51 Transactions. — Zoology. 



dominal spike is short, thick, and slightly curved. The insect 

 emerges from the pupal test by lifting up the posterior trian- 

 gular plate. 



Hab. In Australia, on Eucalyptus siclerophloia (large-leaved 

 ironbark). Mr. Froggatt sent me specimens from Wallsend, 

 Newcastle, N.S.W. 



This is the first species of the genus Gienochiion which has 

 been reported outside New Zealand. It is evidently so near, 

 in the characters of its tests, to the New Zealand species C. 

 fiavus and G. fuscus that I have not any doubt as to the genus. 

 The marginal hairs, the form of the feet in the adult, the 

 spiracular spines, the form of the second stage, and the 

 marginal hairs of the larva are distinguishing characters. The 

 median thick mass of wax on the adult female test approaches 

 that of C. fiavus ; but the insect is clearly distinct. Some 

 specimens also outwardly resemble the New Zealand C. 

 dacrydii. 



Ctenochiton rhizophorse, sp. nov. Plate III., figs. 13-17. 



Test of adult female (where observed) consisting, on the 

 margin, of a flat greyish- white plate of wax, which on the 

 median dorsal region rises up in a lofty pyramidal mass of 

 irregularly-triangular form : this mass is slightly rough on the 

 top, and at the sides exhibits many striations as if it were 

 built up of successive layers ; but no air-cells are apparent. 

 At the margin the wax extends in a very fragmentary 

 fringe. 



Female of the second stage covered by yellowish-brown 

 wax, which at the earliest period seems to be very thin and 

 fragmentary, and becomes thicker as the insect grows, until 

 at last it forms broad quadrangular plates round the margin, 

 with a median longitudinal mass which is less elevated than 

 in the adult. This test also extends in a small fringe, but the 

 whole of it appears to be very brittle, so that amongst many 

 specimens only one or two may exhibit it entire. 



Adult female (where observed) of clearly Lecanid form, 

 greyish-brown in colour ; length about -Jin. The specimen 

 seen is acuminate anteriorly. Antenna? and feet not observed. 

 Round the margin runs a row of rather long spines. Ab- 

 dominal cleft and lobes normal. Probably the dorsal region 

 would be considerably convex. 



Female of the second stage yellowish-brown, flattish, ellip- 

 tical ; length from about ^yin. in the early part of this stage 

 to about T V n - later on. Antenna? of six joints, of which the 

 third and sixth are the longest and bear a few hairs. Feet 

 presenting no special character ; the tibia is as usual shorter 

 than the tarsus ; the digitules seem to be fine hairs. Pound 

 the margin of the body is a row of long slender spines as in 



