LAREX/JD.i-S—EL'/'/THEC/A. 147 



filled out ; colour pale pea-green or yellow-green ; basal line- 

 suggested by a small black patch on the dorsal margin, and 

 two black dots near the costa ; first line much angulated, 

 rather erect, faintly black, but forming a distinct black dot 

 on the costa and at every nervure and angle ; central line 

 only suggested by a few black atoms on nervures ; discal spot 

 imperceptible ; second line hardly beyond the middle of the 

 wing, forming a black spot or streak on the costa, another 

 on the subcostal nervure, and a black distinct > mark out- 

 side the discal cell, thence faint, showing only a black dot on 

 each ner^ure ; costa beyond the second line rather blackened 

 except at the origin of a paler green faintly indicated sub-> 

 terminal line; ciUa shining white, barred with smoky-black.. 

 Hind wings rather long, the hind margin rounded but a 

 little sinuous ; colour smoky-white, with a very faint indica- 

 tion of transverse darker bands arising from the dorsal 

 margin ; cilia smoky-white. Female very similar, but its 

 hind wings rather more distinctly clouded with transverse, 

 darker bands. 



Undersides of all the wings shining silvery greyish-white, 

 with two or three faint smoky-grey transverse bands. Body 

 and legs dusky white, tarsi blackened. 



Probably not variable, except a little in size, but the green 

 colour of the fore wings fadesvery rapidly during life to a 

 dirty vbIIow. Fortunately, if preserved while quite fresh it 

 is more constant. 



On 'the wing from April till June or even July, and as a 

 partial second generation in August. 



Laeva somewhat different in shape from those of all the 

 other Eiqnthccice, rather stout, and nearly cylindrical ; body, 

 when closely examined, very slightly hairy ; excessively 

 variable in colour ; yellowish-green with three reddish dorsal 

 line's, the middle one interrupted and sometimes enlarged 

 into' a chain of lozenge-shaped spots, the two side ones very j 

 indistinct'. . ' 



