4. ANDRENA. 45 



fusco- cinereous in another, that on the cheeks white. Thorax 

 clothed above with rufo-fulvous pubescence ; on the metathorax, on 

 the sides and beneath it is nearly white ; the wings hyaline, their 

 apical margins faintly clouded, with the nervures pale ferruginous ; 

 the legs have a pale rufous pubescence, the fringe on the femora 

 and the floccus on the posterior trochanters white ; the posterior 

 tibiae, the apical joints of the anterior tarsi, and the intermediate 

 and posterior pairs rufous, the scopa fulvous. Abdomen obscurely 

 nigro- aeneous, subovate, convex, and thinly sprinkled with short 

 pale fulvous pubescence, the apical margins of the segments with a 

 whitish fringe, the apical fimbria somewhat fulvous. B.M. 



Male. Length 5 lines. — The face with pubescence similar to the 

 female, with a little fulvous intermixed at the insertion of the an- 

 tennae, which are as long as the thorax, the joints arcuate. 

 Thorax and wings as in the other sex ; all the tarsi and the pos- 

 terior tibiae ferruginous, usually more or less fuscous at the base, 

 sometimes to more than half their length. B.M. 



This must be a very local species : Kirby took it once at Barham, 

 and in his collection there is one female and two males ; the Museum 

 collection contains a male from that of Mr. Stephens. I have a 

 female, taken at Aldershot some years ago, that I have considered 

 a variety of the species ; this has white pubescence on the face ; in 

 other respects it closely resembles it. 



24. Andrena nigro-aenea. 



A. nigra, fulvo pubescens ; capite anoque pube atra ; abdomine 

 subhirsuto, nigro -aeneo. 



Andrena nigro-aenea, Smith, Zool. v. 1738 ; Bees Great Brit. 71. 



Schenck, Nass. Bien. 239. 



Thorns. Opusc. Ent. ii. ; Hym. Scand. ii. 84. 

 Melitta nigro-aenea, Kirby, Man. Apum Angl. ii. 109. 



Sowerby, Brit. Miscel. i. 77, tab. 38. 



Female. Length 6-6% lines. — Black ; the pubescence on the face 

 dark brown, above the insertion of the antennae and at the sides 

 it is black; on the cheeks, margin of the vertex, and thorax above 

 the pubescence is fulvous ; on the sides and on the femora it is 

 paler ; the scopa bright fulvous, the pubescence on the tarsi dark 

 fuscous ; the wings subhyaline, their nervures rufo-testaceous. 

 Abdomen nigro-aeneous, ovate, and thinly clothed with fulvous 

 pubescence ; the margins have a fringe of the same colour ; the 

 apical fimbria black. B.M. 



Male. Length 5-6 lines. — The face clothed with reddish brown 

 pubescence ; the antennae not quite so long as the thorax, the joints 

 subarcuate ; the legs and thorax have a fulvous pubescence, not so 

 bright as in the female ; the abdomen nigro-aeneous, ovate, and 

 thinly covered with fulvous pubescence ; towards the apex it is 

 black. B.M. 



