South African Grasshoppers. 101 
part ; median keel well developed, cut by all three sulci; no 
lateral keels ; the fore margin rounded ; hind margin with 
a broad, but not deep, obtusangular emargination in its 
middle. Lateral lobes of the pronotum much longer than 
high, strongly narrowed downwards; their fore margin 
oblique, feebly sinuate, forming a right angle with the 
straight lower margin ; the hind margin more oblique than 
the fore margin, slightly concave in its lower part; the hind 
angle a little more than 90°. The whole surface of the 
pronotum, except a callous stripe along the lower margin 
of the lateral lobes, is very coarsely punctured. Prosternal 
spine very strongly laterally compressed, short, bent back- 
wards, with the apex, as seen in profile, angulate. Sternum 
strongly laterally compressed; sternal plate nearly three 
times as long as broad, coarsely punctured throughout. 
Mesosternal lobes elongato-rhomboidal ; their length nearly 
equal to their joint width ; their inner margins touching 
each other along the straight median line ; the fore mar- 
gins forming a very obtuse rounded angle, the hind 
margins forming a slightly less obtuse angle. Metasternal 
lobes a little shorter than their joint width at the fore 
margin, distinctly narrowed posteriorly, touching each other 
along the median line. Elytra reaching to the middle of 
the abdomen and almost reaching the hind knees, narrowed 
towards the lanceolate apex. Wings distinctly shorter than 
the elytra, two and a half times as long as they are broad. 
The legs as in the genus Jschnacrida. 
Genotype: Pretoriana klerki, sp. n. 
This curious genus is closely related to the genera /schna- 
crida and Rhamphacrida, but is very easily recognized by 
the quite peculiar shape of the head, as well as of the 
antenne. 
1. Pretoriana klerki, sp. n. 
?. Antenne reaching to the middle of the metazona, 
brown. General coloration buff. Face brown. Sides of 
the fastigium of vertex brown, its middle part paler, with a 
blackish longitudinal fascia fading gradually towards the 
occiput, where it becomes greyish white, bordered with buff 
lateral fasciz ; the rest of the occiput greyish white ; cheeks 
somewhat brownish, with a pale longitudinal fascia along the 
lower margin, which extends also across the lower margins 
of the pronotal lobes and into the pleure, gradually fading 
backwards. Disc of the pronotum buff, with a not sharply- 
defined reddish-brown fascia along the median keel, which is 
