378 INSECTA. 



posterior tarsi, almost filiform ; the penultimate joint of all bifid, but 

 ot bilobate. AH the species quoted by Count Dejean are foreign to 

 Europe, and belong, generally, to America*. 



2. The second section, that of the Bipartiti, — Scarttides, Dej. — 

 which in relation to their habits might also be be styled Fossores, is 

 composed of Carabici with elytra either entire or slightly sinuated 

 at their posterior extremity ; having frequently granose and geni- 

 culate antennae ; a broad head, large thorax, usually shaped like a cup 

 or almost semi-orbicular, and separated from the abdomen by an 

 interval which causes the latter to appear pediculated ; the legs gene- 

 rally but slightly elongated, their tarsi usually short, and similar in 

 the two sexes, or nearly so, without any brush beneath, and simply 

 furnished with ordinary hairs or cilia. The two anterior tibiae are 

 dentated, and in several palmatcd or digitated ; the mandibles fre- 

 quently strong and dentated. There is a tooth in the emargination 

 of the mentum. They all keep on the ground, conceal themselves 

 either in holes which they excavate, or under stones, and frequently 

 only leave their retreat at night. They are usually of a uniform 

 black. The larvae of the Ditomus bucephalus, the only one that has 

 been observed, has the form and mode of life of the larvae of the 

 Cicindelae. They are more particularly proper to hot countries. 



The three first subgenera, on account of their labial palpi, which 

 are terminated by a larger, securiform or triangular joint, form a 

 particular group; the last of these subgenera leads us to Scarites, 

 whilst the first, which, as respects the absence of the emargination in 

 the internal side of the two anterior tibiae, constitutes an exception, 

 seems to connect itself with the first subgenera of the family, They 

 all have stout and dentated mandiiiles. The external maxillary palpi 

 terminate in a rather larger joint ; the thorax has the form of a cup 

 or truncated heart ; the abdomen is pediculated. 



Two of the subgenera of this group form a special subdivision. 

 Their anterior tibiae are not palmated. Their antennae consist of 

 cylindrical joints, or such as resemble reversed cones. The mentum 

 covers the whole under part of the head as far as the labriim, and fre- 

 quently exhibits no transverse suture at its base. The body is much 

 flattened, and is ajjterous in several. They all belong to the eastern 

 continent or to New Holland. 



Enceladus, Bon. 



The inner side of the anterior legs unemarginate ; first joint of the 

 antennae but little elongated, and almost cylindrical, the third shorter 

 than the second ; middle of the superior margin of the ligula pro- 

 jecting in the manner of an angle or tooth ; thorax almost in the 

 form of a broadly truncated heart, the posterior angles slightly dilated 

 and pointed ; labrum emarginate or nearly bilobate. 



Encel. gigas, Bon., Mem. of the Acad, of Sc. of Tur. The 

 only species described. From the coast of Angola. 



SiAGONA, Lat. — Cucujus, Galerita, Fab. 

 A very decided emargination on the internal side of the two ante- 



'S^{a) In the United States : C. signata, and C. arata, Dej. — Eng. Ed. 



