1S(U.] 41 



lonji', dense black, pubescence ; beneath bluish-green, sparsely clothed 

 with black pubescence. Length 11 lines. 



Halj.— Fort Crook, California. Mr. Henry Ulke. (Coll. Ent. Soc. 

 Philadelphia.) 



Genus BOMBUS. Latr. 

 4. Bombus consimilis. n. sp. 



Female. — Head black, with a tuft of yellowish pubescence on the 

 vertex. Thorax entirely pale yellow, sometimes slightly tawny. Wings 

 subhyaline, darkest along the apical margin. Legs black, with black 

 hairs, those on the femora beneath more or less mixed with yellow ; 

 tarsi rufous within. Abdomen short, subglobose, the two basal seg- 

 ments pale yellow, sometimes slightly tawny; the apical segments black, 

 sometimes the two apical segments are more or less mixed with yellow- 

 ish ; beneath black. Length 8 — 9 lines. 



Hub. — Canada, New York, Massachusetts. Eight specimens. (Coll. 

 Ent. Soc. Philadelphia.) 



Colored same as B. oagttns Smith, but is much smaller and more 

 robust in proportion to the size. Mr. T. B. Ashtou collected a number 

 of this species, all females, early iu the spring, in Northern New York, 

 together with females of B. vagans, /ervidus, borealis, virffinicus, pen- 

 sj/lvanicus. scparatus^ and tcrrlcola. 



h. Bombus centralis, n. sp. 



Female. — Head black, with a tuft of yellowish hairs above and be- 

 low the antennfe and on the vertex. Thorax yellow above and on the 

 sides, with a broad black band between the wings. Wings subhyaline, 

 stained with fuscous, especially along the costa. Legs black, with black 

 hairs ; tarsi rufous within. Abdomen with the two basal segments 

 yellow, with a rather large black patch on the disk above ; the third 

 and fourth segments pale orange-yellow; the apical segments black; 

 beneath clothed with short yellowish pubescence. Length 8 lines. 



Hah. — Fort Crook, California. One specimen. Mr. H. Ulke. (Coll. 

 Ent. Soc. Philadelphia.) 



Closely resembles B. Jiavifrons Cresson, but is rather more robust, 

 and may be at once distinguished from that species by the black patch 

 on the disk of the two basal segments of the abdomen above. 



0. Bombus borealis, Kirby. 



In mv list of the N. A. species of Bombixs (Pror. Ent. Soc. Philad. 



