148 Transactions. — Zoology. 



last subcircnlar ; convex, distinctly segmented ; length about 

 ^\^in. Antennae of six subequal joints. Feet as in the adult, 

 but the knobs of the digitules are larger. Anal tubercles con- 

 spicuous, with a short pencil of setae between them. A row 

 of very strong spines runs round the edge, and on the dorsum 

 there are four other longitudinal rows — two close together 

 down the median region, the two others half-way to the edges ; 

 the marginal spines often bear glassy tubes. 



Larva active, naked ; at first yellow or orange, and later a 

 deep crimson-red ; elliptical, slightly convex ; length about 

 jijin. Antennae of five subequal joints, rather thick ; the 

 last joint bears several long hairs. Feet rather thick. Eows 

 of spines large and conspicuous, arranged as in the second 

 stage. 



Male pupa enclosed in a cylindrical, loosely-felted, cottony 

 sac, which is ojoen at the posterior end. Length of the sac 

 about xV^^- Colour of sac pure- white. 



Male orange-yellow, the thorax darker than the abdomen. 

 Length about Ty^^i., with the usual pair of very long white 

 cottony " tails " from the last abdominal segment. Antennae 

 of ten joints, each shortening from the head to the tip. Abdo- 

 minal spike presenting the usual curved appendage noticeable 

 in Acanthococcidce. 



Hah. In New Zealand, on Fogns menziesn, Eimutaka 

 Mountains, near Wellington, and Caj)leston, near Eeefton. 

 The adults and the females at the close of the second sta?e 

 afi'ect the axils of the twigs. The larvae and females of the 

 early second stage, as also the male sacs, are found principally 

 on the leaves. The adult, partly covered with its cotton, is 

 usually inconspicuous, and not easy to find. 



The absence of anything like a sac, such as that usually 

 presented by Eriococcus, distinguishes this species from any 

 yet described in this country ; and it is not at all like any 

 foreign species. The second stage may be easily mistaken for 

 Illiizococcus. The male presents no special features ; but its 

 sac may be distinguished from those of E. vmltisinnus , E. 

 raithhyi, &c., by its purely-white colour, and from Soleno- 

 lihora fagi by its loose open texture. The rich-crimson colour 

 of the female when crushed is very fine. I have pleasure in 

 attaching to this species the name of Mr. Cavell, of Inangahua, 

 who has been assiduous in collecting and studying Homoptera 

 in that district. 



The various kinds of Fagns tree's, have, as this paper shows, 

 furnished me so far with six species of Coccids, all of which 

 will, I believe, stand the test of careful scrutiny as distinct 

 species. Two of them — SoIeno2)hora fagi and Dactylojn^is oh- 

 tcctus — are of somewhat special interest, and the others are in 

 their way also curious. I believe that there is also a Lecanid 



