Manchester Memoirs, Vol. xli. (1897), No. 4. 95 



the scutellum ; the median segment has an elongated 

 semicircular area, the base raised, rugosely punctured ; 

 the rest of it smooth, with a distinct central and a few 

 incomplete longitudinal keels, there being also a trans- 

 verse keel before the apex. Behind the narrow part 

 of this area, at the sides of it, is a strongly irregularly 

 obliquely keeled area ; the apex of the segment semi- 

 oblique, strongly aciculated. Meso- and meta-pleurse 

 thickly covered with white hairs ; the latter obliquely 

 striated. Legs black, with a piceous tinge, the femora 

 darker ; the femora sparsely, the tibiae and tarsi thickly, 

 covered with white hairs. Tegulse testaceous, darker 

 behind. Wings clear hyaline, the nervures and stigma 

 blackish ; the recurrent nervures received near the apical 

 third of the cellules. Abdomen shining, smooth ; the 

 basal three segments red above and below ; the apical 

 black, thickly covered with longish white hair. 



Comes near to H. xanthognathus Sm., but is much 

 smaller and otherwise quite distinct. 



Halictus dissimilandus, Sp. 110V. 



Long, fere 6 mm. 2 . 

 Hob. Mussouri (Rothney). 



Is very like H. decorus in size and coloration, but may 

 be at once known by the base of the median segment 

 not having a depressed semicircular area clearly defined 

 by a keel, it being instead strongly reticulated; the legs, 

 too, are much lighter in tint. 



Antennae black, thick, sparsely covered with white 

 microscopic hairs ; the front and vertex more sparsely 

 with longer hairs ; the vertex obscurely punctured ; 

 mandibles rufous, the tips black. Pro- and meso-notum 

 covered with fuscous hairs ; the hairs on the scutellum 

 longer and paler ; the pro- and meso-notum coarsely 

 punctured ; the scutellum not quite so strongly punc- 



