HYMENOPTERA. 113 



thin hoary pubescence, the clypeus strongly punctured, the apical 

 joints of the antennae ferruginous beneath ; the thorax thinly 

 clothed with pale ochraceous pubescence ; the wings subhyaline, 

 nervures pale ferruginous, tegulae rufo-testaceous, the floccus, 

 and scopa beneath, white, the latter fuscous above ; the tarsi ful- 

 vous beneath, their apical joints ferruginous. Abdomen oblong- 

 ovate, smooth and shining, highly polished at the base, the apical 

 margins of the second, third and fourth segments have laterally 

 a narrow marginal fringe of white pubescence, the anal fimbria 

 fuscous ; beneath, the segments have a narrow white marginal 

 fringe. 

 Hab. United States. (E. Doubleday, Esq.) 



133. Andrena aliena, n. s. B.M. 



Female. Length 4 lines. — Black, the face on each side of the 

 clypeus covered with silvery-white pubescence, above the insertion 

 of the antennae the pubescence is slightly ochraceous and thinly 

 scattered, flagellum beneath ferruginous towai'ds the apex, tips 

 of the mancUbles ferruginous. Thorax, the disk shining and 

 thinly covered with cUrty ochraceous pubescence, the enclosed 

 space at the base of the metathorax transversely striate, beyond 

 which it is smooth and shining ; wings hyaline and iridescent, 

 the nervures dark fuscous ; the coxae and femora beneath fringed 

 with white pubescence, above it is of a dirty white ; the scopa 

 has silvery lustre in certain lights, and on the tarsi beneath fid- 

 vous, the claws pale ferruginous. Abdomen ovate, somewhat 

 acuminate at the apex, smooth and shining, the apical margins 

 of the second, third and fourth segments ha\'ing a fascia of dirty 

 white pubescence, the anal fimbria of the same colour. 



Obs. This species closely resembles A. argentata, but is easily 

 distinguished by the sculpture of the metathorax. 

 Hab. St. John's Bluff. (E. Doubleday, Esq.) 



134. AXDRENA victima, u. s. B.M. 



Female. Length 5 lines. — Black, the face thinly clothed with 

 pale fulvous pubescence, the ])ubescence of the thorax and legs 

 is similar to that on the face, being deeper-coloured on the disk 

 of the former ; the thorax is covered with minute shallow punc- 

 tures, the metathorax rounded and finely roughened ; wings sub- 

 hyaline, the tegulae and nervures rufo-testaceous ; the apical 

 joint of the tarsi ferruginous, clothed beneath with fulvous pu- 

 bescence, floccus and scopa pale fulvous. Abdomen ovate, and 

 having a thinly scattered short fulvous pubescence, most dense 



