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
Test of female of second stage very thin, white, waxy, flat, divided
into segments with concentric curves and radiating lines as in the
adult. Fringe of broad segments. No air-cells. Length, about 1/15in.
Test of male glassy, white, elongated, slightly convex, divided into
segments similarly marked to those of the female. Abdominal segments
separated from the test by a transverse line, or hinge. Length, about
1/6in.
Adult female bright-green in colour, thick, elongated or pyriform,
the cephalic portion somewhat acuminate; length sometimes reaching
1/2in. It produces a conspicuous depression in the leaf, in which the
body is partially buried. Antennæ of six joints (apparently seven, but
the third joint shows the false division or depressed ring), often
atrophied. Feet normal, coxæ and femora thick. After gestation the
insect frequently becomes brown, covered with a mass of white mealy or
felted secretion.
Female of the second stage thin, filmy, translucent; flat, elongated,
with wavy outline; colour green; length, about 1/20in. Antennæ of six
joints.
Adult male greenish-yellow; length, about 1/15in. Antennæ of nine
joints. Feet normal; digitules absent. A strong spine at the extremity
of the tibia.
Habitat--On _Panax arboreum_, _Coprosma lucida_, _Hedycarya dentata_,
_Atherosperma Novæ-Zælandiæ_, _Rubus australis_; Canterbury, Otago,
Wellington, Nelson, Auckland, Hawke's Bay.
This is probably the largest known species of the Lecanidinæ. Its size
and bright-green colour in the adult state clearly distinguish it. The
female of the second stage resembles nearly that of _Ct. perforatus_,
but is somewhat thicker, and the markings of the segments of the test
are different.
Genus: INGLISIA, Maskell.
N.Z. Trans., Vol. XI., 1878, p. 213.
Test of female glassy, elevated, striated with radiating rows of
air-cells. Fringe not always present in the adult stage.
In the genus _Fairmairia_, Signoret, there is also an elevated test,
but it is waxy, and exhibits no air-cells, and has no fringe in any
stage.
40. Inglisia leptospermi, Maskell.
N.Z. Trans., Vol. XIV., 1881, p. 220; Vol. XVII., 1884, p. 27.
(Plate IX., Fig. 2.)
Test of adult female white, glassy or waxy, elongated, convex above,
flat and open beneath, formed of several agglutinated segments, each
segment more or less convex or conical, median segments usually five
in number; at the edge an irregular fringe, but the fringe is often
absent. Average length of test, 1/10in. The marginal segments sometimes
assume the form of small cones, as if a number of secondary tests were
attached to the principal one. All the segments are marked with striæ
radiating from the apex of each: the striæ, which are composed of
air-cells, widen from the apex to the base.
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