BY P. CAMERON. 653 



sculpture. Scutelluni larger than usual, somewhat pyriform, 

 narrowed to a point at the base. Metathorax short; no keel 

 on the nietanotuni. 



I can refer this genus only to the T rid ijni lint'. Tribe Tridy- 

 mini. In the system of Ashmead (Mem. Cair. Mus. i, 274) it 

 runs near to Semiotellus. 



Tepperella maculiscutis, sp.n. 



Rufo-testaceous ; head, except for a triangular spot on the 

 face, the greater part of metanotuni and the abdomen, black; 

 antennae black, flagellum testaceous below, scutelluni with a 

 longish-triangular black mark in the centre ; wings clear hya- 

 line, nervures testaceous. 9. Length, 4 mm. 



South Australia ; bred from long, slender, horn-like galls 

 on Eucalyptus leucoxylon {J . G. O. Tepper). 



Smooth, shining; head, pronotum, metanotuni, and apical 

 abdominal segments sparsely haired. 



Cleonyminse. 



Paraheydenia, gen.nov. 



Antennee slender, not thickened towards apex. Front 

 wings with a small cloud on the costal nervure at the base of 

 its apical third ; a lai-ger cloud at, and touching the stigmal 

 nervure; marginal nervures twice the length of stigmal; post- 

 marginal thickened, and projecting beyond the apex of the 

 latter. Occiput transverse, temples obsolete above. Ocelli 

 in a triangle. Eyes large, parallel ; malar space distinct. 

 Pronotum a little longer than the mesonotum without the 

 scutellum, the centre raised, widened towards the base, sides 

 with a large, oval depression below the raised centre ; it is 

 distinctly narrower than the mesonotum, which is flat, nar- 

 rowed in front and without furrows. Scutellum large, flat, 

 wider than long, rounded at the base, the apex transverse ; 

 metanotuni short, rounded, a keel running down the centre, 

 and one on either side of this on the apical half : sides bor- 



