1g [Jimuary, 



stock, because it frequently buries itself under tbe epidermis of the 

 leaf. 



3. Chionaspis fuefurus, ritcb. 



This species is well described and figured bj Comstock in bis 

 reports before referred to, and, therefore, it is unnecessary for me to 

 describe it. Mr. Douglas sent me a species on Rihes sanguineum for 

 identification, which proved to be this species, both male and female.* 

 It does not appear to have been found on the red-flowering currant 

 bush before : the apple, pear, crab, and mountain- ash {^Sorhus aucu- 

 paria) being mentioned by other authors as the food-plants, 



4. Chionaspis salicis, Linn. 



This species was also sent to me by Mr. Douglas, on the sallow 

 and lime, and he likewise sent me some species labelled, C.fraxini, on 

 the ash, but these prove to be the same as C. salicis. My observations 

 in this respect as to the identity of the two species confirm Prof. 

 Comstock's observation. He says (1st Eep., p. 320): "Specimens of 

 Chionaspis fraxini received from England are identical with Chionaspis 

 salicis received from M. Signoret." The small size of the male scale of 

 C.furfurus has been mentioned by Comstock, only 75 mm. in length, 

 whilst the male scale of C. salicis is nearly twice the length, about 

 1'4 mm. ; but yet, on comparing the fully developed winged male of 

 each species, I do not detect any difference in size. They both 

 measure about *02 in., or "5 mm. 



The size of the male scale, however, will be found useful for dis- 

 tinguishing between this and C.furfurus, and, besides this, in C. salicis 

 the second and third plates are double instead of single, as in C. 

 furfurus. Full description and figures are given by Comstock. 



It is satisfactory to find that Mr. Douglas finally had an oppor- 

 tunity of obtaining some specimens of the C. salicis from the lime 

 tree without paying the penalty referred to in his note (Ent. Mo. 

 Mag., 2nd ser., vol. i, p. 297). 



5. Chionaspis euonymi, Comstock. 



Eor this species I am, as usual, indebted to Mr. Douglas, who 



received it from the late M. Lichtenstein, Montpellier (France). It 



entirely agrees with Prof. Comstock's description and figure, and, 



therefore, it is unnecessary for me to do more than notice its discovery 



in Europe. 



Villa Nova da Gaya, Portugal. 



* This was received on September 3rd, 1890, from Dr T A. Chapman, who found the scales 

 abundant on Ribes sanguinetim at Hereford. Now first noticed in England, yet probably intro- 

 duced with the Ribes from N. America. — J. W. D. 



