120 Cameron, Hymenoptera Orientalia. 



fringed with pale hairs ; the fifth segment with the fringe 

 thicker and longer and dark fulvous ; the sixth seg- 

 ment similarly clothed at the sides ; the hypopygium 

 alutaceous ; the centre triangularly raised, but not sharply. 

 The second ventral segment rufous, black in the centre, 

 the black mark being dilated at the apex ; the third and 

 fourth black, piceous at the base. 



Andrena ph.edra, sp. 110V. 



Long. 8 mm. 6 . 



Hab. Mussouri (Rothney). 



This species is very closely allied to A . reticulata, and 

 has, like it, the base of the median segment reticulated ; 

 but its apex is not transversely striolated ; while in its 

 centre, below the reticulated part, is a deep, shining, 

 impunctate, and somewhat triangular space ; the widest 

 part of which is at the base. 



Head densely covered with long greyish hairs ; closely 

 rugosely punctured ; the clypeus strongly punctured, with 

 the punctures more widely separated ; depressed at the 

 apex and with very few punctures ; the mandibles deeply 

 grooved ; their teeth piceous. Antennae black, towards 

 the apex with a fuscous down. Thorax densely covered 

 with long pale fulvous hairs ; the mesonotum and scu- 

 tellum bearing large, clearly-separated punctures except 

 the former in the middle at the apex and the latter at 

 the base ; the base of the median segment with a band of 

 short longitudinal keels ; and a second band of similar 

 keels in the middle behind the first ; and from the centre 

 of this runs a short deep, shining, somewhat triangular 

 depression ; •the rest of the segment rugosely punctured. 

 Mesopleurae with large punctures ; a curved furrow above 

 the middle ; above which is a large, smooth, impunctate 

 space ; the part immediately below the wings being 

 coarsely punctured ; the metapleurae closely rugose. 



