LAMELLICORNIA. : 
I, Lobes of maxille connate. (Pleurosticti.) 
i. Mandibles obtusely dentate at apex, and furnished with 
transverse striz on their posterior surface. 
1. Ninth segment of abdomen divided in middle by a 
furrow, which makes the segment appear as if divided 
peaaie tW.On gs es Fu) ase hk eC DNAS TED mss) 
. Ninth abdominal segment simple 5 koe is . CETONIDES. 
eee nits furnished with a smooth tooth at apex, pos- 
CigHor surface not furrowed ; ninth abdominal segment as 
in the Dynastides. . Pe eee ee ne eo MT OnOND MED ES: 
II, Lobes of maxilla separ ate. (Laparosticti.) 
The Laparosticti are further divided as follows by Chapuis and Can- 
déze, following M. De Haan and others :— 
i. Segments divided into transverse folds. 
1. Antennz composed of four or five joints. 
A. Mandibles furnished with numerous teeth . . . GEOTRUPIDES. 
B. Mandibles bidentate or tridentate. 
a. Mandibles distinctly tridentate. . . . . . . COPRIDES. 
b. Mandibles obtusely tridentate . . . . . . . APHODIIDES. 
2. Antennz composed of three joints . . . . . . . TROGIDES. 
ii. Segments simple, without transverse folds. 
1. Antenne composed of three joints; posterior legs 
very small . . : (PASSALIDES.) 
2. Antenne composed of four joints ; legs strongly de- 
WOOO 6.46 io ode Mele Moo ef aby pear . . LUCANIDES. 
The Lamellicorns are very poorly re aonted in Britain, although 
some of the species, such as the Stag-beetle, the Rose-beetle, and the 
Cockchafer, are among our largest and most familiar species, as also are 
the large species of Geotrupes, better known as the Dor- or Shardborne- 
beetle. 
The two great families of the series may be divided as follows:— 
I. Club of antenne subpectinate with the lamelle not capable of 
being placed closely together. . . . : ; . . LUCANID. 
IJ. Club of antennz with the lamellz capable of being placed close 
together and forming a compact club. . . . . . . . . « SCARABIDS. 
LUCANIDA. 
This family, which corresponds to the group Priocera of Dumeril, 
may be divided into two great divisions, the Lucanini and the Passalini, 
which are chiefly distinguished by the shape of the mentum and ligula ; 
as, however, none of the Passalini are represented in the European 
fauna, we need not here consider them; the family Lucanide, in its 
widest sense, according to the Munich catalogue, contains seventy-two 
genera and five hundred and twenty-nine species; the genera, however, 
of the Passalini, which in this catalogue number only twenty-seven, 
have been since raised to sixty, and considerable additions have also been 
made to the Lucanini. 
The Lucanide are chiefly found in tropical countries ; only six genera 
containing fourteen species oecur in Europe, of which three genera, each 
B 2 
