Manchester Memoirs, Vol. xlii. (1898), No. 1. 31 



the nervurcs testaceous ; the areolet narrow, longish ; the 

 recurrent nervures united at the top ; the first transverse 

 cubital nervure thick, the second narrow, faint on lower 

 side ; the recurrent nervure received near the apex of the 

 areolet and largely bullated at the top ; the first transverse 

 cubital nervure bulges out backwards, forming a triangle. 

 The basal three segments of the abdomen strongly 

 punctured, the others impunctate, thickly covered with 

 longish pale hair. 



Bassus GENEROSUS, sp. nov. 



Niger, orbitis ocidorinn, ore, palpis, linea pronoti, scutello, 

 tegulis, lineaque tibianun posticaruni albis ; pedibus rufis ; 

 tarsis posticis nigris ; alis hyalinis, siiginate fusco. 9. 



Long. 6 mm. 



Head black ; the face punctured, sparsely covered 

 with short fuscous hair ; the mouth, the base of the 

 mandibles, palpi and inner orbits, white ; the mandibular 

 teeth piceous and black. Thorax black ; a large broad 

 mark on the side of the mesonotum at the base, reaching 

 to the tegulae, the tegulae, tubercles, a triangular mark 

 on the pleurae below the base of the hind wings, the 

 greater part of the scutellum and the post-scutellum, 

 yellowish-white. Median segment closely punctured ; the 

 keels stout ; the supramedian area wider than long ; the 

 large median area rounded on each side at the top ; 

 stoutly transversely striolated. Propleurae distinctly punc- 

 tured ; the mesopleurse almost impunctate, especially 

 in the middle behind ; the metapleurae minutely punctured. 

 Legs red ; the fore coxa^ and the middle at the base, black; 

 the apices of the coxas and the trochanters yellow ; the 

 base of the hinder tibiae broadly black ; a broad white 

 band towards the middle ; at the apex of the white band 

 they are black, the apex itself being rufous. The stigma 

 is for the greacer part black ; the base broadly testaceous. 



