Maseell. — On New Zealand CoccidEB. 217 



populi, Barensprimg, and others, but differs so much that I can refer it 

 absolutely to none, and am forced to consider it as new. Still it may be 

 only a variety. 



3rd Genus, Aspidiotus, Bouche. 



1. Aspidiotus aurantii, mihi. 



(Trans., vol. si., p. 199). 



I learn from Mr.Comstock, entomologist to the Department of Agricul- 

 ture, Washington, that this species abounds, and does very great damage, 

 on orange and lemon trees in California and Florida. I do not gather from 

 him, however, that any description of it was published previous to my paper 

 of 1878, so that, I presume, my name for it will be retained. 



While in Melbourne last year, I observed this insect in great numbers on 

 orange trees there. But the fruit which has been sold in the shops here 

 during the last few months seems to have been comparatively free from it. 

 Probably, as in other countries, the pest has cycles of maximum and mini- 

 mum frequency. 



2. Aspidiotus nerii, Bouche. 



I have lately found, on Coprosma, in the North Island, this species, 

 which is exceedingly common in Europe, but seems to have hitherto not 

 spread in this country. Its favourite habitat is the Nerium oleander, and in 

 France and Northern Italy it does very great damage to that and several 

 other plants. In Melbourne I noticed many plants terribly infested with it. 

 The puparium is whitish, and, as in all Asjndioti, round and flat. The 

 species may be recognized by the four anal lobes of the young insect (of 

 which two are somewhat prominent) and by the form of the scaly hairs at 

 the anal extremity of the adult female: these hairs have, some a rectangular, 

 some a serrated tip. 



4th Genus, Fiorinia, Targioni. 



1. Fiorinia astelim, mihi. 



Trans., vol. xi., p. 201, under the name Biaspis gigas, corrected in vol. xii., p. 292. 



It is to be noted that the larval form of the male of this species, that is, 

 the stage succeeding the young insect, resembles not a little an adult female 

 of Mytilaspis dritmjdis, showing the four anal lobes extending some way into 

 the body, as in pi. v., fig. 5a, Trans., vol. xi. : but it is somewhat more 

 deeply corrugated, and of a greyish yellow colour instead of red. The form 

 of the puparium, which is quite distinct in the two species, will prevent 

 mistake. In F. astelim the puparium of the male is long, narrow, thin, and 

 on the under side bi-carinated. The puparium of M. drimydis more nearly 

 resembles that of M. pomorum, and has no keels. 



Amongst the type slides of Coccidae deposited by me with the Institute, is 

 one showing the male larva of Fiorinia in the act of changing into the pupa. 



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