COCKCHAFER. 39 
beetles in a time of drought of a syringing with soapy water, so that 
the bush was so covered with beetles that it became a veritable trap 
to them, and presently many were found dead beneath the bush, 
although no beetles were found dead elsewhere. All these points 
appear to me to be useful in themselves; and in some instances, 
especially as to the application of soap and water, to be treatment 
which might be amplified at a paying rate for use on infested grass- 
land at beetle time, as well as in gardens. 
The Rose Chafer may be recognised at a glance by its likeness to 
the figure at p. 85, as a small beetle, rather flat in shape, about half 
an inch long; with the head and fore body bright green; and the 
wing-cases bright brown or tawny. 
The larve are small fleshy grubs, which lie on their sides in repose 
very similarly to those of the Cockchafer; but when disturbed, can 
straighten themselves, and creep along (as I have found by timing 
rate of progress by the second-hand of my watch) at from five to six 
inches in about half a minute. They are somewhat yellowish in 
colour, with chestnut or ochrey heads and jaws, the latter darker at 
the tips; and are furnished with three pairs of legs on the fore part of 
the body. They turn to chrysalids in the ground, from which the 
beetles come up early in the summer. The whole life from egg to 
beetle state does not extend, so far as I can find (reliably) recorded, 
beyond the period of one year. 
This infestation does great harm in maggot state below ground,— 
most especially by feeding at grass-roots in meadow- and park-land ; 
and in beetle state by feeding on leafage, and likewise being especially 
partial to Rose-blossoms, whence it is known as the ‘“‘ Rose Chafer.”’ 
The Cockchafer,—which is only incidentally mentioned above, 
because in a few observations where the grubs were mentioned as of 
Larva, or grub, and pupa of Common Cockchafer. 
various sizes, or as resembling young Cockchafers, and I had not 
specimens sent for examination, both species may have been present,— 
is too well known to require description. Its great grubs live for about 
four years in the ground, feeding on roots of grass, field crops, &c. ; 
and even sometimes doing great mischief to roots of young seedling 
Firs, by gnawing the bark from the main root. 
The above figure shows the shape and size, when full-grown, of 
