HEMIPTERA 331 



Siphonophora rosce, Reaum. &ose Fly 



This pest has long been known in the country, and apparently 

 is common everywhere. 



Siphonophora granaria, Kirby 

 This species is also widespread throughout New Zealand. 



Mysus cerasi y Fabr. Black Aphis ; Black Fly 

 This pest has been known in New Zealand since the early fifties, 

 and appears to be common throughout the Dominion. It particularly 

 attacks peach, cherry and plum trees, making its appearance in the 

 early spring, and doing most damage when the trees are in bloom, 

 and the foliage and fruit are young. 



Family COCCIDJE 



The nomenclature of this family has recently undergone a com- 

 plete revision, and I am indebted to Mr Guy Brittin of Christchurch 

 for a correct list of the species. As, however, most fruit growers only 

 know the names which appear in Maskell's papers, and in the publica- 

 tions of the Agricultural Department, I have retained these in paren- 

 theses for the sake of reference. 



Aulacaspis rosce, Sandberg (Diaspis rosce) 



This species, which attacks rosaceous plants roses, blackberries, 

 raspberries, etc. has been reported from Canterbury and Hawke's 

 Bay. It was first recorded by Maskell in 1878. 



Diaspis boisduvalii, Signoret 



This scale has been found on various species of wattles (Acacia), 

 and on some hot-house plants. It was also recorded by Maskell in 1878. 



Chionaspis citri, Comstock 



Originally imported from America, this destructive insect is found 

 on species of Citrus in the north of New Zealand ; it is also commonly 

 introduced on oranges from Sydney. 



Chionaspis dubia, Maskell 



Originally described by Mr Maskell in 1881, who stated that it 

 was common on many plants, Coprosma, Rubus, Asplenium, etc. In 

 re-describing it in 1887, he added Pellcea to the plants on which it 

 feeds, and gave Canterbury and Auckland as habitats. In 1891 a 

 small form of it was taken at Reef ton on leaves of Leptospermum, and 

 at Wellington on Asplenium and Cyathodes. In 1915 it was reported 



