HYMENOPTERA. 107 



91. ANDRENA VARIABILIS, n. s. B.M. 

 Female. Length 5^-6 lines. Black, the head finely and closely 



punctured, flagellum ferruginous beneath, the face has a griseous 

 pubescence, the clypeus being naked and strongly punctured. 

 Thorax, above shining, strongly but not very closely punctured, 

 in front and on the margins of the scutellum and post-scutellum 

 a fringe of short ochraceous pubescence, the legs have a pale pu- 

 bescence having more or less of a yellow tinge ; the floccus and 

 scopa on the posterior pair have a glittering silvery lustre, on the 

 tarsi beneath it is fulvous, the apical joints of the tarsi palerufo- 

 testaceous, as are also the tegulae and nervures of the wings, the 

 latter hyaline ; the apical margins of the abdominal segments 

 have a fascia of white pubescence, usually interrupted on the first; 

 the anal fimbria has an intermixture of reddish brown hairs. 



Male. Length 5 lines. Black, the clypeus and a large patch 

 at the sides white ; the face broad, and having a thin hoary pu- 

 bescence. The antennae ferruginous, more or less fuscous above, 

 in other respects resembling the female. 



Obs. Both the sexes of this species vary in being sometimes 

 more or less red, the female is sometimes entirely so, or having 

 only a dark stain on the disk of the thorax ; the dark specimens 

 usually have the clypeus red, and are sometimes reddish beneath. 

 The male varies in having the abdomen sometimes entirely red, 

 or having only one or two apical segments dark with the base 

 more or less also dark ; these varieties have the legs red. 

 Hob. Albania. 



92. ANDRENA LANUGINOSA. 



Andrena lanuginosa, Spin. Ann. Soc. Ent. Fr. 2 me ser. i. 137. 25. 

 Hab. Spain. 



93. ANDRENA CINEREA. 



Andrena cinerea, Brulle, Exped. Sc. Moree, iii. 357. 788. 



Luc. Explo. Sc. Alger. iii. 181. 84. 

 Hab. Morea; Algeria. 



94. ANDRENA CLYPEATA. 



Andrena clypeata, Brulle, Exped. Sc. Moree, iii. 358. 791. 



Luc. Explo. Sc. Alger. iii. 180. 80. 

 Hab. Morea; Algeria. 



95. ANDRENA DIMIDIATA. 



Andrena dimidiata, Brulle, Exped. Sc. Moree, Zoo/, iii. 353. 781. 

 Hab. Morea. 



