34 Annals of the South African Museum. 



"Chelonus vaalensis, sp. nov. 



Length nearly 6 mm. $ 



Transvaal. 



Very closely related to the above, and identical in colouration is. 

 a species in my collection. The two may be distinguished as. 

 follows : — 



First abscissa of radius distinctly longer than the second ; the 

 apical half of the mesonotum distinctly, somewhat strongly re- 

 ticulated ; the middle with a keel extending from the apex to near 

 the base ; the abdominal spots rounded gradually on the inner side, vaalensis. 



First abscissa of radius not distinctly longer than the second ; the 

 apical half of mesonotum not reticulated, without a keel down the 

 middle, the abdominal spots obliquely widened towards the apex, cnitliropus. 



The mesonotum at the sides of the basal half of the scutelluiu is 

 punctured, smooth at the apex. Metanotum rugosely alutaceous ; 

 the two central keels are straight, parallel, forming an ai'ea which is 

 about one-fourth longer than wide. Abdomen to the end of the 

 spots strongly reticulated ; the apex more finely, irregularly reticu- 

 lated-striated, the apex alutaceous. Legs red ; the tarsi blackish ; 

 the hind tibiae dark rufous, largely tinged with black, especially on 

 the inner side, except at the base, and more widely at the apex ; 

 near the base is a broad white line. At the base of the scutellum 

 are six stout keels, forming five deep arese. Scutellar keel not pro- 

 minent. Prostigma thick, whitish. 



h. One large curved tvhite mark on the base of the abdomen. 



Chelonus curvimaculatus, sp. nov. 



Black, a broad yellowish-white band on the base of the abdomen, 

 its apex roundly dilated, its base roundly, broadly incised, the lateral 

 basal continuation narrow ; the apices of the four anterior femora 

 broadly, their tibiae and tarsi; a broad band on the hinder tibiae 

 near the middle and the tarsi, except at the apex, yellow, tinged with 

 testaceous. Wings hyaline, the costa and nervures pale testaceous ; 

 the large stigma black, fuscous behind. $ . 



Length 3 mm. 



Cape Colony. Cape Town. 



Alutaceous, covered with a short white pile. Base of mesonotum 

 with a short keel down the middle ; its apex broadly depressed in 

 the middle, irregularly longitudinally striated, the striae irregularly 

 curved, forming almost reticulations. Metanotum coarsely rugosely 



