92 [J ULY 
body is more elongate and not so compact as that of the latter species, 
and the color is much brighter. 
6. B. bimaculatus n. sp. 
Male. Head black, mixed with yellowish on the face and vertex. 
Thorax honey-yellow. Wings sub-hyaline, slightly stained with yellow¬ 
ish. Legs black, clothed with yellowish hair, especially on the femora 
beneath. Abdomen with the whole of the first segment above, and 
the second, except a few black hairs on the middle and a round black 
spot on each side, pale honey-yellow ; the fourth segment mixed with 
black and yellow; the third and apical segments black. Beneath yel¬ 
lowish hairy. Length lines. 
Female and worker unknown to me. 
One specimen. Connecticut (Coll. Mr. E. Norton.) 
7. B. Hudsonicus, n. sp. 
Male. Head with a tuft of yellow hairs in front and on the vertex. 
Thorax above and beneath yellowish. Wings subhyaline. Legs black, 
femora beneath clothed with yellowish hairs. Abdomen with the first 
three segments yellowish above; the remaining segments black, the 
two apical segments having a mixture of pale hairs. Beneath sparsely 
clothed with yellowish hairs. Length 7 lines. 
Female and worker not seen. 
Two specimens. Hudson’s Bay Territory. (Coll. E. Norton.) 
8. B. pallidus n. sp. 
Female. Head black, with fuscous hairs at the insertion of the an¬ 
tennae and on the vertex. Thorax above and beneath pale ochraceous, ^ 
shading into pale fuscous posteriorly. Wings dark fuscous, tinged with 
violaceous. Legs black, thickly clothed with short pale hairs; tarsi 
pale, inner side of basal joint golden in certain lights. Abdomen above 
pale ochraceous, base of the first, and the three apical segments shaded 
into pale fuscous. Beneath black, sparsely clothed with short pale hairs. 
Length 11 lines. 
Worker and male not seen. 
One specimen. St. Louis, Mo. (Coll. E. Norton.) 
In taking a dorsal view of this singular species, with the head turned 
from us, the upper surface of the thorax behind the insertion of the 
wings, the base of the first, and the three apical segments of the ab- 
