260 [April. 



length ; the 8th extending to the hvimeral angle, where it iinitcs with the 7th and 

 9th ; apically, the 3rd, 7th, and 9th are united, the 5th (which is the shortest of 

 all) being enclosed by the 3rd and 7th, and the 8th by the 7th and 9th ; under-side 

 sparsely pilose, flanks of prothoi-ax and sterna sparingly and rather coarsely punc- 

 tured ; legs shining chestnut-red. 



Length, from apex of thoracic process to apex of elytra, 5 lin. ; width of elytra 

 IJ lin. 



9 . Smaller and sliorter (long. 4i lin.), head and prothorax simple, the latter 

 rather deeply arcuate-emarginate in front, and with the median furrow apparent 

 only at the base ; elytra with the 7th, 8th, and 9th intervals only faintly costiform. 



Hob. : 'Nevf Grrauada ; two examples, (^ and ? . 



M. CLTPEATUS, Sp. n. 



Smaller than the preceding, the epistomatal horn situated on the disc (not at the 

 middle of the fore margin), and, together with the horn arising from the inner 

 corner of each eye, moderately elongate, semi-erect, sub-cylindric, obtuse at apex ; 

 antennae short, joints 7 — 10 rather strongly transverse, very moderately perfoliate ; 

 prothorax decidedly transverse, a little convex, moderately punctured, the punctures 

 largest near the sides, an impression at each side the middle at the base, but without 

 any trace of a median furrow, the anterior processes three in number, two at the 

 sides — arising within, and distinct from, the lateral margin — robust, moderately 

 long (extending over the head to a little beyond the level of the insertion of the 

 autennse), slightly converging, obliquely truncated, and distinctly notched at the 

 apex ; the 3rd is central, about one-third the length of the two others, cyliudric, 

 strongly compressed, rounded at apex ; elytra seriate-punctate, almost obsoletely so 

 at the apex, intervals (except the 7th, which is slightly elevated) flat, very minutely 

 and very sparsely punctulate ; flanks of prothorax with a few small, scattered punc- 

 tures ; legs shining chestnut-red ; body hairh^ss. 



Length, 3| lin. ; width of elytra, 1^ lin. 



Sab. : Cumana ; a single ( ^J ) example. 



Var. ? BRETICOKNIS. 



Ib this, whicli I doubtfully coiipidcr as a variety o£ the preceding, 

 or one in which the full development of the armature of the head and 

 the prothorax has been arrested, — the three horns on the head are 

 faintly represented by small conical tubercles ; the three thoracic 

 processes are much shorter, the two outer (which do not nearly extend 

 to the level of the insertion of the antenna?) are stout, conical, and 

 not at all convergent ; the central one is reduced to a short, com- 

 pressed, conical tooth ; the rest entirely as in the typical form, save 

 that it is smaller and shorter. Long. 3 lin. 



Sab. : Cumana ; a single ((^) example. 

 M. Frti, sp. 11. 



Entirely shining rufous, with the legs and palpi yellowish ; antenna' with joints 



