■86 LEPIDOJ'TEKA. 



On the wing from April till June, and a partial second 

 generation in August and September. 



Lakva rugose and rather stout with raised longitudinal 

 ridges and flattened interspaces ; head fully rounded, pale 

 yellowish-green, the mouth pale brown ; body bright green ; 

 dorsal line slender, darker or smoky green ; subdorsal line 

 white, placed on a raised longitudinal ridge ; half-way down 

 each side is another conspicuous raised ridge having upon it 

 a broader white or pale yellow stripe, irregular and rather ill- 

 defined ; undersurf'ace green, slightly ribbed transversely ; 

 legs and prolegs green, the latter swollen, the anal pair 

 especially so. Sluggish, hardly disposed to move in the day- 

 time, but if thoroughly roused jerking itself violently about. 



June and July, and a second, partial, generation in Sep- 

 tember and October; on juniper; but in confinement it will 

 eat cypress. 



Plta rather slender, the limb and antenna-covers closely 

 compact and shining, without sculpture; wing-cases also 

 shining and smooth, all dark green ; dorsal and aljdominal 

 segments smooth and glossy, hardly showing a trace of 

 pitting, but the segments ridged : paler green or yellowish- 

 green ; cremaster light brown, broad and conical, tipped with 

 fine bristles. 



Either spun up among the twigs of its food-plant, or in 

 the ground in an earthen cocoon. Both methods seem to be 

 adopted. 



In this condition through the winter. 



The moth hides during the day in the bushes of juniper, 

 but I have no personal knowledge of its habits. It seems to 

 be curiously sensitive to change of climate, pupas from 

 Scottish larva3 when brought into the South of England are 

 verj' apt to produce the moths in January or February 

 instead of April. It seems to have been discovered about the 

 jea,T ]8o7 in these Islands, larvie having been found on the 



