118 [May. 



The ovisac of inermis (fig. 3, c) is quite devoid of glass}' filaments, 

 as might be expected from the total absence of dermal spines on the 

 body of the insect. 



In my original description of the species (Ent. Mo. Mag., Ma}' 

 1915, p. 17(j) I remarked upon the conspicuous thick-rimmed pores 

 with which the derm is closely set, and I described them there as 

 " opening into tubular ducts." I now find that this was a mistaken 

 interpretation of the conditions. Examination of better preparations 

 shows clearly that each thick-rimmed pore is — in reality — sunk at the 

 bottom of a duct which itself opens on to the surface (see fig. 3, d). 

 Pores of the same character, varying only in size, occur on most other 

 s])ecies of Eriococcus, and are probably concerned in the secretion of the 

 matei-ial of the ovisac. 



Eriococcus devoniensis Green. 



I believe that Lindinger has thrown dovibt upon the identity of my 

 species, holding it to be inseparable from E. ericae of Signoret. I have 

 examples of the latter species from France, sent to me by Dr. P. 

 Marchal, and can see no very close resemblance between them and 

 E. devoniensis. My examples of ericae display a complete marginal 

 series of large spines, with sparse longitudinal series of very much 

 smaller and inconspicuous spines on the dorsum. In devoniensis, on 

 the other hand, the spines are all of approximately equal size and are 

 thickly distributed over the doi-sum. with no distinct marginal series. 



Gossyparia ulmi Geoff. 



Has been report^ed from the following varieties of Elm, in a nui-sery 

 garden near Woking: — Ulmiis jylumosa, TJ. dampieri, "Huntingdon 

 Elm," "Purple Elm" ("heavily infested^, "American Elm," "Louis van 

 Houlte," and English Elm frarely). 



Kermes quercus L. 



During a short visit to Yorkshire, in September 1918, I was pleased 

 to make the acquaintance ot tins uncommon species. It was found, in 

 ■profusion, amongst clusters of adventitious buds on the stem of a single 

 'Oak tree in Staynor Wood — just outside the town of Selby. Isolated 

 individuals only were observed on a few other Oak trees. Its habitat 

 liere was somewhat different to that recorded in Newstead's " British 

 Coccidae," where it is described as occurring in the crevices of the bark. 



