346 LEPIDOPTERA. 



times pervades the greater portion of tlie area of all the 

 wings. 



On the wing from the end of June till August. 



Larva rounded, tapering to each extremity ; the sides 

 puckered and wrinkled ; head small, greenish ; the mouth 

 dark brown or black; body very glossy light green; dorsal 

 line darker gi-een ; spiracular line yellowish, inconspicuous, 

 usual spots slightly raised, each emitting a pale hair; anal 

 prolegs extended backwards. (Chas. Fenn.) 



!March till June or Jul}- — but probably from the preceding 

 autumn — on stinging nettle, rolling up the leaves ; very 

 active, wriggling backwards when disturbed. When young 

 the raised dots are dark green, but at each moult they become 

 paler until they agree accurately in colour with the skin. 



PtPA thi-ee-quarters of an inch long, moderately slender ; 

 head well developed ; thorax somewhat ridged ; wing-covers 

 long ; flexible rings of the abdomen well cut and gradually 

 tapered ; cremaster furnished with two curly-topped con- 

 verging spines crossing each other near their extremities. 

 Colour pitchy black ; abdominal segments dark ochreous- 

 brown ; not very glossy except on the head and thorax. 

 (W. Buckler.) 



Between two leaves of nettle, in a chamber lined with 

 silk. Not more than two or three weeks are passed in this 

 condition. 



This moth may be found, in the South of England, in 

 almost every bed of nettles, and is often so abundant as to 

 be a positive nuisance to a collector at dusk. In the day- 

 time it flutters out of the nettle-bed if one walks through, 

 but endeavours at once to conceal itself in a similar place, 

 antl often very close to the ground, also loves to hide in 

 dense herbage, such as clematis, when this grows close by. 

 Its peculiarly pearly appearance instantly catches the eye, 

 and to this species doubtless is due the common name — 



