172 
( THE ENTOMOLOGIST. 
it only remains to congratulate most warmly the author on the 
skill and perspicacity by which he has added yet one more 
species to the happily growing list of western palearctic butter- 
flies. My sole regret is that these species-within-species, so to 
speak, have not hitherto disclosed themselves among our island 
Rhopalocera. But it is not altogether impossible that such a 
result may be achieved in an altogether unexpected quarter by 
pursuing the lines of investigation successfully traversed by 
students of the meridional fauna. The nearest approach we have, 
superficially speaking, to A. aragonensis in this country is 
A. corydon, var. fowleri, South, which is beautifully figured in the 
‘Entomologist,’ vol. xxxiii, pl. iii, figs. 4 and 5. The female, 
however, in contour and colouration shows unmistakeably that 
it is a true variety, or aberration of corydon, and has no connec- 
tion with aragonensis ; while the fact that it flies in England 
simultaneously with the former and type form confirms this 
identification. 
Harrow Weald, July, 1916. 
COCCIDH AND ALEYRODIDA IN NORTHUMBERLAND, 
DURHAM, AND NORTH-EAST YORKSHIRE. 
By J. W. H. Harrison, M.Sc. 
Tur following species are either new to my local list of 
Coccide, étc., or recorded for additional localities :-— 
CoccIp. 
Aspidiotus britannicus (Newstead).—This rare species has 
only been taken locally on ornamental hollies in Middlesbrough 
Park, and then only in very small quantity. I have searched 
wild hollies at very many points in Durham and Northumberland 
for it without any result. 
Chionaspis salicis (L.).—Abundant everywhere (including both 
divisions of Northumberland); only recorded because of its 
extraordinary effect on some sapling ashes near Birtley, Durham. 
They were very curiously and somewhat regularly pitted and 
flattened. 
Eriopeltis festuce (Fons.).—On grass near Wolsingham, Co. 
Durham, on grass on an open moor facing south, altitude over 
1000 ft. Also at Ninebanks, Northumberland. 
Asterolecanium variolosum (Ratz.).—Near Birtley, on oaks in 
one of the oldest established woods in the neighbourhood— 
certainly not in any of the other oak woods of the vicinity. 
Lecanium ciliatum (Douglas).—In searching for Asterolecaniwm 
