Manchester Memoirs, Vol. xliii. (1899), No. 3. 217 



The transverse median nervure is received distinctly in 

 front of the basal ; the first recurrent nervure is received 

 shortly behind the middle of the cellule ; the areolet may 

 be absent. • 



Comes near Metopius and Bassus in some respects — in 

 the thickened legs for instance — but differs from them in the 

 abdomen not being so broad at the base. Its characteristics 

 are the thickened legs, the mesothorax dilated in the 

 middle, the large flat scutellum, and the distinctly petio- 

 lated areolet. 



The genus contains two sections. One represented by 

 .S". trilineata, having a distinct appendiculated areolet, and 

 a keel outside the metapleural spiracles ; the other repre- 

 sented by kS". crassipes, having no areolet and a keel on 

 the outer and inner side of the spiracles. Unfortunately 

 I have no females, both the species being represented by 

 males. 



SCALLAMA TRILINEATA, Sp. nov. 



Fulva, nigromaculata ; alls fulvis ; stigmate fulvo- 

 testaceo, nervis testaceis. $ . 



Long. 1 1- 1 2 mm. 



Antennae thick, dark fulvous ; the scape yellowish 

 beneath ; covered with longish, pale hair ; the flagellum 

 thickly covered with short, black hair, and becoming 

 gradually and slightly thicker towards the apex. Head 

 deep black ; the clypeus testaceous ; the mandibles and 

 palpi yellow ; the mandibular teeth black and piceous ; 

 the face strongly and uniformly punctured ; thickly 

 covered with long, glistening white hair ; the front and 

 vertex thickly covered with long, brownish hair, which is 

 longer behind the ocelli ; they are covered with shallow 

 punctures ; in front of the ocelli is a triangular depression. 

 In one specimen the eyes have a distinct greenish tint. 



