Butterflies and Moths (British)Furneaux, William S.
Science
Butterflies and Moths (British)
Furneaux, William S.
Butterflies -- Great Britain; Moths -- Great Britain
As a rule the _Noctuae_ thus engaged are easily pill-boxed or caught
direct in the cyanide bottle; but a few of the more restless species are
to be made sure of only by a sweep of the net. Some will feign death as
soon as disturbed, and allow themselves to drop among the foliage, where
further search is generally fruitless.
Another common difficulty arises from the inconvenient height of many of
the attractive blossoms--often so great that it is impossible to reach
them with the net, and very difficult to direct the rays of your lantern
on them. This is particularly the case with sallow and ivy, the flowers
of which are two rich sources of supply to the entomologist.
[Illustration: FIG. 52.]
[Illustration: FIG. 53.--NET AND LANTERN FOR TAKING MOTHS FROM HIGH
BLOSSOMS.]
Those who intend giving special attention to these blossoms should be
provided with some form of apparatus that will enable them to extend
their operations as high as possible. Perhaps the most effective
arrangement is the well-known combination here figured. It consists of a
long and stout stick, at the top of which is a tubular joint (fig. 52)
that might be termed a T-piece were it not that the smaller part does
not stand out at right angles to the other. In this is fixed, in a
straight line with the stick, a short rod on which hangs a lantern--an
ordinary bull's-eye answers well here; and in the smaller tube is
another short rod carrying a shallow basin-shaped net, and of such a
length that the net is just in advance of the lantern.
At first sight this arrangement will strike you as being very
unsatisfactory, there being no kind of trap to prevent the escape of the
insects. But it must be remembered that moths are more or less addicted
to habits of intemperance--that they will hold on to the supply of the
sweet fluid they enjoy till they are ready to drop with intoxication.
This being the case, some will fall into your net as soon as they are
startled by the sudden and near approach of the glare of your lamp, and
others are easily _made_ to fall therein by gently tapping the
flower-bearing stems from below with the edge of the ring.
Having become acquainted with this very sad propensity, which thus
brings ruin to so many unfortunate moths, can we not yet further turn
their evil doings to our own profit in our endeavours to become
acquainted with their structure and history? Most certainly we can. All
we have to do is to distribute in their haunts a bountiful supply of
some artificial intoxicant such as they love, and then lie in wait for
the victims that fall a prey to our snare. This process is known to
entomologists as 'sugaring,' and is a splendid means of securing an
abundance of species, often including some rare ones that are scarcely
to be obtained by any other plan. Let us now inquire into the _modus
operandi_ of this interesting operation.
Public-domain text, read in full here on John Shaqi.
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