HENRY J. FRANKLIN. 351 



Male. Head. — Face and occiput largely covered with yellow piles 

 the former very often with black hair more or less admixed ; cheek, 

 largely covered with yellow pile, this usually connecting more or less 

 with the yellow on the occiput. Malar space distinctly longer than 

 its width at apex, between one-fifth and one-fourth as long as the 

 eye. Clypeus pretty well covered up with yellow pile. Flagellum of 

 antenna about three times as long as the scape ; fifth antennal seg- 

 ment slightly longer than the third, the third distinctly longer than 

 the fourth. 



Thorax. — Much like those of the females. 



Abdomen.— Dorsum with the first two segments entirely covered with 

 yellow pile and with the remaining segments entirely black, except 

 usually some yellow pile on the extreme sides of the fifth and sixth 

 segments ; venter usually with some black hairs, but mostly clothed 

 with yellow pile. 



Genitalia.— OxxiQV spatha (fig. 131) with anterior margin broadly 

 and somewhat deeply incurved, side margins more or less incurved; 

 hind margin broadly rounded, central portion of ventral surface more 

 or less reticulated, each side of the apical portion of the ventral sur- 

 face with a scattering tuft of rather long hairs. Inner spatha (fig. 105) 

 with sides of front margin straight and slanting backward, the side 

 margins strongly incurved : the apical portion rather narrow at the 

 end and with straight or outcurved hind margin, apical portion of 

 ventral surface bearing rather dense hair of medium length, an elon- 

 gate median fenestra present behind the center. Claspers (figs. 64 

 and 67) as already described for the group ; volsellae very slender ; 

 squamae triangular in outline, but their margins somewhat outcurved. 

 Sagittae usually with nearly straight shafts, sometimes, however, with 

 them bent considerably in the middle. 



Wings. — Distinctly lighter than those of the queen ; subhyaline. 



Legs.-Qonad, trochanters and femora all with considerable yellow 

 pile on their lower sides ; fore and middle tibise sometimes entirely 

 dark, but usually with a few ferruginous hairs on the hind sides ; hind 

 tibise with outer faces convex and largely naked, especially on the 

 distal half; corbicular fringes usually black, but sometimes rather 

 strongly tinged with ferruginous, the front fringes being rather short ; 

 posterior metatarsi with rather short and more or less ferruginous hind 

 fringes. 



Dimensions. — Length: queen, 13 mm. to 17 mm. ; worker, 7 mm. 

 to 13 mm. ; male, 10 mm. to 14 mm. Spread of wings: queen, 27 

 mm. to 35 mm. ; worker, 16 mm. to 27 mm. ; male, 24 mm. to 28 

 mm. Width of abdomen at second segment: queen, 7^ mm. to 9| 

 mm. ; worker, 4 mm. to 7^ mm. ; male, 5^ mm. to 6| mm. 



Redescribed from numerous specimens of all castes, one 

 of the queens being a homotype of consimilis Cresson. 



TRANS. AM. ENT. SOC, XXXVIII. 



