388 Dr. G. A. K. Marshall on new 



a fovea on each side containing a single minute seta ; 

 scrobes linear, deep, passing rapidly beneath the rostrum, 

 but broadly separated at the base, and not continued beyond 

 the antennae; mandibles tridentate ; the buccal cavity 

 widening from base to apex ; the peduncle of the submentum 

 much longer than broad, about twice as long as the small 

 subcircular mentum. Antenna inserted well beyond the 

 the middle of the rostrum in both sexes ; scape long, 

 slender, cylindrical, gradually clavate at the apex, as long as 

 the funicle, but not reaching the eye; funicle 7-jointed; 

 club elliptical, 3-jointed, with the incisions transverse. 

 Prothorax broader than long, the apex much narrower than 

 the shallowly bisinuate base ; the apical margin truncate 

 and without postocular lobes. Sculellum small, elevated. 

 Elytra subtriangular, much broader at the shoulders than 

 the base of the prothorax, thence rapidly narrowing behind ; 

 the apices separately rounded, the lateral margins not 

 sinuate; ten complete strise. Wings functional. Legs stout, 

 moderately long ; the front coxae contiguous, the mid pair 

 narrowly separated, the hind pair very widely so and 

 meeting the elytra ; the femora very thick, pedunculate at 

 the base, the anterior pairs with a short stout tooth, the 

 hind pair with a very large triangular one ; the tibise much 

 compressed, both upper and lower margins angulate, the 

 apex strongly uncinate ; the corbels of the hind tibise 

 situated on the inner face, large, bare, narrowly enclosed, 

 being bounded externally by a sharp carina ; the tarsi 

 squamose, the 3rd joint very broadly bilobate, the 2nd 

 longer than broad, the 4th as long as the 2nd ; the claws 

 rather small, strongly divaricate and appendiculate at the 

 base. Sternum with the fjular margin deeply sinuate, 

 the coxae situated in the middle of the prosternum, and no 

 centro-sternal tubercle ; the mesosternum sloping very 

 steeply, almost perpendicular, the central process forming 

 a low vertical tubercle with a bifid tuft of scales, the epi- 

 sternum almost an equilateral triangle, the epimeron about 

 one-third smaller ; the metasternum at its shortest rather 

 longer than the mid-coxae, the episternum rather broad and 

 angulate internally at the base. Abdomen with the ventrite 1 

 nearly as long as 2-5 together, the intercoxal process very 

 broadly truncate, broader than the coxae ; ventrite 2 

 separated from 1 by a deep bisinuate incision, but immobile 

 and shorter than 3 + 4; 5 as long as the three (<J ) or two 

 (?) preceding ventrites, and broadly rounded at the apex 

 in both sexes ; ventrite 6 (withdrawn) membranous, with 

 two thinly chitinized transverse patches (text-fig. 4, a). 



