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
The adult male is normal of the genus. The legs are very long and
slender; the four digitules are fine hairs. At the extremity of the
tibia there is a strong spine. Abdominal spike, or sheath of the penis,
slightly curved, with a seta on each side of its basal tubercle.
Antennæ of ten joints; the first two very short, the rest longer and
equal. On the last joint are several long hairs, of which three are
knobbed.
Habitat--On _Brachyglottis repanda_, _Panax arboreum_, _Leptospermum
scoparium_ (manuka), _Elæocarpus dentatus_ (hinau); Wellington.
The species is distinguishable by the shape and colour of the test and
the arrangement of the spinnerets, in the adult female. The tests of
the second stage may sometimes be taken for adult _Ceroplastes rusci_,
Linn.; but can be easily distinguished on examination of the enclosed
insect.
35. Ctenochiton fuscus, Maskell.
N.Z. Trans., Vol. XVI., 1883, p. 131.
(Plate VII., Fig. 6.)
Test of the adult female elliptical in outline, flat below, convex
above, the elevation being greater than usual; almost black in colour,
composed of a thin dark waxy secretion. The fringe is conspicuous, and
has the appearance of teeth, the segments being sharply triangular and
set closely together. Length of test sometimes nearly 1/4in., breadth
1/7in., height 1/10in. Inside of the test whitish.
Test of male glassy, white, elongated, slightly convex.
Adult female filling the test, shrivelling at gestation. Antennæ short,
probably seven-jointed, but the joints are confused; on the last joint
several hairs. Foot having the tibia expanded at the extremity; upper
digitules strong and thick, lower pair ending in conspicuously broad
plates. On the edge of the body a row of conical spines. Colour almost
black.
In the second stage the female is less wavy in outline than in other
species of the genus, and in its later period is somewhat thick, with
the edges turned inwards. Feet normal; digitules fine. Antennæ short
and thick, with six joints, of which the third and fourth are the
longest; on the last joint some long hairs. The abdominal lobes are
irregularly triangular.
Young insect normal.
Adult male unknown.
Habitat--On _Brachyglottis repanda_, _Panax arboreum_; Port Hills,
Canterbury (Dry Bush).
Distinguished by its large size, great convexity, and black colour,
which is not due to fungoid growths, although these, as usual,
accompany it.
36. Ctenochiton hymenantheræ, Maskell.
N.Z. Trans., Vol. XVII., 1884, p. 25.
(Plate VIII., Fig. 1.)
Test of adult female waxy, circular, convex, dirty-white, yellow,
or brownish, formed of a number of hexagonal or octagonal segments,
which are also convex, giving it a rough appearance. Fringe not very
conspicuous. Diameter of test, about 1/12in.
Test of male glassy, dirty-white, oval, segmented, slightly convex,
segments of fringe small. Length, about 1/16in.
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