422 INSECTA. 



curiform, and Ibe penultimate joint of the tarsi is profoundly 

 bilobate. ' 



In the other Trimera of the same family, the joints of the tarsi 

 are simple, and the penultimate at least is slightly bifid, which, with 

 some other characters, distinguishes these Insects from the Fun- 

 gicolse. 



COCCINELLA. 



In Coccinella proper, the body is almost hemispherical, the thorax very 

 short, almost lunate, the margin not recurved or but very slightly, and the 

 penultimate joint of the tarsi profoundly bilobate. 



Various species of this genus are extremely common on the trees and 

 plants of our gardens, and frequently in our houses; they are known by the 

 names of Cow-bug, Lady-bug, &c. They feed on Aphides, their larva, 

 which in form and their metamorphoses greatly resemble those of the Chry- 

 somelje, employing the same aliment. 



There, the body is much flattened, in the form of a shield, and the head 

 is concealed under an almost semicu-cular thorax. The antennae present 

 distinctly but nine joints, and terminate in an elongated club. The joints 

 of the tarsi are entire. The praesternum forms a sort of chin-cloth ante- 

 riorly. Such are the characters of the genus 



CLYrEASTEE, Audersch. 

 They are found under the bark of trees, and under stones. 



FAMILY III. 

 PSELAPHII. 



These Insects, which constitute our third and last family of the 

 Trimera, in their short and truncated elytra that only cover part of 

 the abdomen, bear a certain resemblance to the Bachelytra, and 

 particularly to the Aleocharas. This last part of their body, how- 

 ever, is much shorter, wide, very obtuse and rounded posteriorly. 

 The antennae, terminated by a club or thicker towards the extre- 

 mity, sometimes consist of but six joints. The maxillary palpi are 

 usually very large, and all the joints of the tarsi are entire; the first, 

 much shorter than the following ones, is scarcely visible at the first 

 glance, and the last is most commonly terminated by a simple hook. 



Thej are found on the ground under the debris of vegetable mat- 

 ters: some inhabit certain ant-hills. 



Those which have eleven joints in the antennas form the genua 



