Coleoplerological Notices. 193 



advanced in the middle, abruptly terminating at each side at the antero- 

 superior margin of the eye ; they are ll-jointed, moderate in length, very 

 strongly flattened ; when viewed on the compressed side the sides are parallel 

 as far as the fourth joint, thence narrowed to the base of the third ; first joint 

 rather slender, longer than wide ; second slightly narrower, much shorter, 

 subcylindrical, longer than wide ; third obconical, slightly longer than wide, 

 compressed ; fourth about as long as wide, obtrapezoidal ; remaining joints 

 subequal, truncate at base and apex, with the sides almost parallel, in close 

 contact throughout the width, rather more than one-half wider than long on 

 the compressed side, and very slender, fully one-half longer than wide on the 

 edge, the eleventh joint slightly shorter than the two preceding. Apical mar- 

 gin of the epistoma membranous, truncate, the labrum large, prominent, wider 

 than long, with the apical angles broadly rounded, the apex with a small 

 feeble median sinuation. Mandibles small, arcuate, acute and simple at the 

 immediate apex. Mentum large, equilatero-triangular, with the sides straight : 

 surface flat ; apex very narrowly truncate ; basal half corneous, apical mem- 

 branous, the dividing line feebly sinuate, not at all impressed. Licjida mode- 

 rate, wider than the apex of the mentum, rather long, with a prominent deeply 

 bifid median process, the paraglossse not well developed. Labial palpi robust 

 at base, the joints rapidly decreasing in thickness ; third subulate. Maxilla 

 moderate, feebly exserted ; lobes small, ciliate. Maxillary palpi of the usual 

 type, rather slender ; second joint shorter than the third ; fourth subulate. 

 Lower surface without trace of infra-ocular ridge, the eyes approaching within 

 a very short distance of the buccal cavity. 



Prothorax strongly developed dorsally, very feebly so ventrally. Pronotum 

 large, strongly, transversely convex, moderately narrowed from base to apex ; 

 basal angles evenly, somewhat obtusely rounded and slightly produced poste- 

 riorly, the base being incurvate and subtruncate between them. Hypomera 

 very wide, extremely strongly inflexed, parallel to the strongly inclined flanks 

 of the pronotum. Prosternum very small, extremely short in front of the coxa, 

 the latter large, conical and convex. 



Mesothorax short. Sciitellum invisible, completely concealed by the greatly 

 overlapping free edge of the pronotum. Mesosternal side-pieces ample, entire ; 

 coxae large, contiguous. 



Metathorax moderate. Elytra truncate, apparently connate, very short and 

 transverse, as wide as the prothorax, but slightly more than one-half as long, 

 transversely convex ; flanks strongly inclined, the epipleurse very strongly 

 inflexed and almost parallel to the flanks, deep ; suture very fine but distinct. 

 Metasternum wide ; episterna narrow, parallel ; coxae moderate, contiguous, 

 lamellate and transverse laterally. 



Abdomen at base slightly narrower than the elytra, conical ; sides rapidly 

 convergent to the acute apex and nearly straight, consisting of six segments 

 which are moderate in length, each having a single transverse series of long 

 widely-spaced apical setae above and beneath. Upper surface moderately 

 convex, the border narrow, normal, moderately deep. Lower surface more 

 strongly convex. 



Annals N. Y. Acad. Sci., V, Feb. 1890.— 13 



