! 



North American Hymenoptera. 



Var, j9. Thorax and abdomen entirely black* 

 Length three twentieths of an inch. 

 This insect is common. 



211 



Hflotoma, Latr. 



1, H* scutellata. Fulvous; head and thorax, except- 

 ing the humerus and scutel, blackish. 



Inhabits United States. 



M 



$ Bod*/ reddish-yellow : head blue-black : thorax 

 blue-black ; each side before the wings, including the 

 superior portion of the pleura, reddish-yellow : scutel 

 elevated, bright reddish-yellow : metathorax with two 

 oblique, oblong, white spots : wings dusky violaceous : 

 pectus, neclc^ incisure of the stethidium (and feet?) 

 blue-black : anal segment at tip black. 



Length nine twentieths of an inch. 



I do not remember in what part of the Union I found 

 this species. The feet in the specimen are mutilated. 



2. H. calcanea. Blackish ; thorax yellow ; tarsi 



whitish at base. 



Inhabits LTnited States. 



Violaceous black: thorax, with the anterior superior 

 portion of the pleura yellow ; suture of the anterior seg- 

 ment, or collar, blackish : wings dusky violaceous : tarsi 



at base white. 



Leno-th less than seven twentieths of an inch. 



o 



I have also lost the particular locality of this species. 

 They do not correspond w^ith either of the species de- 

 cribed by Dr. Leach. 



