224 
BRITISH BEETLES. 
than the commoner Ileledona agaricola, a convex, 
oval, dull dirty brown insect, in which the eyes are of 
the normal structure, and the thorax is not roughened 
at the sides. As in many fungus- and wood-feeders, 
individuals of both these species sometimes occur in 
which the colour is much lighter than usual. 
The Diaperina present a considerable resemblance 
to certain of the Chrysomelidse, from which their five- 
jointed front and middle tarsi will at once distinguish 
them. They are metallic, smooth, and more or less 
bright in colour, with their eyes not entire and their 
antenme gradually widened to the apex. In Diaperis 
the basal joint of the hind tarsi is short, whilst in the 
other genera it is much elongated. 1). boleti, a very 
convex, shining, black species, with the apex of the 
elytra and the two transverse bands yellow, is one of 
our rarest species, no instance of its capture having 
been recorded for many years. Its larva is blind, 
and feeds on boleti growing on the trunks of trees, 
enclosing itself in a cell with a silky lining before 
undergoing its final metamorphoses. 
Scaphidema, smaller, more depressed, and brassy, 
has its intercoxal projection wide, quadrangular, and 
truncated in front. It occurs not uncommonly near 
London among dead leaves, and at the bottoms of 
hedges. Its larva, as in the genus next mentioned, 
has two minute spines at the apex of the abdomen, 
and lives in Boleti under bark, making no cell to 
change in. It has three ocelli on each side of its 
head. Platydema, the larva of which has four ocelli 
on each side, is exceedingly like a Chrysomela, and is 
found in the New Forest, but rarely. 
The Tenebrionma here are represented by one genus, 
