Essays on the Microscope: Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.Adams, George
Science
Essays on the Microscope: Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.
Adams, George
Insects -- Early works to 1800; Microscopy -- Early works to 1800
The second order, or soldiers, have a very different appearance from the
labourers, and have been by some authors supposed to be the males, and
the former neuters; but they are, in fact, the same insects as the
foregoing, only they have undergone a change of form, and approached one
degree nearer to the perfect state. They are much larger, being half an
inch long, and equal in size to fifteen of the labourers. There is now,
likewise, a most remarkable circumstance in the form of the head and
mouth; for in the former state the mouth is evidently calculated for
gnawing and holding bodies; but in this state, the jaws being shaped
like two very sharp awls a little jagged, they are incapable of any
thing but piercing or wounding, for which purposes they are well
calculated, being as hard as a crab’s claw and placed in a strong horny
head larger than all the rest of the body together.
The insect in its perfect state is varied still more in its form; the
head, thorax, and abdomen, differ almost entirely from the same parts in
the labourers and soldiers; and, besides this, the animal is now
furnished with four fine large brownish transparent wings, with which it
is, at the time of emigration, to wing its way in search of a new
settlement; in short, it differs so much from its form and appearance in
the two other states, that it has never been supposed to be the same
animal, but by those who have seen it in the same nest; and some of
these have distrusted the evidence of their senses. It was so long
before Mr. Smeathman met with them in the nests, that he doubted the
information which was given him by the natives, that they belonged to
the same family: indeed, twenty nests may be opened without finding one
winged one; for those are to be found only just before the commencement
of the rainy season, when they undergo the last change, which is
preparative to their colonization. Add to this, they sometimes abandon
an outward part of their building, the community being diminished by
some accident that is unknown; sometimes different species of the real
ant, formica, possess themselves by force of a lodgment, and so are
frequently dislodged from the same nest, and taken for the same kind of
insects. This is often the case with the nests of the smaller species,
which are frequently totally abandoned by the termites, and completely
inhabited by different species of ants, cockroaches, scolopendræ,
scorpions, and other vermin fond of obscure retreats, that occupy
different parts of their roomy buildings.
Public-domain text, read in full here on John Shaqi.
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