*■ South African GrassJwppers. 375 



2. Prostethopltyma minor, sp. n. (Fig. 1, B.) 



S- Smaller and more slender thaa P. cephalica, Bol. 

 Aiiteniipe extending well beyond the hind margin of the 

 pronotum. Head very strongly reclinate ; frontal ridge 

 ])arHllel thronghout, scarcely narrowed at the fastigium, 

 where it is strongly convex and sparsely punctured, while 

 the rest is flat, with a very shallow impression below the 

 middle ocellus and covered with strong, though not dense, 

 impressed points ; face strongly punctured, but less so than 

 in P. cephalica ; facial keels reaching the clypeus. Fas- 

 tigium of the vertex as in P. cephalica ; temporal foveolte 

 scarcely perceptible, indicated by puncturation. Median 

 keel of the pronotum low and rather thick, interrupted in 

 its middle by the typical sulcus ; lateral keels feeble, 

 distinctly (and more than in P. cephalica^ convergent 

 towards the first sulcus, strongly divergent behind, not 

 reaching the hind margin, both front and hind part of 

 each keel being straight ; hind angle of the pronotum 

 obtuse. Venation of the elytra much like that in P. cepha- 

 lica, but differing in the following points : externo-median 

 area more dilated, twice as broad as the scapular area and 

 subequal in its width to the interulnar area, which is less 

 dilated than in P. cephalica ; discoidal area a little wider 

 than in P. cephalica, and regularly transversely venulated 

 except the very base. 



Coloration as in P . cephalica, but paler. Lateral lobes of 

 the pronotum with only an elongate pale callous spot below 

 tlie middle, instead of a more narrow longitudinal callous 

 line extending across the lobes as in P . cephalica. Elytra 

 hyaline, spotless, with the apex strongly infumate and with 

 a pale callous streak in the basal half of the scapular area. 

 Wings as in P. cephalica. Hind femora on the outside 

 greyish yellow, with brownish points along the upper 

 carina ; the upperside with very indistinct transverse 

 fasciae ; the inside orange-red, with a blackish fascia before 

 the apex and a blackish spot at the middle of the upper 

 margin ; the lower sulcus of the femora yellowish ; the hind 

 knees black. Hind tibioe with black condylus, pale basal 

 third, bright red in the rest. 



$ (paratype). Differs from that of P. cephalica by the 

 smaller size and some characters in the venation of the 

 elytra : the hind radial vein is more bent backwards and the 

 externo-median area is therefore broader and with regular 

 transverse reticulation ; the discoidal area is regularly trans- 



