208 CLASS INSECTA. 



M. Bonelli has confined it, in the table which presents the 

 general distribution of the Carabici. The extent of that has 

 been since diminished by new sections. They are subordi- 

 nate to the three following subdivisions. 



The first will have for characters, the emargination of the 

 chin unindentated, the labrum emarginated, the head and the 

 anterior extremity of the corslet as wide or wider than the 

 abdomen. 



N.B. If the Cyclosomi have the four anterior tarsi dilated, 

 they will form a fourth division, in consequence of the two 

 teeth in the emargination of the chin. 



The first comprehends three sub-genera. 



AciNOPus, Zieg. Dej. 



With filiform antennae, composed of short articulations, but 

 cylindrical, and with the corslet narrowed insensibly from 

 front to back, with the posterior angles very obtuse 

 and rounded. The labrum is strongly emarginated. The 

 mandibles have no teeth ; that of the middle of the emargi- 

 nation of the chin is broadly truncated.* 



Daptus, Fisch., Acmopiis, Dej. 



With antennae commencing with the fifth articulation, mani- 

 liform ; with the corslet abruptly narrowed towards its 

 posterior angles, which terminate in a point. One of the 

 mandibles is advanced, and very much pointed. The four 

 anterior legs, especially those of the males, are well furnished 

 with small spines.f 



* Harpalus megacephalus, Lat. Gen. Crust, et Insect. I. p. 206 ; Carabus 

 megace2)halus. Fab. Ross. Faun. Etrusc. Append, tab. III. ib.; AciiiQims 

 viegacephaliis, Dej Catal. 



\ Acinopus maculipenniSf Dej. ; Daptus pictus, Fisch. Entom. de la 

 Russ. II. xxvi. 2, xlvi. 2 ; D. vittatus, ejusd. ibid. 7, var. ? Ditovia vittiger. 

 Germ. ; D. chloroticus, ejusd, ibid. 



