BEES OF GREAT BRITAIN. 55 



has not been observed there for some years past ; it occurs at 

 Weybridge ; in Hampshire it is extremely abundant. The male 

 may be known at once from the same sex of A. Rosa, by having 

 the joints of the flagellum simple, not arcuate. 



5. Andrena decorata. 



A. atra, abdomine nigro, segmento primo secundoque margini- 

 bus runs ; scopa fulva. 



Andrena decorata, Smith, Zool. v. 1667. 4. 



Female. Length 6-6 lines. Black ; the flagellum rufo-piceous 

 beneath ; the face clothed with pale fulvous pubescence. Thorax 

 coarsely punctured, the sides of the metathorax have a dense 

 pale fulvous pubescence ; the tegulae rufo-piceous, the nervures 

 pale testaceous ; the legs rufo-testaceous, and having a fulvous 

 pubescence, the scopa fulvous. Abdomen : the second segment 

 and the apical margin of the first red, the former having a 

 transverse fuscous stain in the middle, the apical fimbria fus- 

 cous. B.M. 



Male. Length 5-5J lines. Black ; the head rather wider than 

 the thorax ; the face and sides of the metathorax have a fulvo- 

 ochraceous pubescence ; the antennae shorter than the thorax, 

 the joints subarcuate ; the wings hyaline, the nervures pale fer- 

 ruginous, the apical margins faintly clouded ; the tarsi and 

 apex of the tibiae pale rufo-testaceous. Abdomen lanceolate, 

 the apical margins of the three basal segments red. 



This species closely resembles A. Eosce in general appearance, 

 but may be easily distinguished from it, having the thorax 

 coarsely punctured, and the scopae fulvous : it is very local, and 

 has been only twice met with, once at Birch Wood, and again at 

 Shirley Common. 



6. Andrena Cetii. 



A. nigra, cinereo-subvillosa ; thorace rufescenti; abdomine cin- 

 gulo rufo, segmentis posticis flavo-ciliatis. 



Apis Cetii, Schrank, Ins. Ami. p. 405. 818 ?. 

 Andrena marginata, Fabr. Sp. Ins. i. 473. 4 ; Mant. Ins. \. 298. 5 ; 

 Ent. Syst. ii. 309. 10 ; Syst. Piez. p. 326. 20. 

 Panz. Faun. Germ. 72. 15. 



