324 Mr. W. L. Distant's Bhynchotal Notes. 



the anterior lateral processes robust, hroad, directed out- 

 wardly and a little upwardly, their apices subtruncate ; 

 posterior pronotal process tricarinate, impinging on tegmina 

 immediately beyond scutellum, gradually narrowing to apex, 

 which is subacute, and passing posterior angle of inner 

 tegrainal margin. 



Long. 8i mm.; exp. lat. pronot. process. 5 mm. 



Hab. Borneo ; Mt. Matang {B. Shelford). 



Centrotus albilutus. 



Centrohis albilutus^ Walk. Journ. Linn. Soc. Lond., Zool. x. p. 184 

 (1868). 



Hab. New Guinea. 



Genus Tshaka. 

 Tshaka, Dist. Insect. Transvaal, pt. ix. p. 214 (1908). 



Tshaka undulutus, sp. n. 



Head, pronotum, scutellum, aiid body beneath black ; 

 legs more or less castaneous, the tarsi ochraceous ; tegmina 

 flavescent, the veins darker, especially on the apical area, 

 base and a small costal spot beyond middle black, a small 

 castaneous spot at posterior angle of the inner tegminal 

 margin ; pronotum strongly, centrally, longitudinally cari- 

 nate, the posterior process tricarinate, undulate, impinging 

 on tegmina before the posterior angle of the inner tegminal 

 margin, and then recurved and running almost parallel with 

 it to beyond the posterior angle, the apex subacute ; lateral 

 pronotal processes robust, their apices sligiitly recurved and 

 subacute ; scutellum about as broad as long, its apex 

 bispinous. 



Long. 5 mm.; exp. pronot, process. 4 mm. 



Hab. Mashonalaud ; Salisbury (G. A. K. Marshall). 



Allied to T. naturalis, Dist.^ from the Transvaal, but with 

 the posterior pronotal process shorter, more robust, more 

 convexly arched over the scutellum, and the apical area more 

 recurved ; tegmina shorter and proportionally broader. 



Platybelus escaleranus, sp. n. 



Head, pronotum, scutellum, body beneath, and legs 

 blackish brown ; a pale spot at each basal angle of the 

 scutellum ; tegmina subhyaline, apical margin ochraceous, 



