APPENDIX. 343 
black, less than half the length of the abdomen. Legs 
red; cone black; tibize black above. Wings cinereous ; 
veins black. Length of the body, 10 lines; of the 
wings, 18 lines. 
Fam. Artpa.—Genus Bomesvs. 
Bombus flavifrons. N.S. 
Hirsutus, ater; capite, thorace, abdomenisque fascia 
tenuis flavis; alis nigricantibus ; ano nigro. 
Female.—Length, 84 lines. Clothed with black 
pubescence. The face and vertex have a pale yellow 
pubescence; that on the underside of the head is black. 
The anterior portion of the thorax before the insertion 
of the wings covered with pale yellow pubescence; also 
a narrow band of the same colour on the fourth segment 
of the abdomen; the wings blackish brown. 
This species closely resembles Bombus californicus ; 
from that species it differs in having darker wings, in 
the face and vertex being clothed with pale yellow 
pubescence, and in having a much narrower band on 
the abdomen. 
Fam. Curysipip&. (Leach.)—Genus Curysis. (Linn.) 
Chrysis smaragdicolor. N.S. 
Smaragdina, aspere punctata; antennis viridibus, apices 
versus nigris; abdominis segmenti 2' margine postico 
subglabro, 3 margine postico subruguloso, 4° brevis- 
simo nondentato; tarsis nigris; alis nigricantibus, postice 
cinereis. . 
