Maskeni.—0On some Coccidee in New Zealand. co -— 
what thinner and of about equal length. The tarsus does not taper to the 
claw as in the other Coccide, but is cylindrical, ending, as in fig. 22e, as if 
suddenly compressed and bent downwards. The claw, in which this insect 
differs from all other Coccidex, is double, opening like the hooks on the foot 
of the housefly; it does not spring directly from the tarsus but is set in a 
sort of ring or socket. At the root of the claw, and spreading over it, is a 
fan-shaped translucent appendage which is not observable in any other 
species of the Coccide. Above the claw, near the abrupt angle of the end 
of the tarsus, is a long stiff bristle, slightly curved at the end. 
The abdomen, divided clearly from the thorax, is nearly round. The 
transverse bands seen in the young insect are not now distinct, but may be 
traced. The anal markings, fig. 22f, differ from those of all other Coccide. 
They form an elongated ring on the abdomen, not unlike an Australian 
boomerang in outline; the outer edge marked like a fine comb, and with 
a row of small circular spots following the inner contour. I cannot detect 
any hairs or cilia. 
The fringe of this species, which borders the whole test, is very delicate 
and pretty. Itis quite white, glassy and transparent; the threads, very 
fine, are set close together, and their great length gives to the insect a 
peculiarly elegant appearance. Under the microscope they are seen to be 
composed of three parts; a small socket in which is set a vase or cup, and 
springing from this a long cylindrical glassy tube, apparently open at the 
end. Very great care is needed in handling the insect, to avoid breaking 
this very delicate fringe. The cups will remain attached, but the long glass 
tubes fall off with almost the slightest touch ; see fig. 225. " 
This genus, Powellia, presents so many MACH Heg in its general shape, 
in the wing-like appendages, in the divisions of the body, in the shape of 
the antenns, the peculiar foot and the abdominal markings, that it scarcely 
seems related to the members of the family of the Coecide. On the other 
hand it has many affinities with the family, and it will fitly conclude the 
series of papers which I have been able to draw up this year. I feel sure 
that there must be many species of Coccide yet to be discovered in New 
Zealand; perhaps at some future time I may be able to describe them. 
DESCRIPTION OF PLATES, V.—VIIL.* 
Coccrpz.— Plate V., figure, 1.—Dtaspipz, 
Fig. a, Mytilaspis pomorum : portion of puparium, showing discarded tests of first 
iwo stages: magn. 40 
b, Mytilaspis pomorum : rja, female with eggs: magn. 25 diams. 
* The measurements are one-third less than stated, the original drawings having 
been reduced, 
X 
