ACIDAIJID.-E—TIMANDRA. 77 



Larva slender ; head rounded, dull pale grey ; skin 

 apparently smooth, but under a lens found to be covered 

 with a multitude of transverse wrinkles which show as 

 minute brownish-grej- lines ; spiracular lines raised above 

 the surface, their margins extremely irregular; sides of the 

 anterior legs wrinkled ; general colour whitish-ochreous, with 

 a faint joink or purplish tinge ; a broad grey dorsal shade 

 enclosing a white spot, on each segment ; subdorsal lines 

 faintly grey; spiracular lines broad, slightly paler than the 

 ground colour ; spiracles black, conspicuous ; on the fifth to 

 the ninth segments a black dot is placed obliquely beneath 

 them ; undersurface pale bluish-grey, very slightly darker 

 than the ground colour; along its middle is an inconspicuous 

 white stripe. (C. Fenn.) 



August till June, hybernating when one-third grown, but 

 recommencing to feed very early, even in February if the 

 weather is mild ; but in very warm localities a portion of the 

 bi'ood of larva3 sometimes feeds up very rapidly in August. 

 The produce from this brood doubtless feeds from September 

 or October till June. On knotgrass, chickweed, birds-foot 

 trefoil, and hop-trefoil ; but these are probably only substitute 

 plants on which larva? reared from the egg are induced to 

 feed ; the larva does not seem to have been observed here, at 

 large ; it doubtless feeds on some low-growing marsh plants. 

 Hoffmann says that it is regularl}^ double brooded on the 

 Continent, and that it feeds on Staticc liinonium, and on 

 Convohmlus scpium. 



Pupa apparently undescrilied. In a loose cocoon on the 

 ground. 



The moth hides during the day among stift' strong grasses 

 and other coarse herbage, and is not readily induced at that 

 time to fly ; or if disturbed hastily conceals itself in a similar 

 retreat. Its natural flight commences at about half an hour 

 after sunset, and continues for an hour, after which time it 

 may easily be collected as it sits quietly on grass stems, by 



