Coleopterological Notices, VII. 647 



punctured, the intervals feebly convex. 3Ietasiermim finely punctured and 

 pubescent toward the coxse and along the depressed epipleurse, which become 

 •wider behind. Tibiae distinctly pubescent, the middle and posterior without 

 trace of external spinules. Length 34.0-35.0 mm.; length of prothorax in 

 the larger 8.5, width 11.5 mm.; length of elytra 19.7, width 12.0 mm. Hon- 

 duras. 



Closely allied to corticola but shorter, with the elytra, especi- 

 ally, less elongate and distinguished besides by the smaller, 

 deeper and narrower apical concavity of the labrum, cariniform 

 lateral limits of the plane of the clypeus, which are wanting in 

 co7Hicola, in the smaller cephalic process with smaller median pro- 

 tuberance and less angulate lateral lobes, in the deeper, longer 

 and strongly rugose apical part of the lateral thoracic groove, and 

 in many other features. The small clypeal projections in the 

 Guerrero examples of corticola before me, are much feebler and 

 more widely separated than in the figure of Kaup, this distance 

 being fully ^ the entire width of the head ; in the present species 

 it is even greater still. 



Terres cavilaliris. — Parallel, rather stout and broadly convex, the 

 elytra deplanate above and rather abruptly but deeply vertical at the sides; 

 tipper surface highly polished and glabrous throughout, except the short sparse 

 pubescence on the vertical wall of the elytral base. Head % as wide as the 

 prothorax, the upper surface somewhat as in the preceding species, except that 

 the posterior margin of the posterior ambient depression, which is broad, feeble 

 and indefinite throughout, seems to he indefinitely limited, the supra-orbital 

 ridges acutely carinate anteriorly and globularly dilated internally behind, 

 the central process much longer, with a long slender median projection, and 

 the lateral lobes more angulate, also in the form of the frontal ridge; the latter 

 is at a slight distance in front of the deep horizontal excavation extending 

 under the horn, and is transversely and feebly arcuate, ending, at lateral third 

 of the entire width of the head, in an abrupt and strongly marked tubercle and 

 not extending further toward the sides; the clypeus between this ridge and 

 the tip is rapidly declivous, the apical margin broadly emarginate, with a 

 broad and still more pronounced sinus at the middle, exposing a transversely 

 truncate pale coriaceous piece between the upper surface of the labrum and 

 under surface of the clypeus; the emargination nearly equals % of the entire 

 width of the head in extent, and is limited at each side by a prominent angu- 

 lar projection, not connected at all with the tubercle forming the extremity of 

 the transverse frontal ridge; labrum about as long as wide, rather deeply 

 sinuate at tip, the surface deeply and abruptly concave in a parabolic area ex- 

 tending to basal fourth and including the apical sinus anteriorly; mandibles 

 unusually developed. Prothorax about % wider than long, the apex much 

 advanced toward the middle and transverse at tip, very oblique and subsinu- 

 ate laterally to the broadly rounded angles; lateral groove obsoletely and re- 



