Manchester Memoirs^ Vol. xliii. (1899), No. 3. 91 



uniting there; the lower nervure is faint; at the top the 

 recurrent nervure is separated from the cubital by a bulla ; 

 there is another bulla shortly above the middle of the 

 nervure ; so that, with these two bullae, a small piece of 

 the nervure is completely separated from the rest. Abdo- 

 men shining, impunctate. 



Agathis melanocerus, sp. nov. 



Lutea ; vertice mitennisque nigris ; alls flavis, apice 

 fere fuinatis. % 



Long. 1 1 mm. 



Antennae entirely black, except for a rufous mark on 

 the base of the scape ; which is covered with blackish 

 hair. Head luteous, the upper part in front and behind 

 black. Face impunctate, thickly covered with fuscous 

 hair ; below the antennae is a triangular depression ; the 

 mandibular teeth black and piceous. Mesonotum of a 

 brighter, less pallid, yellow hue than the rest of the thorax ; 

 its central lobe roundly raised, not depressed in the middle ; 

 the depression at the base of the scutellum wide and deep; 

 its middle keel reaching near to the base. The base of 

 the scutellum has a straight, oblique slope and is keeled 

 at the top, is almost impunctate and glabrous, and has at 

 the apex a stout, slightly curved keel. The base of the 

 median segment has a semi-oblique slope, is stoutly keeled 

 round the apex and down the middle ; the central area is 

 longer than its breadth, triangular at the base, transverse 

 at the apex, and has a stout, transverse keel shortly beyond 

 the middle ; the lateral areae next to it are slightly 

 wider than it is at the top, but distinctly narrower at the 

 bottom ; the keel bounding the spiracular area at the apex 

 is curved, slightly oblique. Pleurae shining ; the meta- 

 obscurely punctured ; the oblique furrow on the meso- 

 wide and deep and having stout, widely separated keels ; 



