1863.] 
101 
26. B. Kirbiellus. 
Bomhus Kirhiellus Curtis^ Eoss’ 2nd Voyage, Appdind. p. Ixii. 
Female. PI. A, fig. 2.—Black, a broad margin in front of the 
thorax, hinder margin of scutellum, and the abdomen, excepting the 
third segment and the apex, clothed with long yellow-ochreous hairs; 
wings yellowish, excepting the posterior margin, the nervures piceous; 
inside the tarsi with the pile bright ferruginous; tips of spurs, apical 
joint of tarsi, and base of claws sub-castaneous. Length 10 lines. 
“ Neuter. Similar to the female but much smaller, the hairs beyond 
the black on the abdomen are generally orange, and the whole of the 
tarsi, excepting the basal joint, is sub-castaneous. Length 7 lines. 
“ 3Iale. Black, antennae as long as the thorax, compressed at the 
apex; face and crown of head clothed with long yellow and black 
hairs; thorax yellow with hairs, having a transverse black band be¬ 
tween the wings; basal half of abdomen yellow, the remainder orange, 
with a narrow black band across the middle; wings slightly yellow at 
the costa, the posterior margin slightly stained with brown, nervures 
piceous; basal joint of tarsi clothed inside with bright ferruginous 
hairs; spurs, base of claws, and apex of tarsi ochreous. Length 
lines.’^ 
Arctic America. Unknown to me. 
27. B. polaris. 
Bombus polaris Curtis, Eoss’ 2nd Voyage, Append, p. Ixiii. 
“ Female. Black ; a broad band across the anterior portion of the 
thorax, the scutellum, and abdomen clothed with long yellow hairs, 
whitish towards the apex of the abdomen, with a few black hairs 
on the sides of the third segment, a band of the same color on the 
fourth, and a very slight one on the fifth segment; tarsi clothed with 
black pile internally, the outside of the basal joints brownish, the edges 
ferruginous. Length 10 lines. 
“ Male. Black, clothed with yellow hairs; head black, with a patch 
of yellow hairs on the face, and another on the back of the head, a 
blackish band across the centre of the thorax, and an indistinct narrow 
one on the third and fourth segments of the abdomen, the apex orange ; 
inside of tarsi clothed with yellowish pile. Length 6 lines. 
Remarks. A pair only of this species was preserved; in size and 
many respects it resembles B. Kirhiellus, but the indistinct and some- 
