llfi HYMENOPTERA. 



ciliated with loncj fjiiscous pubescence, the third, fourth and 

 fifth segnu'uts have a few scattered erect bhu'k liairs, the anal 

 fimbria sli<;htly fulvous ; beneath, the margins of the segments 

 are ciliated with fuscous pubescence. 

 Hab. Nova Scotia. 



141. Andrena fimbriata, n. s. B.M. 



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

 ochraceous ])ube.scence, the depressions along the margins of the 

 eyes covered with a pale yellow pde, the flagellum beneath fer- 

 ruginous. Thorax thickly covered with ochraceous pubescence ; 

 the tcgulae rufo-testaceous, the nervures of the same colour, 

 wings subhyaline ; legs dark rufo-testaceous, the jjubescence on 

 the coxiE and femora ])ale, that on the tibiae and tarsi above dark 

 fuscous, the scopa dirty white. Abdomen ovate, the base and 

 margins of all the segments have a long fringe of pale yellow 

 pubescence, the apical fimbria fuscous. 



Male. — This sex closely resembles the female, the face having 

 a long yellow beard. 



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



142. Andrena hirticeps, n. s. B.M. 



Male. Length 4 lines. — Black, head and thorax densely pu- 

 bescent, on the vertex and along the margins of the eyes it is 

 black, from the insertion of the antennae to the anterior margin 

 of the cly])eus it gradually becomes snow-white ; the mandibles 

 fringed with long white hair. Thorax, above clothed with gri- 

 seous pubescence ; the legs, beneath, have a thin scattered white 

 pubescence, above it is of the same colour, but short and silvery, 

 the apical joints of the tarsi ferruginous and having beneath a 

 pale fulvous pubescence ; wings hyaline and iridescent, nervures 

 ferruginous. Abdomen shining and having a thin scattered 

 griseous pubescence, the extreme apex has a few silvery hairs ; 

 beneath, the margins of the segments have a white marginal 

 fringe. 

 Hab. Hudson's Bay. (Coll. H. Barnston.) 



143. Andrena algida, n. s. B.M. 



Female. Length 4 lines. — Black, the head covered with hoary 

 pubescence, slightly ochraceous on the vertex, the basal joint of 

 the antennae fringed with the same ; the disk of the thorax has 

 a similar pubescence to the vertex, on the sides and beneath it 

 is hoary ; the legs beneath have a thin fringe of white pubescence, 

 the scopa beneath silvery, above tinged with yellow ; the tarsi 



