COLEOPTERA. 
555 
ilJary palpi are filiform, and the two terminal joints of the labial palpi form, when united, a triangular mass. They 
inhabit India and America. 
Dapsa, Zeigl., has the antennal club narrow, elongated, with the joints apart at the side. [Exotic species.] 
The others have the third joint of the antennae scarcely longer than the adjoining joints. Many of the species 
are indigenous [to France and England], and live in Lycoperdons, or beneath the baric of trees. 
Endomychus, Weber, has the four palpi thicker at the tips ; the last three joints of the antennae apart at the 
sides, longer than the preceding, and forming a reversed triangular mass. [E. coccineus, a pretty little English 
species.] 
Lycoperdina, Latr., has the maxillary palpi filiform ; the last joint of the labial larger than the preceding, and 
the two last joints of the antennae forming a reversed triangular club. L. Bovistce, [a small British species, found 
in pulF-balls]. 
THE SECOND FAMILY OF THE COLEOPTERA TRIMERA,— 
The Aphidiphagi, — 
Is composed for the most part of insects of a hemispherical form ; the thorax very short, transverse, 
almost crescent-shaped ; the antennae terminated by a compressed mass in the form of a reversed cone, 
composed of the three terminal joints, and shorter than the thorax ; the last joint of the maxillary palpi 
is very large, hatchet-shaped ; and the second joint of the tarsi deeply bilobed. In the other Trimera, 
of the same family, the joints of the tarsi are simple, or the second is but slightly bifid, a character 
which, with some others, distinguishes these insects from the Fungicolae. 
Some have the body more or less thick, and never flattened and shield-shaped ; the thorax transverse ; the head 
exposed ; the antennae distinctly 11-jointed; the terminal joints forming a reversed conical club. 
These insects compose the genus 
CoCCINELLA. 
Lithophilus, Frohl., has the body ovoid, with the thorax strongly margined at the sides and narrowed behind, 
with the second joint of the tarsi very slightly bifid. L. ruficollis, Dahl, [a minute European species]. 
Cocdnella proper, has the body nearly hemispherical ; the thorax very short, nearly crescent-shaped, scarcely 
margined ; and the second joint of the tarsi deeply bilobed. 
Many species of this genus are widely dispersed upon trees and plants in our gardens, and enter our houses ; they 
are well known under the name of Lady-birds, or Lady-cows. The generally hemispherical form of their bodies, 
the number and arrangement of the spots on their elytra, which resemble a kind of inlaid work of black upon 
yellow or orange, or vice versa, as well as the agility of their motions, cause them to be easily loiown. They 
are the first to appear in the spring ; when seized, they fold up their legs against the body, and emit a mucilaginous 
humour from the joints of the legs, as in the Chrysomelae, and which is of a yellow colour and very disagreeable 
scent. They feed upon plant-lice, as well as their larvae, of which the form and metamorphoses closely resemble 
those of the Chrysomelinae. Occasionally, individuals, differing greatly from each other, are found coupled to- 
gether, but the results of such unions have not been observed. 
Cocdnella 1-punctata, the common Lady-cow, is about three lines long ; black, with the elytra red, 
with three black dots on each, and one in the middle. It is the commonest species in this country, 
as well as in France. 
Clypeaster, Andersche, {Cossy pirns, Gyll.), has the body very ffat and shield-shaped, with the 
head hidden beneath a nearly semicircular thorax ; the antennae do not distinctly possess more 
than nine joints ; the joints of the tarsi are entire, and the prosternum forms a kind of cravat 
beneath the mouth. [The species are of very minute size], and are found beneath the bark of 
trees, and under stones. 
Fig. 86. — Cocci 
nella 7 * pun 
ctata. 
THE THIRD FAMILY OF THE COLEOPTERA TRIMERA,- 
I The Pselaphi, — 
Has the elytra short and truncated, covering only a part of the abdomen, thus possessing a certain re- 
semblance to the Brachelytra, and especially to the Aleocharae ; this last part of the body is, however, 
much shorter, broad, very obtuse, and rounded behind ; the antennse, terminated in a club, or thickened 
j to the tips, sometimes formed of only six joints ; the maxillary palpi are ordinarily very large ; all the 
joints of the tarsi are entire, and the first is much shorter than the following, and scarcely visible at 
first sight ; the last is often terminated by a single unguis. 
These insects are found on the ground, under the debris of vegetables, and some inhabit ants’ nests. 
[By English entomologists, this extremely interesting family, placed by Latreille at the end of the 
order Coleoptera (on account of the structure of the tarsi exhibiting a greater simplieity than that of 
any other Beetles), is arranged in immediate connexion with the Staphylinidae. The monographs of 
Reichenbach, Denny, and Leach, and the more recent works of Aube, Stephens, and Erichson, have 
