8 Transactions. — Zoology. 



I shall leave it now as distinct, though much nearer to M. 

 hptospermi than anything else, and a probable link between 

 that and M. pijriformis. 



On account of the bent shape which this insect takes, from 

 curling round very small twigs, it is very difficult to extract 

 it from its puparium without damage. 



M3rtilaspis gloverii, Packard. 



M. gloverii, Packard (Comstock, Ag. Eep. 1880, p. 323). 



This insect has been sent to me from Melbourne, on a leaf 

 of orange. I doubt its being really specifically distinct from 

 M. citricola, Packard, the only difference apparently being in 

 the narrower form of the female puparium. Professor Com- 

 stock, however, so definitely urges the separation of the two 

 that I do not venture here to disturb his arrangement. Mr. 

 Douglas (Ent. Mo. Mag., March, 1886, p. 249) considers 

 M. citricola as identical with M.fiavescens, Targioni. 



Genus Chioxaspis, Signoret. 



Chionaspis dubia, Maskell. Scale-Ins. of N.Z., p. 51; X.Z. 



Trans., vol. xiv., p. 216. 



An insect which I consider to be only a small form of this 

 species occiu's at Eeeftou on leaves of Leptospermum, and at 

 Wellington on Asplenium and Cyatliodes. I find nothing 

 except size which can be taken as a clear distinction : the 

 female puparium averages about ^in. in length, and the pel- 

 licles are proportionately larger than in the type. The seg- 

 ments of the body are certainly more conspicuously prominent ; 

 but there is no character on which I feel justified in consider- 

 ing this form as even a variety. 



Chionaspis dysoxyli, Maskell. Scale-Ins. of X.Z., p. 55; 



N.Z. Trans., vol. xvii., p. 22. 



In my paper of 1889 (vol. xxii., p. 135j I mentioned the 

 fact that the males of this species ai"e ^frequently entu'ely 

 apterous. I shall presently (vide post) have to report the 

 same phenomenon in Eriococcus hoherice, and an almost similar 

 condition in Lcachia zealandica. There are thus three of our 

 New Zealand Coccids having males abnormally developed. 



I regret that when writing last year I overlooked a paper 

 by Dr. F. Low (1883) on Leucaspis pusilla, in which that 

 species is mentioned, together with Chionaspis salicis and 

 Eriococcus (Acanthococcus) aceris, as having apterous males. 

 My only excuse is that I read German with great difficulty. 

 However, I see no harm in recording now a list of the few 

 Coccid species reported as exhibiting this abnormal character. 

 They are less than a dozen out of several hundreds of species 

 known in different parts of the world : and the point is not 



