1862.] 



PECTEN IN CERTAIN SPECIES OF BEES. 



119 



In some, as Andrena nitida, 5 (figs. 3, 4), the direction of the 

 teeth is reversed in the course of the row. The row of hairs is 



figured by Kirby in his work on 'British Bees,' at t. 1. f. 4 e, and 

 called by him, in the explanation of the plates at page 226, " setce 

 rigidiusculcB ;" but I do not find any mention of them in any other 

 part of the work. 



In the ApidtB it is invariably at the upper part of the lower joint 



