6i Mr. J. S. Baly on 



Hah. — Ecuador. 



Thorax more than twice as broad as long ; sides trun- 

 cate at the apex, then subobliquely enlarged to the 

 middle, straight and parallel from behind the latter to 

 the apex; disc slightly concave on either side, trans- 

 versely convex in the middle, impressed in the medial 

 line with a faint longitudinal groove ; surface subnitidous, 

 very finely and subremotely punctured, very sparingly 

 clothed with short adpressed sericeous hairs ; elytra twice 

 as broad at their widest part as the thorax, shoulders 

 broadly ampliate-rotundate, the humeral angles entirely 

 obsolete ; sides rounded and narrowed from the middle to 

 the apex, the latter conjointly rounded ; upper surface 

 of disc convex, the highest portion of the convexity, 

 especially in the ^ , being before the middle ; surface 

 covered with raised, shining, impunctate reticulations, 

 which enclose irregular, opaque, punctured areolae, these 

 spaces are frequently covered with small reticulations, 

 which render the large ones less defined. 



Mesomphalia ijectinata. 



Rotundata S > postice attenuata ? , modice convexa, 

 nigro-asnea, subopaca, pube adpressa grisea sparse ves- 

 tita, subtus nitida, antennis nigris ; thorace longitudine 

 duplo latiori $ , paullo latiori S , lateribus ab apice ad 

 longe pone medium oblique ampliatis, basiipso subrectis, 

 disco pube adpressa vestito ; elytris thorace latioribus, hu- 

 meris late rotundato-ampliatis, angulis obsoletis ; lateribus 

 a medio ad apicem angustato-rotundatis (postice magis 

 angustatis ? ) , disco modice convexis, elevato-reticulatis, 

 reticulo subnitido, areolas magnas, opacas, obsolete punc- 

 tatas includenti ; margine laterali late explanato, crebre 

 sed tenuiter punctate, vix oblique, vitta submarginali, 

 fere a basi ad apicem extensa, intus ramulos nonnuUes 

 (circa 5) ad disci marginem emittente, pallide flavo-fulva, 

 ornato. 



Long. 9-10 lin. 



Hah. — Ecuador. 



A broader and shorter insect than M. Buchleyi, less 

 convex, sides of the thorax much more obliquely dilated, 

 more coarsely pubescent ; the reticulations on the disc of 

 the elytra are also larger, and enclose opaque, nearly 

 impunctate areolte ; the pattern on the lateral margin is 



