BEES OF GREAT BRITAIN. 67 



Div. IV. Species having a fringe of long pale pubescence on 

 the apical margins of the segments. 



18. Andrena Gwynana. 



A. atra, villosa; thorace, abdomine antice, scopaque tibiarum 

 posticarum ferrugineis. 



Melitta Gwynana, Kirby, Mon. Ap. Angl. ii. 120. 60. 

 Melitta pilosula, Kirby, Mon. Ap. Angl. ii. 164. 65. 

 Andrena Gwynana, Smith. Zool. v. 1742. 27. 

 Nyland. Ap. Boreal, p. 213. 8. 



Female. Length 5-5i lines. Black ; the pubescence on the 

 head black ; the thorax above clothed with ferruginous pubes- 

 cence ; the wings subhyaline, their apical margins slightly 

 clouded, the nervures ferruginous ; the floccus pale ferruginous, 

 the scopa fulvous. Abdomen subovate, the pubescence on 

 the three basal segments ferruginous, their apical margins 

 having a long fringe of the same colour ; the apical fimbria 

 sooty-black. B.M. 



Male. Length 4-4 lines. The face clothed with a long dense 

 black pubescence ; the antennae rather shorter than the thorax, 

 which has a dull, pale ferruginous pubescence ; the wings sub- 

 hyaline, iridescent, and slightly clouded at their apical mar- 

 gins ; the legs fusco-ferruginous, and having a thin pale ferru- 

 ginous pubescence ; the apical joints of the tarsi ferruginous. 

 Abdomen ovate-lanceolate and having a scattered pale ferru- 

 ginous pubescence. B.M. 



This is not at all an uncommon species, but must be looked 

 for early in the season ;, it appears about the end of March. 

 Specimens have been received from Scotland. 



19. Andrena tricolor. 



A. atra, villosa ; thorace, abdominis segmentis primis tribus parce 

 rufo-hirtis ; tibiis posticis runs, scopa fulva. 



Andrena bicolor, Fair. Syst. Eni. p. 376. 4 ; Spec. Ins. i. 473. 6 ; 

 Mant. Ins. i. 298. 7 ; Ent. Syst. ii. 310. 12 ; Syst. Piez. p. 326. 22. 



Nyland. Rev is. Ap. Boreal. 253. 11. 

 Andrena sestiva, Smith, Zool. vii. Append, p. 60. 



