ORDER SUCTORIA. 155 



which comprehend the trunk, which is short, and the others 

 the abdomen. The head is small, very much compressed, 

 rounded above, truncated, and ciliated in front. It has, on 

 each side, a small and rounded eye, behind which is a fosset, 

 in which a small mobile body is discovered, furnished with 

 small spines. At the anterior edge, near the origin of the 

 bill, the pieces are inverted, which are taken for antcnnse, 

 which are scarcely of the length of the head, and composed 

 of four articulations almost cylindrical. The sheath or bill 

 is divided into three articulations. The abdomen is very 

 large, and each of its rings is divided into two, or formed of 

 two laminae, one superior and the other inferior. The feet 

 are strong, particularly the hinder, proper for leaping, spiny, 

 with large haunches and thighs, and the tarsi composed of 

 five articulations, the last of which is terminated by two 

 elongated crotchets. The two anterior feet are almost in- 

 serted under the head, and the bill is placed between 

 them. 



The male, in copulation, is placed under the female, so 

 that their heads face each other. The female lays a dozen of 

 eggs, white, and a little viscous. From them come forth 

 little larvae Avithout feet, very much elongated, like little 

 worms, exceedingly lively, rolling themselves in a circle or 

 spiral, and serpentine in their gait. They are at first white, 

 and afterwards reddish. Their body is composed of a scaly 

 head, without eyes, having two very small antennae, and of 

 thirteen segments, having little tufts of hairs, with two sorts 

 of crotchets at the end of the last. Their mouth presents 

 some small moveable pieces, of which these larvae make use 

 in pushing themselves forward. After having remained a 

 dozen days under this form, the larvae enclose themselves in 

 a small silken shell, where they become nymphs, and from 

 which they issue in the perfect state, at the end of a space of 

 the same duration. 



