Directions for Collecting and Preserving InsectsRiley, Charles V. (Charles Valentine)
Science
Directions for Collecting and Preserving Insects
Riley, Charles V. (Charles Valentine)
Insects -- Collection and preservation
_The Umbrella._--The umbrella, as already stated, is one of the most
useful instruments of the collector, since it enables him to obtain all
those numerous insects which live on the branches of trees, on shrubs,
and on other large plants. A common stout cotton umbrella is
sufficiently large, but is liable to get out of joint, and moreover the
specimens hide themselves under the ribs. It is well, therefore, to have
the inside of such umbrella lined along the ribs with muslin, or some
other material, preferably of a light color. An umbrella specially
constructed for entomological purposes is offered for sale by E.
Deyrolle, in Paris. It resembles a stoutly built common umbrella, but
has the inside lined with white linen and the handle has a joint near
the middle, so that the umbrella can be more conveniently held and more
readily packed away. The opened and inverted umbrella is held with the
left hand under the branch which the collector intends to relieve of its
entomological inhabitants, while the right hand, armed with a heavy
stick, is free to properly jar the branch. Care must be taken in the
jarring, lest the insects are knocked beyond the circumference of the
umbrella. The larger the umbrella the greater are the chances of making
rich captures, but the more difficult it becomes to manipulate,
especially where the woods are dense or where there are many vines, etc.
In the absence of an umbrella the butterfly net or the beating net can
be used.
A drawback to collecting with the umbrella is that many insects take
wing and escape before being secured. This can hardly be avoided, and
experienced collectors, in southern countries more particularly, have
found it advisable to discard the umbrella and to use in its stead a
very large butterfly net, 2 feet or more in diameter.
[Illustration: FIG. 52.--The Umbrella and its mode of use. (After
Kiesenwetter.)]
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