TRIFlDyE. 391 



Pupa exceedingly smooth and shining, limb-cases hardly 

 perceptibly raised, but the wing-covers thickened and very 

 perceptibly fuller than the rest of the body, also so trans- 

 parent that the segments of the internal portions of the 

 segmental rings are visible through them ; palpi-covers pi'o- 

 jecting in front in a bent down knob. Colour bright chest- 

 nut, segments of the abdomen rather redder ; divisions well 

 marked, dark brown ; anal segment rather swollen, fully 

 rounded, terminating in a blunt point from which arise two 

 slender parallel spikes. In a brittle cocoon of earth at the 

 surface of the ground, or spun up in moss among stones or in 

 chinks of rock. 



The moth hides by day among rough stones, in crevices of 

 rocks, and under any convenient shelter in its savage haunts ; 

 but the male is readily induced, by hot sunshine, to fly 

 vigorously in the middle of the day, over rocks, rough shingle, 

 or the cUh'is of mines ; and to feast at flowers. At dusk 

 both sexes fly wildly and twist and wind about, among stones, 

 in such a manner as to render their capture difiicult enough. 

 This is, however, easily efiected at sugar, to which both sexes 

 come freely, as well as to blossoms of wood sage, ragwort, 

 and heather. It is also strongly attracted by light. Where 

 the ground is rocky, inland hills and mountains are frequented 

 by it equally with the coast. It has been taken in Kent 

 near Deal and Folkestone, though not commonly ; sometimes 

 plentifully at the Isle of Wight and at Portland ; more rarely 

 at Swanage in Dorset, Plymouth and Torquay in Devon, and 

 Whitsand Bay, Cornwall ; but there is no reason to suppose 

 it absent from any rocky portion of that coast. In Glouces- 

 tershire it is said to be rare, as also in Lancashire and York- 

 shire, though in 1895 it became so common in the hilly parts 

 of the last-named county as to stray into Mr. Porritt's garden, 

 a few miles out of Huddersfield. In Salop it is found com- 

 monly on some rough hills near Church Stretton ; and in 

 Westmoreland in similar localities near Keswick. Doubtless 

 if looked for it will be found in suitable places all over the 



