Manchester Memoirs, Vol. xli. (1897), No. 4. 121 



Legs covered with long white soft hairs ; especially 

 thick and close on the tarsi. Wings clear hyaline ; the 

 nervures dark fuscous ; the second and third cubital cel- 

 lules at the bottom almost equal in length ; the first 

 recurrent nervure is received shortly before the middle ; 

 the second in the apical third. Abdomen with the apices 

 of the segments fringed with white hairs ; the basal seg- 

 ment sparsely covered with long white hairs ; at its base 

 is a deep triangular depression ; the ventral segments 

 shining ; their apices fringed with white hair. 



Andrena sodalis, sp. 110V. 



Long. 8 — 9 mm. 



Hah. Mussouri (Rothney). 



Agrees with A . phczdra and A . reticulata in having the 

 median segment reticulated at the base ; from the former 

 it may be known by there being a triangular keel and 

 spot in the middle of the segment at the base, in which 

 there is no deep triangular depression ; from the latter by 

 its smaller size and by the median segment not being 

 transversely striated. 



Head densely covered with long pale fulvous hairs, 

 hiding the sculpture ; the front and vertex finely and 

 closely rugose ; the clypeus strongly punctured, the punc- 

 tures distinctly separated ; the mandibles deeply grooved ; 

 their teeth piceous. Antennae black ; the apex with a 

 microscopic down. Thorax above thickly covered with 

 fulvous hairs ; the sides and head with longish pale hairs ; 

 the mesonotum closely and rather strongly punctured, less 

 closely in the middle towards the apex ; the scutellum 

 punctured pretty much as the base of the mesonotum, 

 and covered with longer hairs. Median segment with an 

 oblique slope ; the base with a double row of short thick 

 keels ; below these is a large wide triangular shining 

 reticulated space ; the rest of the segment rugosely punc- 



