8 Mr. C. C. Babingtoii's Descriptions 



nigra, elytris crebrissime nigro-irroratis, striis disci punc- 

 tatis, antennis pedibusque fusco-flavescentibus, (L, c, 4| ; 

 lat. 2h lin.) 

 Ovate, fuscous yellow above. Crown of the head black, in- 

 closing two transverse fuscous yellow spots. Antennae fuscous 

 yellow. Thorax transverse, short, broadly emarginate in front, 

 the angles prominent and acute, margins oblique, slightly rounded, 

 much broader behind, slightly sinuated, the angles acute, disk 

 smooth, with a large transverse dark spot, attenuated at both 

 ends. Scutellum fuscous. Elytra obovate, dilated beyond the 

 middle, fuscous yellow, very thickly irrorated with black, leaving 

 the exterior margin and a narrow line down the suture immacu- 

 late, the usual punctate striee faint. Body beneath black. Legs 

 fuscous yellow ; the hinder pair rather darker ; the anterior claws 

 large, but yet rather smaller than in the preceding section. 

 Hab. Monte Video, and Tierra del Fuego. 



Unfortunately the only specimens of this insect are females, 

 and therefore it may be doubted whether it has the curious claws 

 described above ; it agrees, however, so nearly with our C. 7io- 

 tatus, that I am inclined to refer them to the same group. In 

 the following species the claws are much smaller, and although 

 unequal in length, are yet similar in form, neither do they differ 

 much in the two sexes. Still a slight approach to the unequal 

 form may sometimes be detected in the males. 



b. unguiculis anticis mediocribus. 



8. (9.) C. Darwinii, Bab. 



Ovatus, supra flavescens vel fusco-flavescens, subtus niger vel 

 nigro-fuscus, vertice nigro, macula transversa flava, thorace 

 antice et postice maculaque disci nigris ; elytris plus mi- 

 nusve crebre nigro-irroratis striisque disci punctatis, antennis 

 flavis, pedibus flavis vel fuscescentibus. (L. c. 5-Q, lat. 2|-3 

 lin.) 



Ovate, flavescent, fusco-flavescent, or fuscous. Crown of the 

 head black, with a transverse flavescent spot, which is connected 

 by its middle with the anterior concolorous part of the head, so 

 as to form a T shaped mark. Antennae yellow. Thorax of the 

 same structure as the last, margined before and behind more or 

 less broadly with black, and an ovate transverse spot of the same 

 colour on the disk. Scutellum black. Elytra ovate, dilated 

 slightly beyond the middle, flavescent or fuscous yellow, thickly 

 irrorated with black, in some specimens so thickly as to make the 



