Maskell. — On Coccidse. 51 



gatt, from Sydney. I think that the only Coccids hitherto 

 reported upon water-plants are Chionaspis spartince, Corn- 

 stock (2nd Cornell Univ. Rep., 1883, p. 106), which differs 

 considerably from ours, Coccus (?) zosterce, Fabr. (Signoret, 

 Essai, p. 467), and Dactylopius nipce, Mask. (1892). There 

 are also a few which live on plants exposed to spray on the 

 sea-beach, such as Ctenochiton rhizophora of the present 

 paper, or Lccanium maritimum, Green (MS.), in Ceylon. 



Genus Fiobinia. 



Fiorinia stricta, Maskell. N.Z. Trans., vol. xvi., 1883, 



p. 124. 



This insect occurs plentifully, in company with Chionaspis 

 dysoxyli, on the hills above Lyttelton,on Holier ia angustifolia. 



Fiorinia expansa, sp. nov. Plate II., figs. 8-13. 



Female puparium snowy-white, very broadly pyriform ; 

 length, about -^in. Viewed dorsally, only one pellicle (that of 

 the larva) can be seen at the end ; but on turning over the 

 puparium the second pellicle is seen to occupy nearly all the 

 length and about half the width, and to be much larger than 

 the adult female. Both pellicles are yellow, the second being 

 lighter-coloured than the first. The white secretion spreads 

 laterally from the second pellicle more conspicuously than is 

 usual in the genus. From the larval pellicle there usually 

 spring a number of very delicate, longisb, curling white 

 threads, which are scarcely to be made out except with a 

 strong lens. 



Male puparium snowy-white, with a single yellow terminal 

 pellicle ; form cylindrical, not carinated ; length, about ^in. 



Adult female orange-yellow ; elongated, smaller than the 

 second pellicle, segmented ; length about ^in. T ne cephalic 

 extremity is somewhat cylindrical and truncate, a feature 

 which is not uncommon in Fiorinia. The abdominal ex- 

 tremity is also somewhat truncate, or even, in some speci- 

 mens, slightly concave. There is an exceedingly minute 

 median depression, but no lobes ; on each side are two or 

 three very short spines. There are no groups of spinnerets. 



The second female stage (the pellicle) is elongate, distinctly 

 segmented ; length about ^in. The abdominal extremity is 

 much like that of the adult, truncate and without lobes. 



Male unknown. 



Hab. In Australia, on Melaleuca linariifolia. Mr. Froggatt 

 sent me specimens from Bankstown, near Sydney. 



At first sight the puparium of this insect suggests a 

 Chionaspis, and the non-carinated male puparium suggests a 

 a Mytilaspis. It is easy also to mistake the large second 

 pellicle for an adult, and this seems to indicate still more a 



