NOTES ON COLLECTING. 335 



much so that in most of its former haunts it has disappeared, and we 

 fear that at no distant date it will be sought for in vain in the few 

 and remote places far removed from its former head-quarters, in 

 which it is now sometimes found. We believe the chief cause of this 

 is the very regrettable fact of its having been over collected, hence most 

 of the females get destroyed ; also the grand old woods are being 

 removed with the result that timber felling and hauling is continually 

 going on, and these disturbing influences all combine to bring the time 

 when not only L. arion will be extinct in our Cotteswolds, but many 

 other less rare species will have died out. Again, in one place in which 

 I used to watch it, buildings have been erected, and in another spot in 

 which I first saw it, quarrying operations are now carried on. All 

 this means new roads made, fresh hauling tracks, the herbage and 

 ants' nests more disturbed, while cattle grazing is on the increase, and 

 most years in early spring the commons and hillsides are often ablaze 

 with burning dry bents set on fire by the village lads (matches are too 

 common in these days of cheap cigarettes). The average of our 

 Cotteswold specimens of L. arion are not so large as those I have seen 

 from Devon and Cornwall, or so fine as some I have examined from 

 the Continent. — Ibid. 



Immigration of Euchelia jacob.e.e. — I feel quite distrustful of 

 myself in calling in question anything which Mr. Harrison writes, but 

 his note upon the above fairly astonishes me. The insect is naturally 

 so lethargic and heavy, that one cannot but think there must be some 

 other explanation of its appearance, in some numbers, near Chester- 

 le- Street. May it not have been a case of cumulative retarded 

 emergences ? — (Eev.) C. R. N. Burrows, The Vicarage, Mucking, 

 Stanford-le-Hope. November IQth, 1905. 



Pyrameis atalanta and Euchelia jacob.e^. — In answer to Mr. 

 Harrison's request (p. 300) I can make the following notes : P. 

 atahoitavi&s in profusion at Buckfastleigh, Devon, from end of August 

 till nearly end of September, the specimens being particularly fine in 

 size and condition. PJ. jacobaeae, a few seen for a day or two about 

 July 1st, in same locality, condition rather poor. The larvre of E. 

 jacobaeae were present in large numbers on Seneciu ridj/aris, in two 

 separate lots, one at the beginning of August, and the other at 

 beginning of September ; in both cases none being under half-grown. 

 — Philip de la Garde, Shaldon, near Teignmouth. Xorcmber 20th, 

 1905. 



Polia CHI IN Monmouthshire. — Referring to the Rev. G. H. 

 Raynor's note {antea, p. 295) on the distribution of PoUa chi, I see he 

 states that the most southerly point of its main habitat in England 

 seems to be in the southwest of Herefordshire, therefore, it may, 

 perhaps, be worth reporting its occurrence still further south in 

 Monmouthshire, at Tintern, where we find both the caterpillars and 

 moths in plenty. I do not remember having seen it noted before, but 

 we have observed that the larvae, as well as those of P. tiaricincta, 

 which also occurs here, though less commonly, are more generally to 

 be found on low plants growing by the side of stone walls and build- 

 ings, than on those in a more open situation. — J. F. Bird, The 

 Nurtons, Tintern, Monmouthshire. Xoveiiiber IGth, 1905. 



Perizoma bifaciata (Emmelesia unifasciata) five winters in pupal 

 .stage. — Mr. Prout's note {ante, p. 800) reminds me to put on record the 



