164 AMERICAN HYMENOPTERA. 



shorter than either. Ocelli placed in narrowest part of vertex, at less 

 than one-third of the distance from the supra-orbital line toward the 

 bases of the antennae, the lateral ones being separated from the mar- 

 gins of the eyes by about their own diameters. Eyes noticeably, but 

 not greatly, swollen. 



Thorax. — Coloration of pile as in queen and worker. 



Abdomen. — Dorsum : segment one rufo-ferruginous ; segments two 

 and three with mostly black pile, but with a considerable admixture 

 of rufo-ferruginous hair on their middle portions (all but the extreme 

 sides have some reddish hairs admixed); segments four and five 

 mostly rufo-ferruginous, but with some black pile on their extreme 

 sides ; segments six and seven mostly dark, but with more or less red- 

 dish or cinereous hair toward their sides. Venter mostly dark, but 

 with the apical fringes of most of the segments long and mostly pale 

 reddish or whitish in color. Hypopygium distinctly emarginate at 

 apex. 



Genitalia. — Outer spatha (fig. 152) very short and wide, the front 

 margin being deeply incurved and the side margins rather irregularly 

 outcurved ; apical portion with an angular projection on each side, 

 the margin between these projections being somewhat incurved ; each 

 side of the hind portion with a broad reticulated area. Inner spatha 

 much like that of separatiis (fig. 127), but with front margin of ante- 

 rior median projection more thickly chitinized. Claspers (figs. 186 and 

 195) long and not very stout, the branches, as seen from dorsal side, 

 appearing strongly quadrate at apex. Volsellae without noticeable pro- 

 jections on their inner sides, except the prominent, square-ended, elon- 

 gate, and rather narrow apical projections ; with a large amount of hair 

 present on nearly all portions, as seen from ventral side, this hair 

 being very noticeably long on the outer sides of their apical portions. 

 Squama very strongly bilobed, both lobes being unusually long and 

 slender ; the outer lobe enlarged somewhat in its apical portion and 

 with a noticeable tooth-like projection on the outer side of this portion, 

 but with its very apex pointed ; the inner lobe elongate-triangular in 

 form, with its round-pointed apex reaching mesad far beyond the inner 

 margin of the volsella. Sagittae with very long shafts, the heads reach- 

 ing slightly beyond the apices of the volsellae and having a prominent, 

 though slender, tooth-like projection on the inner side of each, their 

 rather narrow apices being recurved ventrad somewhat. Uncus long 

 and only moderately broad even toward the base. 



Wings. — Usually somewhat lighter than those of worker; light brown, 

 with outer portions almost transparent. 



Legs. — Coxae, trochanters, and at least the basal portions of the 

 femora largely clothed with cinereous or ferruginous hair (at least on 

 their lower sides). Tibiae all dark. Outer faces of hind tibiffi slightly 

 convex and almost completely naked, the fringes on apical third being 



