proboscis black : antennx pale yellowish : occiput 

 with very short, greenish-yellow hair: thorax 

 with two distinct obsolete lines : toings reddish- 

 brown : feet yellowish : thighs dark chesnut at 

 base : tergiim and venter 9 dark chesnut, polish- 

 ed, the posterior margins of the segments whitish, 

 and slightly hairy ; S pale testaceous, with short 

 hair. 



OBSERVATIONS. 



This is the only species yet known to inhabit 

 North America. It was brought from Arkansaw 

 by Mr. Thomas Nuttall. 



The upper figure exhibits the appearance of 

 the male, and the lower that of the female. 



PLATE XXXIII. 



