HENRY J. FRANKLIN. 125 



front part of dorsum, to somewhat below level of bases of wings ; 

 mesopleura otherwise entirely dark. Metapleura and sides of median 

 segment entirely dark. 



Abdomefi. — All black, except third dorsal segment. This segment 

 clothed, for most part, with yellow pile, but its very basal portion usu- 

 ally with yellow replaced somewhat by very short black hairs. 



Wings. — Dark and usually with strong violaceous reflections. 



Legs. — Entirely dark. Hind margin of posterior metatarsi usually 

 rather suddenly arcuate near the base, but nearly straight throughout 

 the greater part of its length. 



Worker. — Like queen, but with malar space but little, if any, more 

 than one-fifth as long as eye. Short black hair usually not showing 

 on basal portion of third dorsal abdominal segment. Black interalar 

 band sometimes not more than half as wide, from front margin to rear 

 margin, as long, from wing base to wing base. 



Male. Head. — Face clothed with mostly cinereous pile (this pile is 

 made up of a mixture of long dark hairs and shorter whitish pile or 

 down) , this clothing being darkest above the bases of the antenna and 

 lightest over the clypeus. Occiput either bearing a mixture of dark 

 and yellow hairs or with a triangular patch of pure yellow pile, this 

 patch being extended, on each side, along the hind margin of the 

 head, down onto the sides somewhat, behind the upper ends of the eyes. 

 Ventro-lateral portions with a slight sprinkling of yellow hairs. Malar 

 space somewhat shorter than its width at apex, about one-fifth as long 

 as eye. Clypeus mostly covered up with dirty whitish pile, there being 

 only a scattering of dark hairs admixed. Third antennal segment dis- 

 tinctly shorter than fourth, the fifth much longer than the fourth. 



Thorax. — Coloration of pile much like that of females, but with the 

 yellow pile sometimes reaching down, from the front part of the dor- 

 sum, on the mesopleura, as much as half the distance from the bases 

 of the wings to the bases of the legs. Each side of metanotum bear- 

 ing a tuft of yellow pile just behind the base of the hind wing. Inter- 

 alar band about half as^wide as long. 



Abdomen. — Dorsum: segmentsjone and two entirely black ; segment 

 three clothed entirely with yellow ; segment four with basal portion 

 covered with yellow and apical portion with black pile ; segments five 

 and six entirely black ; segment seven with some short black hairs on 

 basal portion and on middle of apical portion, but otherwise clothed 

 with ferruginous pile. Venter mostly dark, but the apical margins of 

 most of the segments fringed with pale ferruginous pile, the apical 

 fringe of the hypopygium being rather strongly ferruginous. 



Geiiitalia (figs. 162 and 163). — Much like those of niexicantis (figs. 

 160 and 164), but with apices of branches distinctly angled on their 

 inner sides, as viewed from above ; outer margin of head of sagitta 

 distinctly serrate ; outer lobe of squama well developed and rather 

 pointed at apex. 



TRANS. AM. ENT. SOC, XXXIX. 



