428 P. CAMERON. 



are large, curved, stout, the central longer than the others. Wings 

 hyaline, the nervures black, cf. Length 4 mm. 



Front and vertex distinctly, but not very closely or strongly punctured; 

 the projection below the antennae with a row of punctures in the centre. 

 Face, except in the middle, finely, closely transversely striated. Pro- 

 and mesothorax strongly punctured, the punctures clearly separated. 

 Scutellum more strongly punctured than the mesonotum, its apex 

 with a broad margin which is slightly incised in the middle of apex ; 

 there is a widely crenulated depression behind the margin. Meta- 

 notum with three rows of arese ; the basal has only small central and 

 irregular outer arese, the second row has them square ; the third has 

 them more irregular. 



Mendoza, April. 



11. Octosmicra carinifoveata sp. n. 



Black, a spot, longer than wide, obliquely narrowed below over each 

 antenna, a line round the apex of the pronotum with a short branch 

 projecting obliquely from either side of the middle at the base, tegulae, 

 a line, rounded on the innerside, along the inner side of the parapsidal 

 furrows, a wide conical mark (the narrowed end at the base) on either 

 side of the basal half of the scutellum, the greater part of the top of 

 the abdominal petiole, a narrow interrupted line, not reaching to the 

 outer edge, on the apex of the first abdominal segment, the basal half 

 of the second, narrow lines on the apices of the others, the greater part 

 of the sixth, and the sides of the eighth, bright lemon-yellow. The 

 apices of the four anterior femora above, their under side, the tibiae 

 except for a black longish broad line above and the tarsi rufo-testace- 

 ous, as are also the hinder tibiae and tarsi, except for a yellow band 

 near the base of the tibiae ; the hind femora black, a bright lemon- 

 yellow line runs on the top from the base to the apex, becoming wider 

 towards the apex, where the narrow black upper border is also wider ; 

 at the base this line is continued, slightly more widely to the basal 

 tooth, and, close to the apex it is continued to the apical teeth as an 

 irregular indentation, which becomes gradually roundly narrowed 

 towards the teeth, it having an incision near the top of the outer part, 

 so that it is widest below the middle ; on the inner side close to the 

 apex is a large mark, narrowed in the middle, at the base and apex 

 and extending right across the whole surface. The apical femoral 

 teeth are large, sharp-pointed and widely separated ; the basal are 

 small, stumpy and close to each other. Wings hyaline, suffused with 

 fulvous, the nervures dark fulvous, d 1 . Length 7 mm. 



Sides of front stoutly closely obliquely striated ; the depression 

 smooth, with a stout keel down the center, ending below in a wide 

 conical dilatation. Face closely transversely reticulated. Occiput 

 finely, closely transversely striated. Pro-, mesonotum and scutellum 



