294 THE ENTOMOLOGIST. 



Head flat, fulvous, with black punctures or entirely black with a 

 fulvous spot at the middle ; antennae fulvous, the fifth and following 

 joints transverse; thorax with the middle portion raised into a regu- 

 larly-rounded elevation, which is surrounded at the base by a distinct 

 sulcus ; the top of the elevation has two feeble short ridges, and at the 

 sides several small blunt tubercles are placed ; the entire surface is 

 closely impressed with black punctures, but the amount of fulvous is 

 very variable ; elytra punctured like the thorax, generally black, with 

 the tubercles and ridges generally of fulvous colour ; of the first- 

 named, two are placed near the suture, one before, the other below the 

 middle ; the ridges are confined to the sides, and the one from the 

 middle of the base to the suture is interrupted by some short trans- 

 verse raised tubercles before the middle ; the posterior portions of the 

 elytra are reticulate, and have a few small tubercles ; the pygidium is 

 carinate at the middle, and to a less extent at the sides ; the legs are 

 black, spotted with fulvous, or the anterior ones only are of the latter 

 colour ; prosternum strongly triangularly widened at the anterior half, 

 suddenly reduced to a ridge below the middle. 



Hah. Mexico. 



I am afraid it will not be easy to distinguish this small 

 species from its numerous congeners, on account of its varia- 

 bility in regard to coloration, and it is so closely allied to so 

 many others that it is difficult to name its nearest ally ; it may, 

 however, be compared perhaps best with C, signaticollis, Lac, 

 which is of very nearly similar coloration, but differs in the 

 ridges at the sides of the thorax ; this part in the present species 

 has the outer sides very closely punctured, and the punctures 

 are only here and there interrupted by feeble callosities ; at the 

 top of the elevation two short narrow ridges are seen, which do 

 not extend to the anterior margin, the elytra are punctured like 

 the thorax, and all their tubercles and ridges are small or not 

 strongly indicated ; a more highly raised and somewhat elongate 

 tubercle, however, is placed near the suture, at some distance 

 from the apex. This species was not known to me during the 

 publication of the Biolog. Centr. Amer. dealing with the Phyto- 

 phaga, but I have since received five specimens. 



Sagra humeralis, sp. n. 



Short, oblong, purplish black, the shoulders golden cupreous, the 

 thorax and elytra very finely granulate-punctate. 



Mas. The posterior femora strongly ovately widened, with three 

 small teeth, their tibije with a long spur-like tooth at the middle. 

 Length 11 millim. 



Head very closely and finely punctured throughout, opaque, the 

 oblique anterior grooves very shallow ; antennfe scarcely extending to 

 the middle of the elytra, purplish black, the basal joint subquadrate, 

 the second small, the third and following joints very gradually 

 lengthened, terminal joint elongate, subcylindrical, its apex conical ; 

 thorax scarcely one half broader tban long, the anterior angles strongly 

 thickened and produced outwards, the surface finely and closely punc- 



