British Hymenoptera. 269 



and August. Last year at Bournemouth the <? was 

 common at the end of July, but I obtained no ? . 



36. Andrena chrysosceles, Kirby. 



Kirby, Mon. Ap. Angl., ii., p. 143 ; Smith, Cat. Brit. 

 Hym., 2nd ed., p. 63. ■ 



Black ; abdomen shining. ^ , clypeus white. ? , face 

 much wider than long ; 3rd and 4th segments of 

 abdomen in both sexes with an apical streak of silvery 

 hairs on each side ; apical fimbria bright golden ; tarsi 

 in both sexes, the base and apex of the posterior tibiae in 

 the (? , and the entire posterior tibiae in the ? , clear 

 testaceous. Wings slightly dusky ; nervures testaceous. 



c? . Face above the clypeus clothed with fulvous 

 hairs ; clypeus white, with two small black dots on the 

 disk, and clothed with long white hairs. Antennae 

 reaching to the metathorax. Thorax finely rugulose 

 and shallowly punctured ; mesothorax and scutellum 

 with fulvous hairs ; metathorax finely rugose, its hairs 

 paler than those of tlie scutellum. Abdomen shining, 

 subelliptic, with a fine pale adpressed pubescence; basal 

 segment finely and remotely punctured, the following 

 more closely, and with a rather wide apical depression ; 

 all the segments pale at the extreme apex; the 2nd, 3rd, 

 and 4th with a short, very narrow apical streak of white 

 hairs on each side ; apex of 6th, and the 6th and 7th 

 segments with pale golden hairs ; beneath clothed with 

 long hairs ; apex of 3rd, 4th, and 5th segment with a 

 dense fringe of golden hairs ; apical ventral valve pale, 

 and somewhat pointed at the apex. Legs clothed with 

 pale hairs ; posterior tibiae at the base and apex, and all 

 the tarsi clear testaceous. 



S larger than the (? , but much like it in punc- 

 turation, &c. ; face transverse, the clypeus black, and 

 the bands of the abdomen more distinct, there being an 

 interrupted apical band of silvery white hairs on the 2nd 

 and 3rd segments, and an entire band on the 4th ; the 

 apex of the 5th, and the 6th densely clothed with golden 

 hairs ; apical dorsal valve piceous, flat, punctured, 

 except at the margins, which are narrowly reflexed ; 

 beneath, the segments are punctured towards the apex 

 and fringed with long hairs. Legs clothed with pale 

 hairs ; all the tarsi and the posterior tibiae clear testa- 

 ceous. Length 9 — 11 mm. 



