206 Transactions. — Zoology. 



red colour of the pellicles, and in the fact that the puparium 

 is almost always very brittle, falling off in the centre, and 

 leaving only a ring with the pellicles exposed. Mr. Olliff has 

 sent me the same insect on Hakca saligna, Sydney. 



Mr. Morgan did not describe the male of his species. I 

 have the male of var. propinqua, which is dark-red, pupating 

 under a white elliptical non-carinated puparium. Length of 

 the insect, exclusive of the spike, about ^in. The feet are 

 rather thick ; the ten-jointed antenna is" normal. 



Aspidiotus aurantii, Maskell. N.Z. Trans., 1878, p. 199. 

 Asp. coccineus (Gennad.), Maskell; Scale-Ins. of N.Z., 

 p. 42. 



This species is not confined to the orange. I have received 

 it from Australia on Eucalyptus., on pear and plum, and on 

 Laurus nobilis and Buxus scmpervirens. Mr. Cockerell has 

 sent me specimens from Jamaica on Lignum vita, and informs 

 me that in that island it does not seem to attack citrus trees. 

 Mr. D. W. Coquillett states that in California it is found on 

 many plants, the most important of which seem to be rose, 

 pear, grape, and Eucalyptus. 



In my experience the puparia of A. aurantii differ slightly 

 according to the food-plant. On orange and lemon there is a 

 rich, fat, juicy appearance about the puparium, which is red- 

 dish-biown. On Eucalyptus, Laurus, Buxus, and Lignum vita 

 the puparia are lighter-coloured and more solid. Mr. Coquil- 

 lett, who, like all the American observers, refers to the species 

 as the "red scale," mentions (U.S. Dept. of Agric. Entom. 

 Bulletin No. 23, p. 36, 1891) an insect to which he gives 

 the name "yellow scale (Aspidiotus citrimis)" occurring on 

 orange-trees in California. I do not know where the descrip- 

 tion of this species is to be found, or in what the species differs 

 from A. aurantii. 



Aspidiotus eucalypti, Maskell. Trans. Eoy. Soc. South 

 Australia, 1887-88, p. 102. Plate XL, figs. 1, 2. 



I have received specimens of this species from New South 

 Wales (Mr. Koebele) on Gasuarina sp. Although the puparia 

 were covered with much black fungus, the characteristic deep 

 groove of the female insect was clearly present. I regret that 

 in the illustration of this insect in the South Australian 

 Transactions (pi. xii., fig. Id) this feature is not properly 

 shown, and I have thought it well to give a fresh figure with 

 this paper. A similar groove, though deeper, occurs in 

 A. articulatus, Morgan, 1889; but that species differs suffi- 

 ciently in other resjDects. 



The epidermis of A. eucalypti is very distinctly marked 

 with great numbers of minute lines which resemble closely 



