%% Transactions, — Zoology, 



Male puparium narrower than that of the female, and a good deal 

 darker, being sometimes almost black ; length about -£$ inch : not cari- 

 nated. 



Adult female of normal form of Mytilaspis. Abdomen ending in two 

 median lobes : along the edge several deepish curvilinear incisions between 

 which are some strong spines. Five groups of spinnerets : lower pair with 

 14-16 orifices, upper pair 12-16 : uppermost group 4-6. 



I have not seen the adult male : the pupa exhibits apparently a very 

 long abdominal spike. 



This insect is closely allied to M. pyriformis, mihi, but differs in the 

 lobes of the abdomen in the female, and in the very dark puparium of the 

 male. However, I cannot consider it with certainty a new species. It is 

 undoubtedly not a Chionaspis. 



Hab. On Astelia cunninghamii, an epiphyte on numbers of our forest 

 trees. 



2. Mytilaspis pyriformis, mihi. 

 (Trans., vol. xi., p. 194 ; vol. xii., p. 121.) 



This insect occurs abundantly near Wellington on Dysoxylon spectabile, 

 in company with Chionaspis dysoxyli and Fiorinia astelia. It may be 

 easily distinguished from the latter, of course, by the second pellicle of 

 the female ; from the former it differs by the puparium of the male, 

 which in the Mytilaspis is brown and not carinated, and by the generally 

 much larger size and brown colour of the female puparium. The abdominal 

 segment of the female is also a clear distinction. 



Some of my specimens attain a length of ^ inch for the female pupa- 

 rium. 



Genus Chionaspis, Signoret. 



1. Chionaspis dysoxyli, sp. nov. 



Figs. 4-6. 



Female puparium thin, flattish, pyriform, white in colour with a faint 

 pink tinge when the egg-mass beneath shows through it. Length about 

 ■£% inch. The second pellicle is comparatively large. 



Male puparium white, narrow, carinated ; length about -^ inch. 



The insect affects principally the leaves of the plant, and the puparia 

 are usually clustered thickly along the midrib. 



Adult female of general form of Mytilasjns, not very deeply corrugated ; 

 colour, yellowish red. Abdomen ending in a broken curve with many 

 curvilinear incisions. There are fourteen lobes, of which the two median 

 are the largest ; separated from them by a spine on each side are two others 

 rather smaller ; then another spine and a short open space ; and then three 

 smaller lobes and another spine ; another space, and then a single small 



