HYMENOPTERA. 11/ 



beneath pale fulvous, apical joints of the tarsi feiruginous ; 

 wings subhyaUne, iridescent, and faintly clouded at their apex, 

 nervures ferruginous. Abdomen ovate, shining, the apical mar- 

 gins of the second, third and fourth segments are fringed with 

 white pubescence, the anal fimbria slightly fulvous. 



Male. — This sex is clothed similarly to the female, but the 

 ])ubescence is longer, the clypeus having a kmg white beard, and 

 a few black hairs at the margin of the eyes, the pubescence on the 

 legs is entirely hoary ; the abdomen elongate-ovate, without mar- 

 ginal fasciae ; the pubescence at the extreme apex pale fulvous. 

 Hub. Hudson's Bay. (G. Bamston, Esq.) 



144. Andrena nubecula, n. s. B.M. 



Female. Length Splines. — Black, the face above the insertion 

 of the antennae finely longitudinally striate, the vertex smooth, 

 below the antennae thinly covered with hoary pubescence, fla- 

 gellum beneath rufo-testaceous, mandibles ferruginous at their 

 apex. Thorax, the disk smooth and shining, the sides of the 

 metathorax have a long curled floccus of pale ochraceous hair ; 

 wings fusco-hyaline, the anterior wings having a dark cloud oc- 

 cupying the apical margin and also the marginal cell, the poste- 

 rior wings have their marginal cell clouded ; tegulae testaceous, 

 the nervures dark brown ; legs rufo-testaceous, their pubescence 

 pale, the floccus white, apical joints of the tarsi pale ferruginous. 

 Abdomen oblong-ovate, shining and very closely and delicately 

 punctured, ajncal margins of the second, third and fourth seg- 

 ments having a fascia of white pubescence, the anal fimbria pale 

 fulvous. 

 Hab. United States (E. Doubleday, Esq.); Nova Scotia (Lieut. 



Redman). 



145. Anbrena fulvipennis, n. s. 



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

 vertex and cheeks thickly covered with pale fidvous pubescence, 

 the mandibles ferruginous. Thorax and legs clothed with ful- 

 vous pubescence ; wings fulvo-hyaline, tegulae and nervures rufo- 

 testaceous ; the tibiae and tarsi fulvous. Abdomen elongate- 

 ovate ; black, with a silken gloss, the margins of the segments 

 have a fascia of pale fulvous pubescence, the anal fimbria fer- 

 ruginous, beneath rufo-testaceous. 

 Hab. East Florida. (E. Doubleday, Esq.) (Coll. F. Smith.) 



146. Andrena valida. 



Andrena valida. Say, Bost. Journ. Nat. Hist. i. 393. 

 Hab. United States. 



