198 [September, 



Lecaniiim psi-vdlieapf^riilnm iW\. 



In my last contrilnition to this Magazine (June 1920, p. 128) I 

 described, as LecaniHin a f quale of Newstead. a species found on Laelia- 

 Ciitthtjn cJeqanii in Mr. W. J. Kaye's ordiid-house at Surbiton. 

 I remarked at tlie time tliat my specimens did not conform exactly with 

 the tvpe of aeqitale. Since the pul^lication of my article, Mr. Harold 

 Morrison (of tlie U.S. Bureau of Entomology) has drawn my attention 

 to the probability that m}' insect is really Lee. p)seud]iesperidum. After 

 examination of typical examples of that species, with which Mr. Morri- 

 son kindly st;pplied me, I am convinced that he is correct in his surmise. 

 L. psendJie.spen'diou differs from aequale principally in the following 

 characters : in the greater number of the medio-dorsal pores, and their 

 forward extension almost to the level of the rostrum ; in the more 

 strongly developed marginal setae ; and in the larger size and more elon- 

 gate form of the adult insect. L. aeqitale is a very broadly ovate insect, 

 and tlie dorsal pores are differently arranged, tending to separate into two 

 loose series which seldom extend beyond the abdominal segments. 



]\li-. Morrison informs me that Lecaniiim psei/dhesj)eridu?>i is a 

 fairly common species on Orchids in the United States. 



P 111 V in aria vttis L. — Amongst the. various recorded host-plants of 

 this species, I have found no mention of the *' Mountain Ash '" (^Pyriis 

 aacuparia). Mr. Donisthorpe has sent me branches of this tree, from 

 the neighbourhood of Wellington College, thickly encrusted with the 

 scales and ovisacs of Pnlvinaria vitis. 



Newstead mentions vines and peach-trees — Crataegus, Betula, 

 AhiKs, Salix, and Cotoneasfer. Other host-plants that have come under 

 my notice are "Aspen" (Popalns frevinia), "Sloe" (Pru/uis spinosa), 

 and Lime (Tiiia enropaea ). 



Cliionaspis salicia L. — Red-currant twigs, infested with this insect, 

 were submitted to me for identification in April. Newstead notes the 

 occasional occurrence of the species u]wn Eibes sanguinetim, but I have 

 failed to find any previous record of its occurrence upon Bihes ruhrum. 

 It is conceivable that it might become a serious fruit pest if allowed to 

 establish itself upon currant bushes. 



Lepidosaplies tuhercidatiis Malen. (Fig. 10.) 



Examples of this species, hitherto recorded from Italy only, have 

 been sent to me by Mr. J. C. F. Fryer. Tbey were collected from leaves 

 of an orchid {Cguihid ill )fi sp.) at I^irkenshaw, Yorkshire, iv.l920. The 



