460 Field Notes. 



East Riding Pseudoscorpions. — Chthoiihis rayi 'w^.s taken 

 among-st sticks at Tansterne, near Aldboroug"h, 8th August, 

 and on the same date Cheiridmvi musceorutn was found hi a 

 glass of water on the dinner table at Thorp Garth, Aldborough. 

 Mr. H. Wallis Kew, who has kindly identified both, states 

 that the latter is an addition to the Yorkshire list. — T. Fetch, 

 Hedon. ^.^^ 



MOLLUSCS. 

 Arion ater var. alba L. in North Lancashire. — On the 



evening of either the 21st or 28th of June last (a Sunday) my 

 daughters brought to me three white slugs. As I could not make 

 them out they were forwarded to Mr. W. Denison Roebuck. 

 He writes that they are Arion ater var. alba L. , the Limax albus 

 of the Syst. Nat. of 1758. The specimens were taken at random 

 from what was evidently a brood, on the hedge-bank between 

 Swarthdale and the end of the lane to Swarthmore Hall. 

 Possibly some may survive the winter and turn up next season. 

 As Mr. Roebuck says there are not many records for the variety 

 in Britain, it may be new to V.C. 69. 1 have heard that a 

 similar slug was seen at Blawith, near Coniston Lake, last year. 

 — S. L. Petty, Ulverston, i8th August 1903. 



^^^ 



LEPIDOPTERA. 

 Laphygma eA^/^ua. Referring to the record o^ L. exigua in 

 Yorkshire (Nat., November 1903, p. 424) a singular coincidence, 

 occurs in a simultaneous record of the species in another journal 

 (Ents. Mo. Mag., November 1903, p. 281). There we read that' 

 four specimens were taken by Mr. W. C. Boyd, also 'at light' 

 near Chelmsford on 23rd September, that is the day following 

 Mr. Fieldhouse's captures. Mr. Boyd states that although he 

 has worked ' light' for about twice a week in September for ten 

 years in that locality the insect had never turned up before. 

 These two records, Lthink, point strongly to an immigration of 

 the species over the country this year : in the first place, because 

 out of the twelve specimens captured only one was in really fine 

 condition, all the others being more or less worn ; and in the 

 next place because I cannot hear of a single example having- 

 been seen in any of its known breeding haunts on the south 

 coast, although in its hitherto most prolific locality (in South 

 Devon), and where I have taken it myself in diff"erent seasons, 

 my friend and often collecting colleague, Mr. J. Jager, worked 

 almost specially for it during nearly the whole of the past 



Naturalist, 



