APPENDIX. 343 



black, less than half the length of the abdomen. Legs 

 red ; conse black ; tibise black above. Wings cinereous ; 

 veins black. Length of the body, 10 lines; of the 

 wings, 18 lines. 



Fam. APID/E. Genus BOMBUS. 

 Bombus flavifrons. N. S. 



Hirsutus, ater; capite, thorace, abdomenisque fascia 

 tefluis flavis ; alis nigricantibus ; ano nigro. 



Female. Length, 8^- 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. CHRYSIDID.E. (Leach.) Genus CHRYSIS. (Linn.) 

 Chi^ysis smaragdicolor. N. S. 



Smaragdina, aspere punctata ; antennis viridibus, apices 

 versus nigris ; abdominis segmenti 2 l margine postico 

 subglabro, 3 1 margine postico subruguloso, 4 brevis- 

 simonondentato; tarsis nigris; alis nigricantibus, postice 

 cinereis. 



