138 



margin of the fore wings near the tip, are the Isle of 

 Bute, Lyndhurst, New Forest, Sherwood Forest. 



The situations where it is found are heaths. 



The perfect insect appears in July; July 27. 



The caterpillar is brownish grey with a slight tinge of 

 greenish, and a paler line along the back and another 

 below it on each side, the latter having a row of blackish 

 square spots above it; the second segment dark brown. 



The date of the appearance of the caterpillar is in 

 March and April. 



It feeds on different low plants. 



The chrysalis is found beneath the surface. 



TRIPH/ENA ORBONA. 



LESSER YELLOW UNDERWING. 



Plate LIV. Figure 4. 



Localities for this common species are Nunburnholme, 

 York, Sutton-on-Derwent, Askham Bog, Isle of Wight, 

 Charmouth, Anstey, Brighton, Falmouth, Bowdon, Black 

 Park, Faversham, Barnstaple, and near London. 



The situations where it is found are gardens, woods, 

 lanes, and hedgerows. 



The perfect insect appears in August and September; 

 August 21, 23; September 16. 



The caterpillar is dull yellowish brown, mottled with 

 darker on the backhand with a conspicuous side-line of 

 a paler shade; the side spots inserted in large brownish 

 blots. 



The date of the appearance of the caterpillar is in 

 March and April. 



It feeds on various low plants. 



