50 [August, 



Peneta ceuvus, s]). n. 



Near P. Goudoti, Lacorcl. ; raandibiilar horns stouter and still more strongly 

 dilated at the apex, which is broadly emarginate, the inner edge having also an arcuate 

 emarginatioa close to the apex ; epistoma muchlonger and more inclined ; labrum much 

 shorter; eyes larger, extending completely up to the anterior outer angle of the 

 head, the antennary orbits not forming a projecting angle in front of them ; front 

 armed with a short, blunt horn ; head behind coarsely punctured ; prothorax coarsely 

 but remotely punctured ; reflexed lateral margins broader ; anterior angles longer ; 

 scutellum distinctly larger ; elytra more strongly punctate-striate ; prosternal process 

 wider, the end broadly rounded, broadly concave down its length. The colour above 

 is of an intense black ; the legs, antennae, &c., are pitchy-ferruginous ; the abdomen 

 bright ferruginous. Length, 3i lines. 



Hah. : Peru ; one example. 



A very distinct species, whicli must be placed between taiirus and 

 Qoudoti ; from the former it may at once be distinguished by the 

 mandibular horns being dilated and notched at the apex ; the eyes 

 being larger, and placed close to the anterior outer angle of the head ; 

 the short labrum ; the differently formed prosternal process ; &c. 



.^THALIDES, g. n. {NyctozoiJides). 



Intermediate in form and structure between Nyctozoilus and 

 Onosterrhus, but very different from both in the form of the pro- 

 thorax : this is strongly transverse, apex deeply sub-angularly emar- 

 ginate, front angles very prominent (extending beyond the anterior 

 margin of the eyes), obtuse, directed forwards ; sides moderately, and 

 somewhat parabolically, rounded, a very little sinuoiisly incurved in 

 front of the anterior angles (which makes them appear still more 

 prominent), regularly, and not at all sinuously, incurved to the hind 

 angles ; base broadly lobed in the middle, parabolically emarginate at 

 each side up to the hind angles, the lobe more prominent than the 

 angles, so that a straight line drawn across from angle to angle would 

 leave a considerable j)ortion of the lobe behind it ; hind angles sub- 

 obtuse, not at all prominent, and not touching (in repose) the 

 shoidders of the elytra ; lateral margins narrowly expanded, a little 

 concave, the edges scarcely thickened, and very narrowly reflexed. 



The mouth organs are as in Onosterrhus, and the sides of the sub- 

 mentum are similarly produced into a short, but distinct, tooth ; head 

 very broad, somewhat convex (although having a slight longitudinal 

 impression down the centre) on the crown ; antennary orbits obliquely 

 rounded, a little reflexed ; epistoma short, its sides almost continuous 

 with the antennary orbits, broadly— and very slightly arcuately — 



