THE HETEROHERA. 
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and sometimes not visible from above, though the 
eyes are never encroached upon by the thorax ; and 
the clypeus is never distinctly separated by a suture 
from the rest of the head. 
They are somewhat elongate, narrow, usually hard, 
not clothed with much pubescence, and more or less 
convex. 
In Orchesia (0. undulata, Plate X., Fig. 4 ; found 
in white-thorn flowers in the New Foi’est) the antennas 
are rather thickened at the apex, the spurs to the 
tibiae are very long ; the anterior coxae are not ap- 
proximated; and the penultimate joint of the hind tarsi 
is very long and entire, — the two latter characters 
being also shared by Hallomenus. The species of both 
of these genera are bred from the fungoid matter 
growing on old wood, and from boleti, in which their 
smooth fleshy larvas are found. Orchesia, wherein the 
hinder coxae are large, flat, square, and transverse, and 
the spurs to the hinder tibiae very long and pectinated 
beneath, possesses the power of skipping about in a 
ludicrous manner. 
With the exception of Helandrya caraboides, — a 
species very variable in size (as in most wood-feeders), 
flat, hard, blue-black, shining, with the elytra rather 
widened behind, — none of this family can be consi- 
dered common, though many of them occur in some 
numbers when they are met with. M. caraboides lives 
in its earlier stages in old willow stumps; and the 
perfect insect may be seen with its head projecting 
from the mouth of the burrow made by the larva, into 
which it rapidly backs on an attempt being made to 
capture it. It flies readily, and with a metallic sound, 
in the hot sunshine ; alighting on felled trees, and 
