155 



T^XIOCAMPA. OPIMA.. 

 Plate LVII. Figure 3. 



Localities for this species are York, Doncaster, by the 

 banks of the river Don, Stockton Forest, Langwith, 

 Taunton, Birkenhead, Bristol, Manchester. 



The situations where it is found are -wooded places. 



The perfect insect appears in February, March, and 

 April; February 212324, April 113; 



The caterpillar is brownish on the upper part, the 

 sides yellowish green, the line on the back, the one 

 below it, and the side line, paler. It is marked sub- 

 sequently with green stripes. 



The date of the appearance of the caterpillar is in June. 



It feeds on the poplar and the sallow. 



The chrysalis is enclosed in a loose cocoon of earth. 



TJENIOCAMPA POPULETI. 

 Plate LVII. Figure 4. 



Localities for this species are York, Sandal Beat near 

 Doncaster, Epping, Dunham Park, Shrewsbury, Man- 

 chester, Wimbledon, Preston, Bowdon, Congleton, Black 

 Park, Halton, Kingsbury, Bristol, Birkenhead, Lower 

 a Guiting, Cambridge, Bromsgrove, Crewe, Burton- on- 

 Trent, and near London. 



The situations where it is found are woods. 



The perfect insect appears in March and April; March 

 17, April 113. 



The caterpillar is pale whitish green, with a white line 

 along the back, and two narrower ones on the sides. , 



