218 The Irish Naturalist. [October, 



The few remarkable varieties of well-known species which 

 we found in our hurried expedition to the MacGillicuddy's 

 Reeks show that much more interesting results could be ex- 

 pected from a more systematic survey. We must confess that 

 we found the work of collecting while hill-climbing in the 

 soft Kerry air decidedly tiring, and much more work might 

 be done if a party of naturalists could arrange to camp out 

 on the shores of Eough Eagher, or at some point half-way 

 up the mountain. The higher and lower slopes could thus be 

 well searched with the least amount of fatigue, while nocturnal 

 insects could be studied. But we feel ourselves happy to have 

 *been able to work even so little at the fauna of this lovely 

 district, and the favourable weather we had enjoyed while 

 collecting was brought vividly to our remembrance, as we 

 drove twenty miles through pelting showers of rain to catch 

 the up express from Killarney. 



Science and Art Museum, Dublin. 



MIGRATORY BUTTEREUES IN SOUTH-WEST CORK. 



BY J. J. WOI.FK. 



On June 7th I saw Pyiamcis caidui for the first time this 

 year, and for a week or ten days after they were very numerous ; 

 they appeared to have arrived in thousands simultaneously 

 or nearly so. I saw no Colias cdusa in June, but my little 

 son told me he saw one. So I watched for their re- appearance. 

 The/*, cardui immigrants remained with us; after resting they 

 did not move inland, and others continue to arrive, for day 

 after day the same individuals returned to the same spots — 

 for instance one was in our yard for several successive morn- 

 ings, and when disturbed flew to the same slate on an adjacent 

 roof. 



In the first weeks of July larvae of P. cardui were abundant 

 all over the neighbourhood, wherever I went. On Sherkin 

 Island, which I visited on July 6th, they were very plentiful. 

 On the 17th most of the larvae had left the thistles, and on 

 the 1 9th I saw the last, three or four full fed: 



