COLEOPTERA. 379 



rior tibiae ; the first joint of the antennae elongated, forming a re- 

 versed cone, and the second shorter than the third; summit of the 

 ligula straight, without any projection ; thorax almost in the shape of 

 a cup, nearly as long as it is broad, and without posterior projections; 

 the labrum dentated. 



Some are apterous and have an oval abdomen *. The latter is 

 oval in others, and truncated at base ; these are furnished with wings. 

 A new species has been discovered in Sicily by M. Lefevre. All the 

 others, both of this and the preceding division, inhabit northern 

 Africa or the East Indies f . 



The third subgenus, in its moniliform antennae, the teeth on the 

 exterior side of the two first tibiae and in the ordinary proportions of 

 the mentum, evidently approximates to Scarites. 



Carenum, Bon. 



Straight maxillae without a terminal hook ; summit of the ligula 

 rounded ; ultimate joint of the exterior maxillary palpi enlarged and 

 double the length of the preceding one. 



The only species known — Scarites ci/aneus. Fab. — inhabits 

 New Holland. 



None of the other Carabici of this section exhibits labial palpi ter- 

 minated by a larger and securiform joint : the last is in the form of 

 a reversed and elongated cone, or almost cylindrical and smaller at 

 base; the same joint of the exterior maxillary palpi is also nearly 

 cylindrical ; all these palpi are about the same thickness throughout, 

 or sometimes attenuated at the extremity. 



A first very natural subdivision, which comprises the Scarites of 

 Fabricius, the cyaneus excepted, consists of bipartite Carabici, Avhose 

 anterior legs are palmated, or at least digitated at the end, that is to 

 say, terminated exteriorly by a long point in the form of a spine, 

 opposite to a very stout internal spur. Their antennae are granose ; 

 the second joint as long as the following one, and frequently longer. 

 The mandibles, those of a small number excepted, are stout, project- 

 ing, and angular, or dentated on the internal side. The labrum is 

 very short, transversal, and crustaceous. The ligula is most fre- 

 quently entirely corneous, bristled with hairs or cilia, broadly emar- 

 ginate or widened at the summit, and with projecting lateral angles. 



Some have very strong, projecting, and usually dentated mandi- 

 bles; the anterior margin of the crustaceous labrum very dentate, 

 the ligula short, not extending beyond the mentum, entirely horny 

 or crustaceous, bristled with hairs, and Avidened at the superior mar- 

 gin. Their anterior tibiae are always palmate. The species gene- 

 rally are large. 



One of these subgenera. 



» Siagona rufipes, Lat. Geaer. Crust, et Insect., I., vii, 9 ; Cucujus i-ufipes, Fab. ; 

 — Siagona fuscipes, Dej., Spec. I, p. 359. • ■r.i.\ 



t The Siag. atrata, depressa {Galerila depressa, Fab.), Pejus, (GalerUta flejus, Fab.) 

 Schupelii, Dej., lb. ;— Scarites, lavigatus, Heibst. Col. CLXXV, 6. 



