Manchester Memoirs, Vol. xli. (1897), No. 4. 103 



finely rugosely punctured ; the oblique depression under 

 the fore wings irregularly transversely striolated ; the 

 metapleurse have a blistered appearance, and are covered 

 with long white hairs. Wings clear hyaline ; the nervures 

 fuscous ; the first recurrent nervure interstitial ; the 

 second received in the apical fourth of the cellule. 

 Tegulae fuscous, lighter coloured round the edges. Legs 

 piceous ; thickly covered with longish white hairs ; the 

 coxae black. Abdomen shining, impunctate, the basal 

 segment at the base with some long white hairs ; the 

 others fringed with white hairs at the apices ; the ventral 

 segments fringed with long white hairs ; the apical seg- 

 ment broadly rounded ; its sides acutely projecting. 



Halictus tardus, sp. nov. (PI. 4, f. 18). 



Niger ; longe albo-hirtns ; tarsis fidvo-hirsutis; metanoto 

 reticulato ; alis hyalinis. 2. Long. 8 mm. 

 Hub. Mussouri (Rothney). 



Head closely and somewhat strongly punctured ; 

 densely covered with long soft white hairs ; the labrum 

 fringed with long fulvous hairs ; the mandibles piceous 

 at the base. Antennae stout ; the scape with longish 

 white hairs ; the flagellum with sparse white down. 

 Mesonotum and scutellum shining, bearing widely sepa- 

 rated shallow punctures, and, as well as the post- 

 scutellum, thickly covered with long white hairs ; the 

 median segment at the base closely longitudinally striated, 

 the striae not all quite straight ; the apex of the striated 

 area smooth and impunctate ; the apex of the segment 

 strongly reticulated ; and with a deep and wide furrow 

 down the centre ; the sides sharply and stoutly margined. 

 Propleurae smooth, shining ; the top bluntly triangular ; 

 the mesopleurae rugosely punctured ; the metapleurae at 

 the base alutaceous ; the apex reticulated ; but with the 

 keels much weaker than they are on the mesonotum. 



