An Account of the Insects Noxious to Agriculture and Plants in New Zealand: The Scale Insects (Coccididae)Maskell, William Miles
Science
An Account of the Insects Noxious to Agriculture and Plants in New Zealand: The Scale Insects (Coccididae)
Maskell, William Miles
Insects -- New Zealand; Scale insects
Young larva, about 1/24in. long, dark-red, elongated, flattish, active;
covered with yellow cottony down. Antennæ of six joints, hairy; the
last joint is much the largest, clavate, apparently four-ringed,
bearing four long hairs. Feet slender; digitules short, fine hairs.
Eyes prominent, tubercular. Mentum biarticulate. Anal tubercles
represented by three small processes at each side of the abdominal
extremity, each process bearing a very long seta. Six longitudinal
rows of circular multilocular spinnerets, four on the dorsum and one
on each edge. Alternating with these are rows of hairs with tubercular
bases.
Adult male large, the length slightly varying; some specimens reach
1/8in.; expanse of wings, 1/4in.; length of antennæ, about 1/8in. Body
red, with a shining, diamond-shaped, black patch on the dorsal surface
of the thorax; legs and antennæ black. Wings dark-brown with (in some
lights) a bluish tinge, marked with oblique, narrow, wavy stripes; main
nervure red, branching once; there are also two longitudinal, whitish,
narrow bands.[U] Antennæ very long and slender, with ten joints, which
may easily be taken for nineteen, for, after the first which is short,
round, and simple, all the other nine have two dilated portions with
a constriction in the middle, and on each dilation is a ring of very
long hairs, giving the antenna a feathery appearance.[V] Eyes very
large and prominent, almost pedunculated, brown, divided into numerous
semi-globular facets. Feet long and very hairy; coxæ short and thick,
tibiæ long and slender, claw thin; upper digitules absent, lower pair
only short bristles. Abdomen slender, segments somewhat distinct;
on each segment some hairs; the last segment ends in two thick,
conspicuous, cylindrical processes, which, in side view, are seen to
incline upwards, and beneath them is the short, conical spike sheathing
the penis. Penis red, longish, tubular, and thick, with many recurved
short hairs, and at the end a ring of short spines. Each of the two
processes on the last segment bears three or four long setæ, but there
do not appear to be any of the long cottony appendages seen in the
males of most Coccids.
[U] Signoret (Ann. de la Soc. Ent. de France, 1875), under the genus
_Monophlebus_, speaks of "les plis hyalins" as existing also in the wings
of the males of that genus.
[V] Misled by similar appearances, Burmeister and Westwood assign
twenty-five joints to the male antenna of _Leachia fuscipennis_.
Habitat--On wattle, pine, orange, lemon, cypress, rose, gorse, grass,
and, in fact, on almost every kind of native and introduced plants,
Nelson, Hawke's Bay, Auckland. It will probably appear also elsewhere,
but the climate of Canterbury and Otago may prove too cold in winter
for it.
Public-domain text, read in full here on John Shaqi.
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