LARENTID.E—COREML I. 1 73 



sharply marked. 3Ir. S. J. Capper possesses a specimen of 

 which t!ie ground colour is nearly white. There is a curious 

 tendency to variation in form and size in this species, some 

 of those fi-om the Yorkshire hills, the females particularly, 

 having the wings hroader and more rounded ; whilf those 

 obtained on the high hills of Devon are of decidedly greater 

 expanse. 



On the wing from the end of April till June or even July, 

 and in a more partial second generation in August and 

 September. 



L.\RVA. — Head rather small, semiporreoted, not uutclied 

 on the crown, set with a few hairs, semitranspareut pale 

 umber-brown, spotted with dark umber-brown ; body of 

 uniform thickness throughout, without humps or warts, but 

 set with scattered hairs, and having a rather rejnarkably 

 conspicuous tuberculated double skinfold along each side 

 below the spiracles ; colour umber-brown, with four narrow 

 approximate parallel whitish stripes extending the entire 

 length of the back ; on each side below the spiracles, and 

 comprising the skinfold already noticed, is a broad pale 

 somewhat Uesh-coloured stripe ; the ventral surface is rather 

 pale along the middle, but darker on the side where it 

 touches the pale lateral stripe ; it also exhibits traces of four 

 pai-allel narrow stripes of which the inner two are very 

 obscure ; legs and prolegs similar in colour to the darker 

 parts of the body. (E. Newman.) The liev. J. Hellins 

 says that it is a delicate grey larva with brown dorsal, sub- 

 dorsal and spiracular lines, and eight pairs of brown sub- 

 dorsal S|)ots. ;Mr. Buckler's figures re]ireseut in some 

 degree this latter variety. 



June, July, and a partial second generation in Septendjer 

 and October ; on di'liiiin rcni/ii, G. saxnfile, and doubtless 

 other species of bedstraw ; also in confinement on ^Is^n ,■//[((, 

 odoriifii : feeding at night, remaining during the day upon 

 its food-plant tightly attached by its prolegs, thence raised at 



