698 REPORT OF NEW JERSEY STATE MUSEUM. 



Family XYLOCOPID/E. 



XYLOCOPA Latr. 



X. virginica Dru. The large carpenter bee; common throughout the 

 State V, VI, making holes half an inch in diameter in boards or 

 beams about porches, sheds, etc. Cells made of leaf cuttings. 



Family 



This contains the true bees, most of them social, with workers or un- 

 developed females in the colonies, and most of them storing honey to a 

 greater or less extent. 



PSITHRUS Lepel. (APATHUS Newn.) 



The species of this genus resemble the bumble bees, but are really para- 

 sitic, in so far as they develop as unbidden guests in the nests of the 

 Bombi. The females have no pollen-baskets; the males are not easily 

 distinguished from bumble bees. 



P. ashtoni Cress. Caldwell (Cr). 



P. laboriosus Fab. (citrinus Sm.) Caldwell (Cr). 



P. variabilis Cress. Jamesburg VII, 18 (Coll). 



P. el at us Fab. Jamesburg, Monmouth Co. X, 1, Anglesea (Coll). 



BOMBUS Latr. 



These are the "bumble bees." They are social, make their nests in 

 cavities in the ground, the female winters and breeds workers only in 

 early summer. They have a very long tongue, and are the almost ex- 

 clusive agents in fertilizing red clover. . 



B. pennsylvanicus DeG. (americanorum Fab.) Throughout the State all 

 season. 



B. affinis Cress. Greenwood Lake (Cr) ; Westville (Fox). 



B. bimaculatus Cress. Philadelphia VII, 23 (Fox). 



B. borealis Kirby. New Jersey (Ashm). 



B. consimilis Cress. Throughout the State IV-IX. 



B. fervidus Fab. Throughout the State V-IX. 



B. ridingsi Cress. Throughout the State IV- VIII. 



B. ternarius Say. Staten Island VIII CDs). 



B. vagans Smith. Throughout the State VII-IX. 



B. impatiens Harr. (virginicus Oliv.) Throughout the State all season. 



B. perplexus Cress. Brown's Mills VI, 27 (Dke). 



