NOTES 27 



Pisidium casertanwn. — A few small specimens from hill-streams 

 on Ulva, identified by Mr Stelfox, 



Pisidiicvi 7iitidum. — Small empty shells were found in abundance 

 among vegetable debris at the edge of Loch Poit-na-h-I (" Pot-I "), 

 a small tarn on the Ross of Mull opposite lona, surrounded by 

 granite rocks and containing brown peaty water. Mr Stelfox 

 observes that the shells are very fragile and depauperate. 



Breeding of the Painted Lady Butterfly in Arran. — My 



neighbour, Dr T. V. Campbell, when staying at Blackwaterfoot in 

 the south-west of Arran last August, found quite a number of the 

 larvae of Pyranieis cardui feeding on thistles by the side of a field 

 there. Those he brought home — over a dozen — pupated in due 

 course, and the butterflies, of which he kindly gave me a pair, 

 emerged in the latter days of September and the beginning of 

 October. — -William Evans, Edinburgh. 



Breeding of Red Admiral Butterfly in Bute. — During the 

 last week of September 1921, I found the larvse of Vanessa atalanta 

 in great numbers in the vicinity of the foreshore at Craigmore, 

 Bute. On one small clump of nettles, five larvae were in view at 

 one time, and eighteen were collected from the clump after a 

 careful search. On many other patches the larvae were found 

 feeding. The imago was common on the flowers of Veronica at 

 the same time. — Oliver H. Wild. 



Mallophaga (Bird-lice) on a Fulmar from the Forth. — 



On 27th April 1921, while examining a Fulmar Petrel from the 

 Firth of Forth, off North Berwick — where it was obtained the previous 

 day — I noticed a few Mallophaga crawling on its feathers. A 

 careful search yielded a dozen specimens referable to four species of 

 which two at least, namely, Esthiopterum vmtabile^ P. (^nigi'olimbatuvi, 

 G.), six specimens, and Ancistrofia gigas, P. (vage/li, F.), one 

 example, are additions to my list of locally collected Mallophaga 

 published in 191 2 in Proc. Roy. Physical Soc. A single Nirinus is 

 to all appearance N. lineolatus, N. [ornatus, Grube), a common 

 parasite of gulls ; while two other Philopterids may be the Docophoncs 

 occidetitalis of Kellogg, described from Pacific Fulmars. The 

 specific names within brackets are those adopted by Mr L. Harrison 

 in his recent list of the Mallophaga. 



I may add that E. mutahile and N. lineolatus — both in abundance 

 — and a few examples of three other genera were found on a Glaucous 

 Gull from the same locality in February 1915. The interchange of 



