316 Transactions. — Zoology. 



by very minute tubercles which bear a few very short hairs, 

 and the latter by equally minute sharply conical tubercles. 

 The spinnerets, anal ring, and other features are identical with 

 those of the type. 



Hab. On Exocaijnis cup-cssiformis, in the Cumberland 

 district, New South Wales, Australia. My specimens were 

 sent by Mr. Fuller, who informs me that the insect seems to 

 be confined to that particular kind of tree, and that it has been 

 long known in the district, where it goes by the name of the 

 "star-scale." 



I have no hesitation in attaching this to P. hryoides, while 

 the differences noted are only sufficient to constitute a variety 

 of that species, which came in 1893 from Fiji. 



Planchonia quercicola, Bouche. Asterolecanium quercicola, 

 Bouch^. 



I have received specimens of this on oak-twigs, from 

 Sydney, sent by Mr. C. Fuller. They were in company with 

 Aspidiotus aurantii. 



Genus Prosopophoka. 

 Prosopophora prosopidis, Maskell, var. mimosae, var. nov. 



The test of the adult female is rather larger and flatter 

 than that of the type, but of the same colour and consistence : 

 it has the same very indistinct appearance of segments and 

 dorsal carina, and there is no depression in the twig when the 

 insect is removed. 



The adult female nearly resembles P. prosopidis, but is 

 rather brown in colour than red. The antennae, mentum, 

 anal tubercles, spinnerets, and "discs" are as in the type. 



Hah. In South Africa, on Mimosa, sp. Mr. Louusbury 

 sent me specimens. 



There is nothing but the size and colour, as far as I can 

 see, to distinguish this variety. 



Genus Rhizococcus. 

 Ehizococcus casuarinae, Maskell, var. mancns, var. nov. 



Differs from the type in its slightly greener colour, and in 

 having both the antennae and the feet very small and almost 

 atrophied. 



Hah. In Australia, on Casuarina distyla. My specimens 

 were sent by Mr. Froggatt. 



This insect affects principally the axils of the twigs, and 

 is usually doubled up and curved round the twig, so that it, is 

 very difficult to examine the ventral surface even after pre- 

 paration. - 



