100 [ J ULY 
pale yellow or a dirty white. Beneath black, sparsely clothed with 
pale hairs. Length lines. 
Female and worker not seen. 
One specimen. Pike’s Peak. (Coll. Ent, Soc. Phila.) Collected hy 
Mr. Winslow J. Howard, after whom it is named, and who has already 
discovered in that locality some new and very interesting species of 
Hymenoptera. 
25. B. frigidus. 
Bomhus frigidus Smith, Brit. Mus. Cat. Hym. ii, p. 399. (1854). 
Bombus Carriei Greene, Ann. Lye. Nat. Hist. N. Y. vii, p. 170. (1860). 
Female. Head black, mixed with yellowish on the vertex. Thorax 
yellow, with a black band between the wings. Wings fusco-hyaline. 
Legs black ] base of femora beneath clothed with yellowish hairs; cor- 
bicula fulvous; tarsi brown, inner side of basal joint rufous. Abdo¬ 
men above with the two basal segments yellow; the third black, and 
the remaining segments fulvous or yellowish-fulvous. Beneath black, 
mixed with a few pale hairs. Length 7 —8 lines. 
Worker. Colored same as the female. Length 5 —6 lines. 
Male. Colored same as the female, except that the hairs on the head 
and legs are all yellow. Length 62 lines. 
Variety. The black band on the third segment of the abdomen 
above is very indistinct. 
Twenty (13 9 ,4 ^ , oS ) specimens examined. Grreat Slave Lake; 
Youcon B,iver, Arctic America. Mr. Kennicott, (Coll. Smith. Inst.) 
Puget’s Sound, (Coll. E. Norton). 
The antennae of the male of this species, unlike any other known to 
me, have the flagellum somewhat suddenly thickened at the base, and 
gradually narrows to the tip. 
In some specimens the hairs of the third dorsal segment of the abdo¬ 
men cover the anterior part of the fourth segment, giving the abdomen 
the appearance of having two black bands. 
The variety of the male has the abdominal segments very much con¬ 
tracted, and the black band on the third segment is so indistinct that 
it would seem to belong to another species, but I think it is merely a 
variation. 
The description of B. Carriei Greene, answers so well to that of 
B. frigidm., that I have no doubts of their identity. 
