AXDREXA. 



47 



district. It is frequently attacked by a species of Stylops, which has 

 been bred from it, and described by Newport in the 'Linnean 

 Transactions,' and named Stylops aterrima. Specimens from Loch 

 Eannoch, Perthshire, differ in being mnch darker-coloured than 

 those described, the pubescence on the face of the males being quite 

 black. 



26. Andrena picicornis. 



A. nigra, grisescenti subvillosa, capite atro, antennis piceis. 



Andrena picicornis, Smith, Zool. v. 1745 ; Bees Great Brit. 75 <J £ • 

 Melitta picicornis, Kirby, Mon. Apum Angl. ii. 123 2 • 



Female. Length 5J-6 lines. — Black ; the face clothed with black 

 pubescence, that on the margin of the clypeus obscure fulvous ; 

 the flagellum rufo-piceous. Thorax thinly clothed above with 

 dark fulvo-ochraceous pubescence, that on the sides of the meta- 

 thorax and beneath paler; wings fulvo-hyaline, the nervures pale 

 ferruginous ; the legs rufo-testaceous ; the scop a on the posterior 

 tibia3 fulvous; the apical joints of the tarsi feruginous. Abdo- 

 men ovate, shining and fuscous, with a thin pale fulvous pubes- 

 cence ; the apical margins of the segments rufo-testaceous ;• the 

 apical fimbria fuscous. B.M. 



Male. Length 5 lines. — Closely resembles the female, but more 

 elongate ; the face clothed with sooty black pubescence ; antennae 

 shorter than the thorax, the joints of the flagellum subarcuate ; 

 the legs rufo-piceous, their pubescence fulvous. Abdomen elon- 

 gate-ovate and shining ; the apical margins of the segments ob- 

 scurely rufo-testaceous ; the three basal ones have a thin pale 

 pubescent fringe, on the fourth and fifth it is longer and more 

 dense ; the two apical segments with fuscous pubescence, inter- 

 mixed with a few fulvous hairs at the apex. B.M. 



This is a very local species ; the only locality known is the neigh- 

 bourhood of Brighton, where it was found by the late Mr. Walcott, 

 the exact locality being, I believe, Portslade, towards Shoreham. 

 I have only seen about a dozen specimens, all being attacked by a 

 species of Stylops. Taken in June. 



27. Andrena bimaculata. 



A. atra, pallido fulvo subvillosa, abdomine aliquando cingulo an- 

 tico ferrugineo, scopa fulva. 



Andrena bimaculata, Smith, Zool. v. 1739; Bees Great Brit. 76 tf. 

 Melitta bimaculata, Kirby, Mon. Apum Angl. ii. 115 <$ . 

 Andrena conjuncta, Smith, Zool. v. 1744 ; Bees Great Brit. 73 2 ■ 



Female. Length 6 lines. — Black ; the head in front covered with 

 dark fuscous pubescence, obscurely fulvous at the anterior margin 

 of the clypeus; that on the cheeks pale fulvous; the mandibles 



