HENRY J, FRANKLIN. 109 



Abdomen. — Dorsum : segments one, two and three black and with 

 black pile (one specimen has a few ferruginous hairs on the middle of 

 the first segment); segments four, five and six bearing ferruginous-red 

 pile. Venter mostly dark, but with the apical fringes of the three api- 

 cal segments ferruginous. 



Wings. — Very dark, with violaceous reflections. 



Z-^^5.— CoxEe, trochanters, femora and tibiae dark and with dark pile. 

 Hind metatarsi about as in fervidus. 



Worker. — Like the queen. 



Male. Head. — Shaped like that of fervidus male — elongate triangu- 

 lar. Dark and with dark pile. Malar space distinctly longer than its 

 width at apex, about one-fourth as long as eye. Clypeus about as in 

 fervidus male. Flagellum of antenna fully four times as long as 

 scape ; fifth antennal segment much longer than third, third slightly 

 longer than fourth ; all antennal segments between third and apical 

 more or less noticeably arcuate. 



77/(3ra.i-.— Clothed with black pile. 



Addomen.— Dorsum : segments one, two and three with only black 

 pile ; segment four either with the basal two-thirds black and the api- 

 cal third light ferruginous or entirely covered with light ferruginous 

 pile ; segments five, six and seven clothed with light ferruginous pile. 

 Venter mostly dark, but with the apical fringes of the three apical seg- 

 ments more or less ferruginous. 



Genitalia. — Outer spatha (fig. 148) with hind margin broadly out- 

 curved and evenly continuous with side margins ; the front margin 

 deeply and evenly incurved, the anterior lateral corners evenly rounded ; 

 the ventral surface, as a rule, only sparsely hairy. Inner spatha much 

 like that of fervidus (fig. 101), but with hind margin of apical por- 

 tion curving broadly outward in the midde. Claspers (fig. 171 and, 

 fig. 196) in general much like those of fervidus and pennsylvafiicus, 

 but readily separated from those of those two species by the strong 

 ridging on the middle of the inner side of the ventral surface of the 

 volsella and by the angular form of the inner side of the apex of the 

 branch as seen from the dorsai side. Sagittae much like those of fervidus, 

 but with the head strongly toothed on the outer side of its basal por- 

 tion (strongly resembling dahlbomii 'm this respect). Uncus moder- 

 ately broad and tapering gradually to a narrow, rounded, recurved 

 apex. 



Wings. — Somewhat lighter than those of the females. 



Legs. — Coxae, trochanters, femora and tibiae all dark and with dark 

 pile. Outer faces of hind tibiae convex and hairy (sparsely so toward 

 distal end); their fore and hind fringes very short. Hind metatarsi 

 with no long hind fringes ; their outer faces distinctly concave and 

 with rather sparse pubescence. 



Dimensions. — Length: queen, 18 mm. to 23 mm. ; worker, 15 mm. 



TRANS. AM. ENT. SOC, XXXIX. 



