APID.E. 303 



segment with a dense apical fringe of white hairs, beneath 

 piceous with paler bands, eighth segment in the $ with a 

 very short, nearly straight, apical process, armed with two 

 very strong recurved hook-like spines at the apex, stipites 

 of the armature produced at tlie apex into an elongate 

 curved process terminating in a narrow point, which is 

 tufted with hairs and slightly bent outwards, another tuft 

 of hairs is situated on the outer edge of tLe curve of the 

 process. 



L. 4-5 mm. 



This is a common and generally distributed species. 

 F. Smith thinks it is parasitic on ILdictits morio and minutun, 

 which is improbable for the reasons I bave given, but ho 

 also says that Mr. G. Newport found numbers of it in the 

 cells of a species of Colletes. 



ATIBJE. 



This family includes the larger number of our Anthophi- 

 lous genera, although the genera themselves are less ex- 

 tensive. The tongue is elongate in all, the lora well 

 developed, the labial palpi sheath-like in the form of their 

 basal joints ; the labrum transverse in some genera, elon- 

 gate or quadrate in others, pollinigerous hairs either on the 

 tibife, femora, and metatarsi, or on the ventral surface of 

 the abdomen ; absent in the inquilino genera ; abdomen 

 usually more cylindrical and wider at the base than in the 

 Andrenidce ; in some genera the anal orifice of the ($ is 

 inferior, the sixth segment having its dorsal surface bent 

 downwards so as to form the apex of the abdomen, this 

 arrangement limits the space allowed for the ventral seg- 

 ments which accordingly are usually in such cases more 

 or less "telescoped" under each other, but the forms of 

 these hidden segments are often most peculiar and valuable 

 as specific characters. 



