CLASS V. INSECTA. 
177 
Obs. — Of this genus the following species may be considered as types 
°1 the undermentioned genera : 
Genus Ai.f.ociiara. Grav. 
Sp. 1. Aleo. fuscipes. 
Genus Drusilla. Leach. 
Sp. 1. Aleo. canaliculata. 
Genus Falaoria. Leach. 
Sp. 1. Aleo. sulcata. 
Genus Autalia. Leach. 
Sp. 1. Aleo. impressa. 2. Aleo. rivularis-. 
Cenus 116. LOMECIHUSA. Grav., Latr., Leach. 
Heud disengaged from the thorax behind, with an inconspicuous neck 
0r none : thorax transverse, the sides rounded : antenna distinctly 
Perfoliated. 
“P* 1- Lorn, emarginata. Brown-reddish rather opaque, minutely punc- 
tated: elytra pale, testaceous; hinder angles of the thorax and 
elytra terminating in spinous points. 
h°m. emarginata. Grav. 
n habits dry sand spots under stones. 
Obs. — G enus Dinarda. Leach. 
The type of this genus is Lomechusa dentata. Grav. 
Fam. XII. PsEi-AritiDX. Leach. 
■UtMr.RA. LatreHle. 
Elytra abbreviated : tarsi with three articulations : claws monodactyle. 
“ Latreille supposed that these animals had but two joints to their 
tarsi, and therefore placed them in a peculiar section of the Cole- 
°ptera; observing, however, that they arc allied to Aleochara, to 
" hose family they are even referred by lvirby.” 
. ttr. Leach considers them as constituting a distinct family, whose 
filiation is i ntermediate between the Staphylinulte. and Scydnuenidw, 
to both of which they are intimately allied ; but may be distinguished 
h'om either by the structure of their claws, and from the latter also 
oy their abbreviated elytra. 
the third volume of the Zoological Miscellany is given an ex- 
cellent monograph of the genera of tins family, in which are enu- 
merated nineteen British species, five of which are new, and none of 
them were known to Mr. Marsham, who has not described one spe- 
Cles *u his Entomologia Britannica. 
^riitps 
1. Antemue with eleven joints. Maxillary palpi elongated, 
i.—Body elongated and depressed. 
