HENRY J. FRANKLIN. 379 



antenna about twice as long as the scape ; third antennal segment 

 much longer than the fifth, the fifth somewhat longer than the fourth. 



Thorax. — Dorsum covered with a mixture of dark and light pile, 

 the light predominating on the front part and the dark predominating 

 between the bases of the wings and on the scutellum (the center of the 

 disc often bearing a noticeable amount of ferruginous pile) ; the very 

 center of the disc naked, smooth and shining. Mesopleura sometimes 

 entirely covered with light yellow pile to the bases of the legs, but usu- 

 ally with their lower parts more or less dark. Metapleura dark, but 

 usually with some yellow pile at their upper ends. Sides of median 

 segment with little or no light pile. 



Abdomen. — Dorsum: segment one clothed for the most part with 

 yellow pile, the very middle rather sparsely clothed and sometimes 

 with a few dark hairs ; segment two clothed entirely with yellow pile, 

 except for a few black hairs usually present in the middle, especially 

 at the base ; segment three often entirely black, but often with a more 

 or less noticeable apical fringe of yellow hairs ; segment four some- 

 times entirely black, but usually with more or less whitish-ferruginous 

 hair on its apical portion ; segment five entirely clothed with whitish- 

 ferruginous pile, sometimes with some black hair on the basal por- 

 tion ; segment six bearing mostly whitish-ferruginous pile, but some- 

 times with some short black hair in the middle. Venter mostly black 

 toward the base, but the apical margins of most of the segments usu- 

 ally fringed more or less with light hair. 



Wings. — Only slightly stained with brown ; the fore pair usually 

 somewhat the lightest across their middle portions. 



Legs. — Coxae and trochanters always with more or less light pile ; 

 femora sometimes entirely dark and sometimes with considerable light 

 pile on the lower sides of their basal portions ; anterior tibiae mostly 

 dark, but sometimes with a few ferruginous hairs ; middle tibiae some- 

 times entirely dark, but usually with considerable ferruginous hair on 

 their outer sides ; corbicular fringes occasionally only slightly ferru- 

 ginous, but usually very strongly so. 



Worker .—yinch like the queen, but the face usually with the dark pile 

 strongly predominant, the light pile being distinctly noticeable only 

 with a lens ; the corbicular fringes usually mostly or entirely dark ; 

 the fifth dorsal abdominal segment often partly and sometimes entirely 

 dark ; venter usually mostly dark ; coxae and trochanters sometimes 

 entirely dark ; fore and middle tibiae very often entirely dark, usually 

 with but very little ferruginous pile. 



Male. Head. — Rather elongate triangular. Face, occiput and the 

 cheeks usually with pure yellow pile, but often with a slight admix- 

 ture of black hairs. Malar space much longer than its width at apex, 

 fully one-fourth as long as the eye. Clypeus pretty well covered up 

 with yellow pile. Flagellum of antennae about three times as long as 



TRANS. AM. ENT. SOC, XXXVIII. 



