Butterflies and Moths (British)Furneaux, William S.
Science
Butterflies and Moths (British)
Furneaux, William S.
Butterflies -- Great Britain; Moths -- Great Britain
As further aids to larvae searching we may mention that many
species--chiefly of the _Noctuae_--hide under the surface of the ground
or among dense and low herbage during the day, and come out to feed only
by night; that many others feed on roots, and are therefore seldom seen
above the surface of the soil; also that a good number burrow into
fruits, in the interior of which they spend the whole of their larval
stage. The best way to secure the latter is to examine the 'windfalls'
that lie scattered on orchard lands, for it is a well-known fact that
the fruits that are infested with larvae generally fall earlier than
others--a result that must be attributed to the damaging work of the
larvae themselves.
All the larvae collected should be carefully boxed at once, a separate
compartment being used for each species, and a few fragments of the food
plant being introduced in each case. It is also a good plan to have each
box previously lined with moss as a further addition to the comfort of
the captives. Without such a precaution some of the more delicate
species are liable to injury during their transmission from field to
home.
Hitherto we have obtained our larvae by _searching_ only, but there are
times and occasions when our boxes may be far more rapidly filled by
methods that are not such a tax on our time and patience. Suppose, for
instance, that we reach a bush, the mutilated leaves of which seem to
show that larvae are present on its branches. We spread our white cloth
or open out the white-lined umbrella just under a selected branch, and
then tap that branch very smartly with our stick.
Down comes a host of living creatures! Spiders, larvae, beetles, aphides,
earwigs, and what not, struggling and running about on our white fabric
in all directions, and all mingled with bits of stick, leaves, and
fragments of all kinds. We leave the cloth or the umbrella, as the case
may be, quite still for a few seconds to allow all the living creatures
to get a good foothold, and then, raising it into a vertical position,
allow all the rubbish to drop off.
We can now put the cloth down again, and select as many of the larvae as
we require, giving our first attention to the nimble runners and loopers
that are already near the edge and just on the point of making their
escape. This productive method of larva hunting is known as 'beating,'
and is particularly applicable to tall herbs and the lower branches of
trees and shrubs.
The same principle may be employed in the case of branches that are
quite out of the reach of the stick, but the blows are here applied to
the trunk, a mallet or some other rather heavy implement taking the
place of the stick.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account