560 CLASS INSECTA. 



sents a small one, in which the labrum is engaged. The 

 corslet is depressed along its sides. The antennae are shorter 

 than it, for the greater part grained, with the last articula- 

 tion lenticular and transverse. The elytra are rough or 

 striated. The spurs of the legs are very small, and the 

 anterior two are broader, and triangular in many species. 



O. Sabuloszini, Silpha Sabidosa^ Lin. Oliv. Col. III. 56, 

 i. 4. 



2d. — Those whose body is narrow and long, almost of the 

 same breadth, or broader posteriorly, with the corslet almost 

 square, almost as long, at least as broad, and whose antennae 

 form a thick knob, or ai'e dilated abruptly at their extremity. 



Some have the antennas thick, cylindrical or fusiform, per- 

 foliated, hairy, appearing composed of only ten articulations, 

 the eleventh or last being short, and but little distinct ; the 

 second is as large as the following. 



CoRTicus, Dej. Sarrotrium, Germ., 



Whose antennae are cylindrical, and terminated by a larger 

 articulation, forming a small knob. {Sm'rotrium celtis. 

 Germ. Ins. Spec. Nov. p. 146.) 



Orthocerus, Lat. Sarrotrium, Illig., 

 In which these organs are broader in their middle, form a 

 fusiform knob, very hairy, with most of the articulations 

 transverse, and the last much more narrow than the preceding. 

 {Hispa mutica, Lin. Panz. Faun. Ins. Germ. I. 8.) 



The antennae of the others are of the usual thickness. 

 Simply grained, not sensibly perfoliated or hairy, and present 

 distinctly eleven articulations. 



Chiroscelis, Lam. 



Have two strong teeth at the exterior side of the first two 

 legs, and the antennae terminating in a small knob, almost 



