220 Transactions.—Z oology. 
The young insect has no general peculiarities of form calling for remark, 
but is readily recognized by its edge, along which is a row of the curious 
club-shaped spines visible in the adult, and figured in vol. xi., pl. vii., fig. 
16d. But whereas in the adult insect these club-shaped spines are alter- 
nated with sharp ones, in the young the sharp spines are absent. The 
length of the body is about J, inch. 
The male insect undergoes its transformations in a test similar to that of 
the female. At least my specimen was hatched from a leaf of Drimys from 
Lyttelton on which there were a number of tests (perhaps fifty), and I was 
unable to find any difference to show which were tests of males. The 
insect is about 1, inch long, exclusive of the abdominal spike ; greenish in 
colour: form generally normal. Antenne 10-jointed: the first two joints 
very short, the rest to the seventh much longer and equal, the three last 
somewhat shorter and equal. All the joints have several hairs. Foot 
normal ; four digitules, all fine knobbed hairs. Wings rather long, hyaline. 
Abdominal spike about half the length of the abdomen. From the last 
segment of the abdomen spring two very long white sete. 
is species is more common than I imagined when first describing it. 
T have seen plants of Drimys on the hills over the town of Lyttelton with 
every leaf covered thickly with the tests of I. patella, so thickly indeed, as 
to make the whole under surface of the leaves look white. 
2. Inglisia leptospermi, sp. nov. 
Figs. 9-17. 
Test white, glassy or waxy, elongated, convex above, flat and ope? 
beneath, formed of several agglutinated segments, each segment more OF 
less convex or conical, median segments usually five in number; at ~ 
edge an irregular fringe, as in C. perforatus, but the fringe is often absent. 
Average length of test =4, inch. : 
The test, though preserving the same general form, is subject to easiest 
variations, as shown in figs. 9 and 10.* I rather think that fig. 9 15 * 
younger form than fig. 10, and that the little secondary tests show2 in the 
former become more closely agglutinated with age. : 
Each segment of the test is marked with grooves and strie radiating 
from the centre, as in the single test of I. patella. The strie, which widen 
from the apex to the base, are composed, as in the former species, of per- 
forations containing air. 
The female insect (figs. 11, 12, 18) fills the test in the adult stage, but, 
as in most of the Lecanio-diaspide, becomes when old, and after propaga 
ee 
* Fig. 10 is slightly incorrect; the segments of the marginal fringe are shown 10° 
small and regular, 
