173 



The situations where it is found are hedge-sides. 



The perfect insect appears in September. 



The caterpillar is marbled greyish and brown, with a 

 pale line on each side of the back edged above with darker; 

 the side line paler, interrupted, and edged with black. 



The date of the appearance of the caterpillar is in 

 June and July. 



It feeds on the ash. 



The chrysalis is found at the roots of trees below the 

 earth. 



TETHEA SUBTUSA. 



OLIVE MOTH. 

 Plate LX. Figure 1. 



Localities for this species are York, Sutton-on-Derwent, 

 Kingsbury, Bristol, Lewes, Carlisle, Bowdon, Hudders- 

 field, Exeter, Worcester, Stowmarket, Burton-on-Trent, 

 Manchester, Cambridge, Halton, Birkenhead, Clapham, 

 and Hammersmith near London. 



The situations where it is found are woods. 



The perfect insect appears in July and August. 



The caterpillar is yellowish green, with a pale yellow 

 line along the back, and another of the same colour on 

 either side of it; the side line pale yellowish; the head 

 whitish green, the mouth black. 



The date of the appearance of the caterpillar is in 

 April and May. 



It feeds on the aspen and the poplar. 



