363 INSECTA. 



than the others, and six ocelli on each side. The first annulus is 

 covered by a squamous plate; the others are soft, or have but little 

 firmness. Each of the three first bears a pair of legs, the extremity 

 of which curves forwards. 



These larvae differ according to the genus. In those of the Ci-- 

 cindelae and of the Aristus bucephalus, the top of the head is very 

 concave in the middle, whilst its inferior portion is convex. They 

 have two ocelli, on each side, much larger, and similar to those of 

 the Lycosae. The superior plate of the first segment is large, and 

 forms a semicircular shield. There are two hooked mammillas on 

 the back of the eighth annulus; the last has no remarkable ap- 

 pendage. 



In the other larv^ of this family which are known to us, those of 

 Omophron excepted, the head is weaker and more equal. The 

 ocelli are very small and similar. The squamous piece of the first 

 ring is square, and does not project from the body. There are no 

 mammillae on the eighth; and the last is terminated by two conical 

 appendages, exclusive of a membranous tube formed by the prolon- 

 gation of the end of the body. These appendages, in the larvae of 

 Calosoma and Carabus, are horny and dentated. In those of Har- 

 palus and Licinus, they are fleshy, articulated and longer. The body 

 of the larva of a Harpalus is somewhat shorter, and the head a little 

 larger. The mandibles of both approach the form of those of the 

 perfect Insect. 



Some are aquatic, others terrestrial. 



The latter have legs exclusively adapted for running, the four 

 posterior of which are inserted at equal distances; mandibles com- 

 pletely exposed; the terminal piece of the maxillae straight inferiorly, 

 and only curved at its extremity; and most frequently an oblong 

 body with projecting eyes. All their tracheae are tubular or 

 elastic. 



They are divided into two tribes. The first or the Cicindelet^, 

 Lat., comprises the genus 



CiciNDELA, Lin., 

 In which the extremity of the maxillae is provided with a httle nail articu- 

 lated with it by its base. 



The head is large, with great eyes, and very projecting and dentated 

 mandibles; the very short ligula is concealed behind the mentum. The la- 



