Vol. xxvi] ENTOMOLOGICAL NEWS 413 



I received this specimen through the kindness of Prof. T. 

 D. A. Cockerell. 



Psithyrus intrudens (F. Sm.) Handl. 



A female of this species from the collection of the British 

 Museum is before me. It bears two locality labels -"Santa 

 Cruz" and ''San Geronimo, Guatemala (Champion)." This 

 species is much like laboriosus in general appearance, the only 

 noticeable difference between it and the specimens of that spe- 

 cies without any yellow on the dorsum of the abdomen being 

 the shaded lower portions of its pleura and the greater amount 

 of yellow in the pile of the frons above the bases of its an- 

 tennae. It can be readily separated from laboriosus structur- 

 ally, however, by its much finer pile and by the much finer and 

 sparser punctuation of the dorsum of its abdomen, the abdo- 

 men being scantily clothed and shining much like that of varia- 

 bilis. 



Psithyrus bicolor Franklin. 



A specimen before me, from Xucumanatlan, Guerrero, 

 Mexico (7,000 ft. alt.), seems much like the type of this spe- 

 cies, except that the disc of the dorsum of its thorax is not 

 noticeably darkened, its second dorsal abdominal segment has 

 no yellow pile whatever on its hind corners, the yellow on the 

 hind corners of its third segment does not extend toward the 

 middle line along the hind margin and its fourth segment has 

 no yellow pile whatever in the middle. The punctuation of 

 the dorsum of its abdomen is about like that of intntdens, be- 

 ing much finer and sparser than that of insularis. This speci- 

 men may represent a new species, but I prefer not to give it a 

 new name until I know more about the variations of the Mexi- 

 can and Central American Psithyri. 



I have the following new habitat records for New World 

 species of Bombus and Psithyrus: 



1. Bombus terricola Kirhy. Fargo, No. Dakota, forty-two speci- 



mens, representing all three castes; Detroit, Minnesota, three 

 workers; Lake Park, Minnesota, four males and one worker 

 (all by O. A. Stevens V 



2. Bombus affinis Treason. Fargo, No. Dakota, one worker (O. 



A. Stevens). 



