Dr. G. B. Longstaff's Bionomic Notes on BuUerJlies. 649 



Mortehoe, 14 June, 1906. A specimen seen to settle 16 

 times ; always with wings up and across the sun ; on 

 12 occasions with a list away from the sun. 



Braunton Burrows, 10 Sept., 1907. C. 'pamphilus (the 

 only one seen that year) settled across the sun, with 

 head to the wind, and a list away from the sun. 



Morte Point, 5 September, 1908. G. pamphilus rather 

 common at one spot; the wind was so strong as to 

 compel them to keep their heads to it regardless of 

 the sun. A specimen was seen to list three times to 

 the right, slightly, and once to the left, strongly. 



Satyrus semele, Linn. 



The behaviour of this butterfly may be compared with 

 that of the last-named. 



Mortehoe, 20 July, 1906. A number of S. semele observed 

 to settle. All put their wings up ; two oriented with 

 tail to sun ; one faced the sun ; 24 placed themselves 

 across the sun, of these one was noted as listing about 

 30° towards the sun, but eight listed away from the 

 sun, only one however to an extreme degree. 



Same place and day. Three S. semele put into a large 

 glass-covered box. Observed the same afternoon, at 

 6 p.m., in sunlight ; all three were sitting across the 

 sun and listed away from it 35°, 45°, and 55° 

 respectively. 



Mortehoe, 31 July, 1906. Several semele noted, settled 

 across, and tilted a little away from the sun. 



Mortehoe, 22 August, 1907. Three semele observed at 

 rest, all across the sun and listed away from it 30°, 

 40°, and 25° respectively. 



Lundy Island, 27 August, 1907. A semele listed away 

 from the sun about 50°. 



Here I may insert an observation made by Mr. E. G. 

 Waddilove at Bournemouth in the autumn of 1906 : — 



"A grayling settled on a patch of bare black peat- 

 earth, shut up its wings vertically and crawled at 

 once some two yards to the edge of the patch to 

 where some fir-needles, a cone or two, and a few 

 brittle twigs were lying, and then becoming stationary 

 threw itself over at an angle of some 45° square to 



