Ciuciilionidio/;'c'7/i South Africa, 539 



S U 1 ) f U m i 1 \- TIO RBHYXCUIIfJE. 

 Genus CllALEPODERUS, llOV. 



Head globose ; the eves prominent, their upper surface 

 oil a level with the foreliead. liostrain stout, dilated at the 

 apex, the dorsal area inueh higher at the l)ase than the 

 forehead; the scrobes apical, deep, curved, and converg^ent 

 beliind, so that the dorsal area is constricted in the middle ; 

 the epistome bounded by a high sharp curved carina, and 

 rather deeply emarginate on the anterior edge ; the man- 

 dibles trisetose, uith an obtuse median tooth and a sharp 

 longitudinal carina ; the mentum cordiforni, resting on a 

 very small peduncle, and with only two setae, near the front 

 margin ; the lower surface of the rostrum only as long as 

 the buccal cavity behind the closed mandibles. Antennce 

 with the scape exceeding the front margin of the prothorax; 

 the funicle squamose ; the club ovate, acuminate. Pro- 

 thorax with the front margin truncate laterally ; the front 

 oox?e in the middle of the prosternum. Elytra 10-striate, 

 without true shoulders. Sternum with a tubercle behind 

 the front coxae ; the mesepisternum reaching the elytra, the 

 epimeron much reduced ; the metasternum much shorter 

 than the mid-coxae; the episternal suture obliterated in 

 the apical half; the hind coxie reaching the elytra. Leys 

 without a trochanteral bristle ; the femora unarmed ; the 

 tibiae straight, minutely denticulate internally, shortly 

 mucronate, the hind pair dilated at the apex, the corbels 

 broadly enclosed and bare; the tarsi spongy beneath, the 

 claws free and with a basal seta. Venter with the intercoxal 

 process broadly truncate, but narrower than a hind coxa; 

 ventrite 1 (3) with the apical margin truncate, 2 (4) a little 

 longer than either of the next two, 5 (7) forming an 

 equilateral triangle with the apex rounded in $ , much 

 shorter and more broadly rounded in (^ . 



Genotype, Chalepoderus hiaticollis, sp. n. 



Allied to Pyctoderes, Schh., but in that genus the base of 

 the rostrum is not higher than the forehead ; the inner 

 edges of the scrobes are straight, so that the interscrobal 

 area is parallel-sided; the lower surface of the rostrnm is 

 much longer than the buccal aperture behind the closed 

 mandibles, which have a sharp tooth and no longitudinal 

 carina; the centrosternal piece is not tuberculate behind 

 the front coxa3, and there is a distinct trochanteral bristle ; 

 the intercoxal process of the venter is rounded at the base ; 

 and the bare portion of the corbels of the hind tibiie is 

 narrowly transverse instead of broadly rhomboidal. 



35* 



