410 



Say^s Descriptions of 



\ 



^ Body black : hypostorna yellow and with yellow 

 hair: antennce with the inferior longritudinal half of the 

 basal joint yellow, and with dense yellow hair : nasus 

 yellow, with yellow hair : hhnim black, covered by the 

 hair of the nasus : mandibles with a yellow oval spot at 

 base and a slender obsolete one near the tip : maxillae 

 with an obsolete yellowish spot before the palpi : palpi 

 with a few rigid hairs ; terminal joint one third the length 

 of the preceding joint : tongue ferruginous : vertex in the 

 middle, having a few yellow hairs : thorax with dense, 

 long, yellow hair : wing-scale blackish : wings with a 

 slight dusky tint ; nervures black, exterior recurrent ner- 



F 



vure entering the outer cubital cellule directly opposite to 

 the outer nervure of the cellule : tergum hairy ; hairs 

 black, rather long ; a few yellow hairs towards the middle 



Length half an inch. 

 Sent to me by Mr. B 



feet 



fi 



Barabino. Differs from the abrup- 

 ta. Nob. in being le^s robust, the hair of the thorax being 



pale yellow, and the mandibles having a white spot near 

 their tips. 



3. A. taurea. Thorax pale, with a dusky central 

 spot, from which proceed two lines to the anterior angles. 



Inhab, Indiana. 



Body black with whitish cinereous hair : head, hair on 

 the vertex dusky : thorax with whitish hair ; a large, 

 obvious, central, dusky spot, with a line curving from it 

 to each anterbr angle of the thorax : scutel, hair dusky : 

 metathorax and first segment of the tergum, with cine- 

 reous hair ; remaining segments of the tergum with the 

 hair very short and black, excepting on the posterior 

 margins which are pure white ; Q ultimate segment with 



