new Species 0/ Ilisteridre. 273 



excavato ; prosterno parum late marginato ; pygidio deusc punc- 

 tato ; tibiis antice intus baud dentatis. 

 L. 4| mill. 



Cylindrical, rather elongate, and robust, black and shiniii:i-; 

 the head, rostrum is rounded off at the apex, not reflexed (the 

 figure for T. luteiventris, Mars. Mon. 1860, pi. 15. fig. 4, ^ , 

 fairly represents the outline and im])ressions of the rostrum, but 

 the apex in bellalor is move rounded), there is a median rather 

 broad and slightly raised carina with a lateral impression on 

 either side, tlie impressions are widest between the eyes; the 

 thorax is very finely and sparingly punctured on the disk, 

 more distinctly laterally and rather densely beliind the anterior 

 angles, beliind the neck tiiere is a wide, somewliat triangular 

 excavation, but it is rounded off posteriori}-, and w hen viewed 

 sideways the posterior edge is seen to be distinctly elevated; 

 the elytra are more closely punctulate than the disk of the 

 thorax ; the propygidium and especially the pygidium are 

 densely punctured, the latter is convex and a little pilose ; 

 the presternum is parallel laterally, but very slightly widening 

 at the base, the marginal stria meets anteriorly but does not 

 continue round the base, laterally it leaves rather a wide 

 margin ; the mesosternum has an arched outline in front and 

 an entire marginal stria ; the metasternum has a narrow 

 median canaliculation and is sparsely punctulate, the points 

 are much clearer than those on the mesosternum, which are 

 sparse and almost microscopical ; the anterior tibise are 4-5- 

 dentate and the interior edge is angulate at the base and not 

 toothed. 



This species must be placed near T. hisulcifrons, Mars. ; the 

 general outline, form of the head, and parallel prosternuni are 

 similar, but in T. hisulcifrons the prosternum is bordered with 

 a narrow carinate stria. 



Uab. Brazil, *' Sao Faulo, val de Pardo " [E. Grounelle). 



COPTOSTETHUS, gen. nov. 



Gen. Trypetico forma similis. Corpus cylindricum, truncatura ; pro- 

 notum parallelum; pygidium subconicum vel convexum; pro- 

 sternum utrinque truncatum ; mesosternum antice obtusum ; tarsi 

 omnes graciles. 



The type I have taken for this genus is IVi^ponceus pro- 

 bo6cidtus, V. : the species have the facies of Tri/peticus rather 

 than Tryponceus ; tlie prosternum has the shape of a parallelo- 

 gram whose angles are all right angles. In Trypomeus the 

 prosternum is widest at its base. 



