Maskell. — On Coccidae. 391 



stock's species was found on "salt-marsh grass" much ex- 

 posed to sea-spray. Mr. Cooper merely says "on grass," 

 but does not mention the species. 



Genus Poliaspis. 

 Poliaspis exocarpi, Maskell. 



This species appears to be by no means uncommon in Aus- 

 tralia. I have had specimens dui'ing the year from various 

 parts of New South Wales, on Dilhcynia ericifoUa and other 

 plants. 



There is one feature of this insect which is noticeable. I 

 find that in all my mounted slides it is very difficult to detect 

 the spinneret-groups. As a rule these are as clear (or nearly 

 so) in all Diaspids when finally mounted in dammar or bal- 

 sam as when examined in alcohol or water; but, of the four 

 slides of P. exocarpi in my collection, there is only one which 

 shows with any clearness at all the double sets of groups, 

 and that by no means as clearly as could be wished. Speci- 

 mens which, in alcohol, show the groups with perfect distinct- 

 ness are almost useless for identification after the mount is 

 completed. 



Genus Fiorinia. 



Fiorinia expansa, Maskell. 



I have received many specimens of this handsome species 

 from Mr. C. T. Musson, of Hawkesbury, New South Wales, 

 on Melaleuca linariifolia. These are much larger than the 

 original type, the puparia reaching j-ViJi-> but in other respects 

 agree completely. 



Section LECANIN^. 

 Genus Lecanium. 



Lecanium scrobiculatum, Maskell. N.Z. Trans., vol. xxv., 



1892, p. 221. ; vol. xxvii., 1894, p. 58. 



I find that this is a somewhat variable species, which is 

 apparently not uncommon in New South Wales, principally 

 on Acacia. Having received, since my paper of 189-4 was 

 printed, some specimens of the larvae, I am enabled now to 

 say that they do not differ from those of the form which in 

 that paper I named L. inngiie. Further, having had also 

 another supply of L. pinguc, I find that the feet are not 

 really absent from that form, but are nearly atrophied, very 

 small and somewhat swollen. Still further, Mr. Froggatt has 

 sent me several specimens of an insect so closely resembling, 

 in its anatomical characters, both of the above forms, although 

 differing slightly in colour and in having no dorsal tubercles, 

 that I am obliged to consider it as another variety. 



