North American Hymtnoptera. 



409 



It is smaller, much more slender and much less hairy 

 than either latimdnus^ or jpoUicdrisj Nob. and has a some- 

 what different habit. 



Antiiophoka, Latr. 



1. A. abrujyta. $ Black ; thorax with cinereous 

 hair ; nasus and labrum whitish. 



\ ^ 



Inhab. Indiana. ' 



Body robust : antenjice on the anterior side of the basal 

 joint, whitish : nasus^ and each side of it to the eye yel- 

 lowish, a little tinged with fulvous in the middle : labrum 

 pale yellowish, hairy : mandibles having a whitish spot 

 near their outer base : thorax^ pleura and pectus^ clothed 

 with whitish cinereous hair: wings hyaline; nervures 

 fuscous ; stigma not at all dilated : pleura w ith an oblique 

 line of black hairs passing downward and backward from 

 the posterior wings : tergum with much shorter and less 

 dense hair than that of the thorax, and black ; that of the 

 basal segment a little longer, and near the metathorax par- 

 taking of the color of the hair of that part : feet black ; 

 the longer hairs of the anterior pair are whitish. 



Length over half an inch. 



It is less robust than A. pilipes^ F. and is equally well 

 clothed with hair on the anterior part of the body, but 

 the transition of color between the hair of the thorax and 

 that of the tergum is much more abrupt. It has much 

 the appearance of a small humble-bee and also resem- 

 bles Andrena thoracica^ F. 



/' 



Thorax with yellowish hair; hypos- 

 nC thft antennae beneath, and snot at 



base and near the tip of the mandibles, yellow. 



Louisian 



VOL. I. PART IV. 



53 



