156 Transactions South African Pliilosopliical Society, [vol. xii. 



highly tectiform except the sixth, the second is tectiform only near 

 the base, but more convex than the sixth, and the fifth is distinctly 

 carinate in the male ; pygidium sub-vertical, rounded at apex, deeply 

 punctate ; legs flavous, spotted with greenish bronze ; under side and 

 legs villose. 



Male : Clypeal carina very short and slightly incised at middle, 

 frontal carina with a very slight, median projection very much less 

 rounded laterally behind than in the female ; prosternum armed with 

 a very long compressed process diagonally truncate at tip, and with 

 both ends slightly furcate (fig. 11a) ; anterior femora with a sub- 

 vertical conspicuous conical tooth set nearer to the apex than 

 to the middle in the inferior edge, and two smaller equi-distant 

 ones on the upper edge, anterior tibiae long, not very arcuate and 

 with the terminal mucro hardly curved ; distinctly quadri-dentate 

 outwardly, serrulate inwardly for half the length from the base, 

 sub-laminate from there to the tip, the lamina being very narrow, 

 sinuate, and nearly carinate and contorted at tip, underneath there 

 is a median vertical tooth ; intermediate femora with a conspicuous 

 sub-median tooth beneath, trochanters sub-spinose, tibi^ with three 

 very sharp teeth outwardly, and the space between the first and the 

 second is more deeply incised than between the second and the 

 apical one ; posterior femora and tibiae normal. 



Female : Clypeal carina arcuate, longer than that of the male, 

 frontal carina with a compressed vertical tooth, sharp at tip and 

 very conspicuous ; prothorax more attenuate laterally from the 

 median part towards the basal angle ; prosternum without any 

 process, metasternum carinate at tip and sub-aculeate ; legs normal. 



Length 14-17 mm. ; width 8-9 mm. 



This species is probably met with in the whole of the Cape Colony, 

 -and occurs also in the Transvaal (Potchefstroom, Lydenburg). 



CHEmoNiTis scABKOsus, Fabr., 



Plate XXXIV., fig. 16 ; Plate XXXVIII., fig. 8. 



Gen. Ins. Mant., p. 209. 



Herbst., Kaff., ii., p. 189, pi. 13, fig. 9. 



Voet., pi. xxv., fig. 23. 



O. apelles, Fabr., Spec. Ins., i., p. 13. 



Oliv., Ent. i., 3, p. 141, pi. xi., fig. 97. 



Light testaceous, with a bronze tinge deepest on the prothorax ; 

 head with the exception of the vertex, sides of prothorax, and under 

 side of legs flavescent, with a slight greenish tinge ; clypeus emarginate 



