Australian insectsFroggatt, Walter W. (Walter Wilson)
Science
Australian insects
Froggatt, Walter W. (Walter Wilson)
Insects -- Australia
These perfect termites have well developed eyes; slender antennae
composed of short, rounded, bead-like joints standing out in front of
the rounded flattened head; and a short stout thorax fitting close
against the elongate rounded abdomen. They are furnished with two pairs
of similar, elongated, narrow wings of uniform width rounded at the
tips, with primitive parallel neuration; these are loosely attached to
the basal wing-flap by a cross suture, where they readily tear them
across; when at rest they are laid flat over each other down the back,
extending well beyond the tip of the body: the legs are short and stout.
Their flight is feeble, and of the millions that swarm out and flutter
away from the nest, probably not more than halfa-dozen couples are
fortunate enough to get into a suitable place to found a fresh colony.
[Illustration: =Fig. 8.=--Diagram of head of
worker termite. Dorsal view, showing the jaws and mouth
parts. _Coptotermes (Termes) lacteus_ (Froggatt).
(“Agricultural Gazette,” N.S.W.)]
[Illustration: =Fig. 9.=--_Coptotermes (Termes)
lacteus_ (Froggatt). Fully developed female or Queen.
(“Agricultural Gazette,” N.S.W.)]
[Illustration: Plate II.--ORTHOPTERA.
Family _Termitidae_.
_Coptotermes (Termes) lacteus_ (Froggatt).
1. Male (wings closed).
2. Male (wings expanded).
3. Worker.
4. Nymph.
5. Soldier.]
[Illustration: _Plate II.--ORTHOPTERA._]
The next caste, that form the bulk of the life of the nest, are the
workers, delicate soft white creatures with pale yellow, rounded,
flattened heads; blind, but furnished with slender antennae; and a pair
of short stout toothed jaws hidden by the labrum, and which in the
course of their labours do such immense damage to all kinds of both
native and imported timber. The third caste, also always present, are
the soldiers, that simply act as guards for the whole nest, leaving
all the work of building, feeding the young, and gathering supplies to
the workers. In the fourth we have the Queen, which was originally one
of the winged forms; after casting her wings she is impregnated, and
while the head, thorax and appendages remain as before, the abdomen
swells into a white cylindrical sack as thick as one’s little finger;
the chitinous plates that once fitted close together are now widely
separated and appear as narrow black bands. She is simply a mass
of egg tubes; and, looked after and fed by the attendant workers, she
devotes her life to laying eggs, which, like grains of sugar, are
carried away and piled up by the workers in adjacent chambers under
the nursery. From these eggs develop tiny white specks of matter that
gradually develop by a regular series of moults into workers, soldiers,
and immature winged forms; the latter have large rounded bodies and
rounded wing pads representing the future wings. Supplementary Queens
are sometimes found that have never gone through the winged stage; they
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