Manchester Memoirs, Vol. xli. (1897), No. 4. 89 



2 (1) Front not longitudinally striated. 



3 (4) Tibiae not annulated with white. Icncotarsis 



4 (3) Tibiae annulated with white at the base. 



5 (6) The keel on the median segment rounded inwardly 



in the middle at the apex and not running into a 

 central furrow. strenua 



6 (5) The keel on the median segment not rounded inwardly 



in the middle at the apex. 



7 (8) The middle of the median segment raised and sepa- 



rated from the sides, which are not striated, base 

 of tibiae black. obsoleta 



8 (7) The middle of the median segment not raised and 



separated from the sides and uniformly rugose ; 

 base of tibiae white. bellicosa 



Prosopis striatifrons, Sp. 110V. 



Nigra ; orbitis oculorum infra lineaque pronoti flavis ; 

 alis hyalinis. 2. Long. 7 mm. 



Hab. Barrackpore (Rothney). 



Comes near to P. obsoleta; but is larger and stouter ; 

 the front is stoutly longitudinally striated ; the median 

 segment longitudinally striated. 



Head black; the inner orbits yellow, the yellow dilated 

 towards the middle, gradually at the bottom, more sharply 

 and obliquely at the top. The front and clypeus longitu- 

 dinally striated ; the front raised, its sides with a stout 

 border ; the vertex finely punctured, very sparsely and 

 shortly haired. Antennae stout, the flagellum obscure 

 brownish beneath. Thorax closely punctured, the meso- 

 notum rather strongly punctured ; the scutellum with the 

 punctures finer and more widely separated. Centre of 

 median segment at the base irregularly and somewhat 

 strongly reticulated ; this reticulated part being sur- 

 rounded by a distinct border ; the rest of the segment 

 coarsely aciculated ; the apex with a furrow down the 



