. 12). I find in the 

 Harris Collection a species called A. medius, (Say,) which 

 is perhaps a variety of the above. The basal joints of an- 

 tennae are black ; head wide, punctured ; thorax coarsely 

 punctured ; clypeus moderately emarginate ; labrum pro- 

 duced, truncate. It differs in having the sides of clypeus 

 and labrum black ; the color of the legs pale yellow ; coxae 

 black, except at tips ; and the tips of four anterior tarsi, 

 and all the toes, rufous black. The wings are faintly 

 clouded, nervures and stigma dark piceous, and basal half 

 of stigma pale. The fourth segment of abdomen is indis- 

 tinctly rufous. "^ 



Hab. New Hampshire. 



Until more specimens can be examined, it will be diffi- 



