HENRY J. FRANKLIN. 287 



Thorax. — Anterior part of dorsum, back to the bases of the wings, 

 covered with whitish pile ; a broad black band between the bases of 

 the wings, the black pile of this band having, however, in many speci- 

 mens, a more or less strong admixture of whitish hairs, especially on 

 the sides ; surface of dorsum, in the middle of this band, bare of pile, 

 impunctate and shining. Scutellum densely covered with tawny yel- 

 low pile. Upper portions of mesopleura covered with whitish pile, 

 this being continuous with the pile of the same color on the anterior 

 part of the thorax above ; remainder of pleura bearing only dark pile. 



Abdomen. — First five segments densely covered above with tawny 

 yellow pile ; apical segment black, except at very tip where it is slightly 

 rusty. Venter dark, for the most part, but with the apical margins of 

 all, except the first and last segments, fringed very noticeably with 

 whitish hairs. Hypopygium with a distinct median carina on its apical 

 third. 



Wings. — Strongly stained with brown ; fore wings evenly colored 

 throughout for most part, darkest on apical halves of median and sub- 

 median cells and on anterior and apical portions of radial cell. 



Legs. — Trochanters sometimes all black, but the middle and hind 

 pair usually bearing more or less whitish hair intermixed with the 

 black ; fore coxae also often with a little light pile. Fore femora usu- 

 ally all black ; middle and hind femora as a rule bearing only black 

 pile, but often with more or less whitish hair on the lower sides of 

 their basal halves. Fore and middle tibiae all black, except their tips 

 on the outer sides, which are rusty ; corbicular fringes of hind tibiae 

 black. Posterior metatarsi of medium width and bearing only short 

 spines and very short hair or pubescence. 



Worker. — Much like the queen. Many specimens with considerable 

 whitish pile on sides of head behind the eyes. Labrum usually with 

 translucent spots absent. Wings, as a rule, somewhat lighter than in 

 queen. 



Male. Head. — Pile of face like that of queen, but sometimes with a 

 strong admixture of black hairs ; a little patch of hair at the upper 

 end of each eye black ; sides of head, behind the eyes, sometimes with 

 only dark pile, but usually with more or less whitish hair ; occiput 

 with pile as in queen. Labrum slightly bituberculate ; malar space 

 between one-third and one-half as long as the eye ; clypeus usually 

 pretty well covered up with pile, finely punctate for most part, front 

 portion of disc smooth and shining ; middle segments of flagellum of 

 antennae sometimes slightly arcuate ; fifth segment slightly longer than 

 the third, the fourth much shorter than either (fig. 25). 



Thorax. — Coloration much like that of queen, but the mesopleura 

 covered with whitish pile to bases of legs ; metapleura and sides of 

 median segment often covered with black, but usually with whitish 

 pile. 



Abdomen. — First five dorsal segments densely covered with tawny 



TRANS. AM. ENT, SOC, XXXVIII. 



