Appendix. 



497 



necessary that this pest sliouhl lie kept in view, as it is one tliat is veiy 



seriou-; iu other eouiiti-jes. In faet, plants should not'lje allowpfl free 



import in tliis way \\ithout. iiispeeti.-.n, or 



this serious pest may some day he spread 



far and wide over tlie oounti'y, addinj; 



anotlier to the ah'eady many trouhles of tlie 



British fruit <4r(j\\er. 



It is liuowii in Africa, as the A\'liite Peach 

 Scale or Peach l>iaspis (o). 



DlSTRIISUTIOX. 



Fernald (.">) gives the distrihution as fol- 

 lows : — EuL;laiid, Switzerland, Italv, New 

 Zealand, Ceylon, Australia, Plawaiian Is- 

 lands, Japan, China, Sijuth Africa, iNIauritiiis, 

 Brazil, West Indies, Panama, ^Massachusetts, 

 Washington, ( )]no, Georgia, Florida, Cali- 

 fornia. 



Louusbury (■")) gives also the Cape and 

 Fiji, 



Food Pl.vnts, 



Peach, plum, cherry, apricot, walnut, 

 grape, mulberry, geranium, hibiscus, etc. (4). 

 Newstead sa\-s it also occurs on the dwarf 

 flowering almond and tea bushes iu Japan, 



\F. E. 

 Fie. :j-Ji. 



loUII) OTI MulllL'll}'. 



Green says it is ^er}' pre- 

 valent on pelargoniums in Ceylon, 



LiPE-HiSTOi!Y, Etc, 



I have n(jt seen any British speci- 

 mens of this pest, so give Newstead's 

 account rcrbatiin (2) : '' To the unaided 

 eye the scale or co\'ering shield of the 

 female is more or less circular, and 

 closelj' resembles the common rose 

 scale {DiitKjyifi rosse), but is of a dusky 

 white, the old examples being smoky 

 grey or ochreous, and harmonising 

 with the colour of the bark. They 

 are the size of an ordinary pin's head, 

 and measure from I to 2 mm. Beneath 

 this scale the wingless, legless, inert, 



fixed body of the female undergoes its transformations, lays its eggs, 



and dies (Figs. 322 and 323). 



■.i.—Diaspix peiitaijinia (y). 

 From Mulljerry. 

 (Greatly enlarged.) 



