Rivport on a Collection of African Locustidse. 79 



followed by a black, and then by an orange spot on each side ; space 

 behind the eyes black, lower parts of head whitish, with black dots 

 and whitish tubercles ; a large pale tubercle on each side near the 

 middle of the face. Thorax very rugose and tuberculate, front edge 

 with two black tubercles in the middle, hinder edge rounded and 

 lobate, the middle lobe and the lateral angles tipped with orange, be- 

 tween which are five black tubercles on each side. Tegmina rounded, 

 tuberculate, not longer than the metathorax. Abdomen and hind 

 femora slightly tinged with reddish, and with numerous small white 

 tubercles. Legs above clay-yellow, indistinctly mottled with darker ; 

 knees and tibias varied with blackish. Hind femora beneath and 

 within yellowish, spotted with black on the carinee. Under-siu'face 

 of body mostly yellowish ; pectus irregularly spotted with black ; 

 abdomen with a double row of large black spots, and a row of 

 smaller dots above the lateral division. 



Female. Similar, but larger and darker, the antenna' and tibiae 

 black, banded with grey ; in one specimen the lower part of the face 

 is blackish. In some specimens the whole insect is much veined 

 with whitish ; the face, the hinder lobe and part of the middle 

 lobe of the prothorax, the pleura, and the greater part of the basal 

 half of the hind femora being whitish with black spots. The tegmina 

 are longer than in the male, extending to, or nearly to, the extremity 

 of the smooth basal half of the first segment of the abdomen. The 

 upper lateral spots on the abdomen much larger than in the male. 



Long. corp. ^ 12 millim. ; 9 19-21 millim. 



Hab. Transvaal : Waterberg, Warm Baths {Distant). 



Described from one male and two female specimens of 

 the dark form, and two female specimens of the pale form, 

 which may possibly prove to be distinct when the genus is 

 better known. 



There appear to be several species of Chrotogomts allied 

 to C. hcmij^tcrus, Schaum, the description and figure of 

 which were probably taken from specimens bleached by 

 spirit. I am not sure that it has yet been satisfactorily 

 identified. 



51. Clirotogonus rcnclalli, sp. n. 



Long. corp. cum tegm. 19-20 millim. 



Very similar to the last species, but rather narrower, and with the 

 orange markings almost obsolete. Colour brownish-grey, mottled 

 with blackish on the thorax. Front edge of prothorax with two black 

 central tubercles ; hinder edge with two large ones on each side of 

 the central line, and one or two smaller ones in addition. Face, 



