98 
[ J ULY 
the wings black. Scutellum yellowish, mixed with black. Wings fus¬ 
cous. Legs black. Abdomen above black, with the fourth segment 
yellowish-white. Beneath black. Length 7 lines. 
One specimen. Western Kansas. (Coll. E. Norton.) 
Closely allied to B. CaUforntcus^, but differs by the more elongate 
head, the yellowish scutellum, and in the scape of the antennas being 
much shorter. 
20. B. occidentalis. 
Bomhus occidentalis Greene, Ann. Lvc. iRat. Hist. H. Y., 7, p. 11 & 170. 
Female. Head black, with a tuft of yellowish hairs below the an¬ 
tennae Thorax yellow anteriorly and laterally, with a broad bla^k band 
between the wings. Scutellum yellowish, intermixed with black. Wings 
fusco-hyaline, nervures black. Legs black ] tarsi brown; corbicula 
golden-yellow. Abdomen above with the first three segments black, 
the apical segments white. Beneath black, with the posterior margin 
of the fifth and sixth segments fringed with whitish hairs. Length 
10 lines. 
Worker. Colored same as the female. Length 7 lines. 
Male. Colored same as the female, except that the hairs on the 
clypeus and vertex are mixed with yellowish, and those of the body 
beneath more or less pale. Length 7—8 lines. 
Forty-two (2 9,86 ^ , 4 "S ) specimens examined. California, Puget’s 
Sound, Ft. Vancouver, (Coll. Ent. Soc. Phila., E. Norton, and Smith. 
Inst) 
A very pretty species, and seems to be the most common of our 
Western ones. The hairs of the body are rather long, and those on 
the third abdominal segment above cover the anterior half of the fourth 
segment. 
21. B. proximus, n. sp. 
Worker? Head black. Thorax anteilorly pale yellowish, posteri¬ 
orly black mixed with yellowish. Wings subhyaline. Legs black; 
corbicula pale. Abdomen above black, with the third segment yellow¬ 
ish-white, and the two apical segments white. Beneath black, slightly 
mixed with pale hairs. Length 7 lines. 
One specimen. Utah. Dr. Suckley. (Coll. Smith. Inst.) 
Besembles B. medius., but the head is shorter, the body more com¬ 
pact, the wings clear, and the apical segments of the abdomen are white. 
