30 Transaciions. — Zoology. 



joints — the third, fourth, and fifth the shortest, the sixth very 

 large, ovate, with a small projection at the tip. Feet rather 

 thick ; digitules four, all fine hairs. Mentum large, conical, 

 triarticulate ; setae very long. Abdominal extremity bearing 

 two small tubercles, each with a long seta, and two or three 

 spines ; between the tubercles protrude two rather thick pen- 

 cils of white cotton. Epidermis not thickly clothed with hairs, 

 buf on each segment is a single transverse row of small spiny 

 hairs with some small simple circular spinnerets. 



Male unknown. 



Hah. On various trees in forests, Eeefton district. New 

 Zealand. The second stage mostly on Podocarims totara or 

 various species of Fagus. 



This insect is easily distinguished from C. zecdandicum 

 by the snow-white shelly covering both in the adult aud 

 the second stage, and by the thick coating of hairs on the 

 epidermis. The larva is much smaller than that of C. 

 zealandicum, and, curiously, it differs also in being much less 

 hairy, quite the contrary of the second stage. I do not think 

 that this can be the female form of C. wairoense, because the 

 peculiar brush of digitules which distinguishes the male of that 

 species has no counterpart in C. pilosnm ; and as far as my 

 experience goes such a character would in all likelihood be 

 shared by both sexes. The female of C. wairoense and the 

 male of G. pilosum may both be discovered some day. 



Coelostoma assimile, Maskell. N.Z. Trans., vol. xxii.,p.lo3. 

 Plate A'lL, figs. 11-17. 



In my paper of last year I gave a brief description of the 

 second female stage of this insect ; I am able now to com- 

 plete it, and to add also the adult female and the larva. 



Adult female reddish-brown, occupying a deep pit in the 

 twig it lives on (mostly in the axils), the mouth of the pit being 

 covered with the mass of thick yellow wax, of irregularly 

 globular shape, already formed by the second-stage female. 

 The cavity burrowed out is frequently quite deep in the bark, 

 and even seems sometimes to extend into the wood. The 

 dimensions vary : some of the waxy coverings are only about 

 jijin, across ; others observed reach lin. The wax is very 

 hard. The adult female at first, after discarding the pupal 

 skin, occupies the whole space, and is globular, with a diameter 

 of about i^n., obscurely segmented ; but at gestation it shrivels 

 up into an extremely small shapeless mass, filling the ca%'ity 

 with red oval eggs, and becoming at last so shrivelled that it 

 is extremely difficult to find her. Antennae short, thick, 

 atrophied ; the joints apparently only five, but the fifth may 

 be made up of several, so that the normal antenna would have 



