96 Mr. F. P. Pascoe on Additions to 



ing Avliitisli substance ; head deeply sunk in the prothorax, 

 the anterior portion spreading into two shortly triangular 

 horns ; prothorax with a very compressed disk, forming an 

 oblique elevated tuberculate lobe, extending over the head, 

 behind which are two erect well-marked conical tubercles, 

 each side anteriorly expanding into a fan-shaped, strongly 

 crenated margin, but posteriorly deeply and erosely emargi- 

 nate, so as to present a large and irregular space between 

 these fan-sha])ed expansions and the elytra ; scutellum appa- 

 rently large and triangular, but its limits indistinct ; elytra 

 nearly quadrate, the whole surface more or less tuberculate j 

 the disk almost vertically elevated, with two conical tubercles 

 at the base on each side, and towards the suture a line composed 

 of four or five large triangular tubercles, the last being by far 

 the largest ; a row of six smaller tubercles externally on the 

 descending side of the disk, the margin moderately expanded 

 and regularly and coarsely crenato-tuberculate, the apical 

 tubercle diverging slightly from its fellow ; body beneath co- 

 vered with a layer of the same spongy-looking substance as 

 that above mentioned, but thinner ; legs ferraginous, with a 

 sprinkling of the same substance ; antennte with the last three 

 joints forming a distinct club. Length 2\ lines. 



A remarkable and very distinct species, which I hope to 

 figure in a future communication, with further remarks on this 

 and other members of its subfamily, including the following 

 new genus. 



Mychestes. 



(Subfamily Bolitophaginje.) 



Antennce clavatte, lO-articulatae ; clava biarticulata. 



Tibice anticaj subfusiformes. 



Elytra ovata ; metasternum breviusciilum. 



Head broadly transverse, the clypeus not cornuted ; anten- 

 nary ridge simple. Eyes transverse, entire. Antennas cla- 

 vate, 10-jointed ; scape elongate, the third joint as long as the 

 scape, the rest to the eighth oblong ovate, the last two form- 

 ing an ovate club. Prothorax transverse, rounded but not 

 expanded into a border at the sides ; the disk gibbous towards 

 the apex, overhanging and concealing the head from above. 

 Elytra ovate, convex, closely applied to the prothorax ; the 

 epipleura; indeterminate. Legs moderate ; femora not thick- 

 ened ; tibige subfusiform, scarcely compressed ; tarsi with the 

 terminal joint as long, or nearly as long, as the rest together. 

 Pro- and mesosterna simple. Metasternum short. 



This genus differs from Orcopagia [ante^ vol. iii. p. 30) 



