98 BEES OF GREAT BRITAIN. 



beneath ; the wings subhyaline, splendidly iridescent ; the legs 

 have a hoary pubescence ; the claws ferruginous. Abdomen 

 subovate, the apex testaceous. B.M. 



This may prove to be the male of A. nana m , it cannot possibly 

 belong to A. parvula, as supposed by Kirby. 



58. Andrena argentata. 



A. atra, argenteo-villosa ; thorace pallide fulvo ; abdomine ovato, 

 fasciis tribus albis, in medio vix interruptis. 



Andrena argentata, Smith, ZooL ii, 409 ; v. 1920. 52. 



Nyland. Revis. Ap. Boreal p. 256. 22. 

 Andrena barbatula, Zett. Ins. Lapp. p. 461. 5 ? 



Female. Length 4 lines. Head : a line of silvery pile on each 

 side of the face ; the face, above the antennae, delicately longi- 

 tudinally striate ; the antennae nigro-piceous beneath, the tips 

 covered with silvery- white pubescence. Thorax thinly clothed 

 with pale fulvous pubescence, on the sides of the metathorax 

 and beneath it is cinereous ; the legs have a glittering silvery 

 pubescence ; the apical joints of the tarsi ferruginous. Abdo- 

 men ovate, shining and very delicately punctured ; the apical 

 margins of the three intermediate segments fringed with white 

 pubescence, the first usually interrupted ; the apical fimbria 

 fuscous, intermixed with glittering silvery hairs. B.M. 



Male. Length 3 lines. The pubescence silvery-white, thinly 

 scattered on the disk of the thorax, the tegulae fulvo-testaceous, 

 wings hyaline, splendidly iridescent ; the apical joints of the 

 tarsi pale rufo-testaceous. Abdomen very glossy and smooth, 

 the basal segment has on each side a short fringe of snow- 

 white pubescence, on the four following the fringe is slightly 

 interrupted. 



This pretty little species was discovered some years ago at 

 Sandhurst, Berks ; subsequently at Weybridge, in the begin- 

 ning of August : no other locality is known. The A. barbatula 

 of Zetterstedt may be synonymous, but certainly not A. bar- 

 batula of Kirby. 



59. Andrena dorsata. 

 A. cinereo-subvillosa ; thorace fulvo ; metathorace utrinque 



