APID.-E. 349 



■with rather short, black hairs, seventh segment in the S 

 with a narrow central glabrous region which is truncate at 

 the apex ; abdomen clothed with black hairs beneath in 

 both sexes, seventh ventral segment in the S , with the 

 apical area transverse and truncate, eighth bidentate in the 

 centre of its apical margin, each tooth with long apical 

 hairs, armature with its sides subparallel, stipites dilated 

 triangularly at the apex, and emitting a very narrow 

 filiform pi'ocess, pointed inwards towards the sagittie ; legs 

 clothed with pale fulvous hairs in the ^, those of the 

 posterior tibiae inwardly, and of the posterior and inter- 

 mediate metatarsi, black, those of the latter very long, 

 dense and projecting, posterior tibias with a patella, hairs 

 of the legs in the ? black those of the scopa) bright orange, 

 calcaria in both sexes and apical joints of the tarsi in the 

 S pale. 



L. 15-16 mm. 



Not nearly so common as the following. Woking ; 

 Chobham ; Hastings; Worthing. Colchester; [Ilarwood). 

 Maidstone; {Frishij). Norfolk; (Briihjman). Burrows 

 in the ground in banks, &c., and appears in April and May, 

 it makes its cells of clay. 



A. pilipes, Fall, {ntusa, Kirb. ; acervorum, Smith). — 

 Very like the preceding, but differing in the following 

 points : — 



^ , pubescence longer and generally of a less rich brown, 

 fading to a greenish grey, clypeus nearly entirely pale, alar 

 hooks of posterior wings twenty to twenty-two instead of 

 only fifteen to sixteen, intermediate tarsi with the first and 

 fifth joints densely clothed with projecting black hairs, the 

 first to the fourth also fringed with extremely long grey 

 hairs, calcaria black, seventh ventral segment more 

 rounded apically, eighth much wider, carinated down the 

 centre, armature not parallel sided, stipites with two apical 

 processes, from the inner of which is emitted a filiform 

 process, wider and longer than that of reluna. 



