292 INSECTA. 



//arjoa/icws,Dej.(l), includes those, otherwise similar to the last in the 

 pointed termination of the posterior extremity of their elytra, in the 

 males of which the four anterior tarsi are dilated; the three or four 

 first joints are in the form of a reversed heart or triangular, and 

 nearly all terminated by acute angles; they are usually furnished 

 underneath (the Ophoni excepted) with two ranges of papillae or 

 scales, with an intermediate linear space. 



The body is always winged, and generally oval and arcuated or 

 convex above; the thorax is wider than it is long, or at most nearly 

 isometrical, square or trapezoidal. The head is never suddenly con- 

 tracted posteriorly, and the antennae are equal throughout, or slightly 

 and insensibly thickened near the extremity. The mandibles are 

 never very strong. The exterior palpi are terminated by an oval or 

 fusiform joint, longer than the preceding one. The tooth of the 

 emargination of the mentum is always entire, and in some is want- 

 ing(2). The legs are robust, the tibiae spiny, and the hooks of the 

 tarsi simple. The intermediate tarsi, even in the females, are short, 

 and, with the exception of the dilatation, nearly formed like the 

 anterior. These Carabici prefer sandy and hot localities. 



This section is composed of the genus Hctrpalus, as limited by Bo- 

 nelli in his tabular view of the general distribution of the Carabici. 

 New sections have still more diminished its extent. They are all 

 subordinate to the three following divisions. 



The characters of the first are: the emargination of the mentum 

 unidentate(S); labrum emarginate; head and anterior extremity of 

 the thorax as wide as the abdomen or wider(4). It comprises three 

 subgenera. 



Acinopus, Zieg. Dej. 



Filiform antennae, composed of short but cylindrical joints; tho- 

 rax insensibly narrowed from before backwards, with the posterior 



(1) This appellation harmonizes with those of the two following sections, and 

 is founded on an exclusive character: it therefore seems to me to be preferable 

 to that of Harpalici, employed by Bonelli. 



(2) The ligula, as in the two following- sections, is always remarkably salient, 

 obtuse or truncated at the end, and accompanied by two distinct, membranous 

 paraglossae in the form of auricles. 



(3) If the Cyclosomi have the four anterior tarsi dilated, they will form a fourth 

 division on account of the two teeth in the emargination of the mentum. 



(4) The head large; paraglossrc rather broad in comparison with the true ligula, 

 and rounded at the end; second joint of the antennae somewhat shorter than the 

 third; intermediate tarsi of the males rather less dilated than the anterior. 



