COLEOPTERA. il 
into a kind of funnel and fitting concentrically into each other, and 
by their mandibles, the inner side of which is entirely serriform, and 
which present underneath, particularly in the males, a projection or 
horn. In these individuals the thorax is deeply emarginated before, 
and its angles project considerably forwards. The abdomen is very 
short, almost semicircular, and the last legs near its extremity. The 
labial palpi are a little longer than the others; their second joint is 
elongated, and the two others are almost equal in length. The inner 
side of the maxille is furnished with hairs and cilia, in the form of 
little spines, and their terminal lobe is narrow and elongated. The 
mentum is triangular, and transversely truncated at its extremity. 
Such are those which form the 
Leturus, Scop. Fab. 
The species, but few in number, are peculiar to Hungary and the 
eastern part of Russia. 
L. cephalotes, Fab; Fisch., Entomog. Russ. Imp., I, p. 133, 
XII1, 1. This Insect, distinguished from the other species by its 
entirely black colour, and smooth thorax and elytra, according 
to professor Gothelf Fischer, is extremely noxious in culti- 
vated grounds, as it attacks the scarcely visible buds and leaves 
of plants, and cuts them off with the trenchant forceps of its 
mandibles, a habit whichin Hungary, where it does great injury 
to the vines, has caused it to be styled the Schneider, or Cutter. 
As the pectus projects greatly underneath the abdomen, and the 
hind legs seem to be inserted very near the anus, it is a good 
climber, and in descending moves backwards. After having 
amputated the heart of a plant, it descends with its prey, which 
it transports toits hole. Each of these holes, which are made in 
the earth, is occupied by a pair, but in the nuptial season a 
strange male frequently claims admittance. A furious combat 
is the consequence, during which the female closes the entrance 
of the domicil, and keeps continually pushing her companion for- 
wards. The battle only ceases with the death or flight of the in- 
truder. The same savant describes—Ibid., p. 136, 140—three 
other species hitherto unknown. 
In all the other Arenicoli the antennal club is composed of the ordi- 
narily shaped leaflets, laid one on another, or like the leaves of a book. 
They form our subgenus GrotrupsEs, or the Scarabeus, Fab., from 
which the following subgenera have since been detached. 
Those, in which the antennal club is oval or ovoid, and of which 
the edges of the leaflets are totally or partially exposed even when 
contracted, form two of them. In 
GrotrupEs, Lat. 
Or Geotrupes properly so called, the labrum is a transverse square, 
entire or simply dentated; the mandibles are arcuated, highly com- 
pressed, dentated at the extremity, and frequently sinuous on the ex- 
terior side, and the maxillee furnished with a very pick, fringe of 
c 
