41 Transactions. — Zoology. 



Cockerell, found on peach-trees in America, and a new im- 

 portation there. [For reasons unknown to me, the specific 

 name of this insect is given by both Mr. Cockerell and 

 " Insect Life " as " lanatus "; but Diaspis is surely feminine.] 

 This is entirely different from Aonidia fusca ; the form of the 

 male puparium and the spinneret-groups of the female are 

 sufficient distinctions. 



Genus Diaspis, Costa. 

 Diaspis pinnulifera, Maskell. N.Z. Trans., 1890, p. 4; 



1892, p. 208. 



In the " Canadian Entomologist," 1894, p. 127, Mr. T. D. 

 Cockerell observes that the " female of D. pinnulifera presents 

 an extraordinary resemblance to Aspidiotus dictyospermi, 

 Morgan (Ent. Mo. Mag., August, 1889, p. 352), but the form 

 of the male scale will at once separate it from any Aspidiotus. ,> 



The only three references to A. dictyospermi which I can 

 find are those of Mr. Morgan and Mr. Cockerell just men- 

 tioned, and one by Mr. Newstead (Ent. Mo. Mag., August, 

 1893, p. 185). The two first make no definite mention of the 

 male scale ; but the last says, " Scale of the male of the same 

 colour and has the same structure at apex as the female." 

 It is presumable therefore that in A. dictyospermi the male 

 puparium is " greyish- white " (Morgan), or "reddish or 

 orange-brown" (Cockerell). But that of D. pinnulifera is 

 quite clearly pure-white, and it is not at all like an Aspidiotus 

 male, being cylindrical and carinated as in Diaspis roses, or 

 even as in many species of Chionaspis. (See also D. amygdali, 

 below.) 



According to Mr. Morgan, the two " long plates " on each 

 side of the female abdomen are " serrated " in A. dictyospermi. 

 I cannot detect any serrations in the "feathery processes" of 

 D. pinnulifera. 



Diaspis boisduvalii, Signoret. 



Occurs at Adelaide, on hothouse orchids (Cattleya and 

 Dendrobium). My specimens are from Mr. J. Quinn, Secre- 

 tary to the South Australian Gardeners' Society. I have 

 already reported it on similar plants in New Zealand ; and 

 Mr. Koebele has sent me a leaf of orchid from Honolulu 

 infested rather badly by this insect. 



Diaspis amygdali, Tryon. Diaspis lanata, Morgan and 



Cockerell. 



I have received from Mr. Koebele a twig of peach-tree from 

 Sydney, and another of the same tree from Brisbane, on both 

 of which are a number of insects, which are certainly of the 

 genus Diaspis ; and close examination shows that they are 



