114 BKITISH BUTTEBFLIES AND MOTHS 



The larva, shaped like a woodlouse, is of a reddish- 

 brown colour, with two rows of short, oblique, black 

 stripes on the back. It feeds in June, on the oak. 



The perfect insect appears in July, and continues out 

 till August is well advanced. It has a tendency to fly 

 high up the trees, like the Purple Emperor, and may 

 often be observed in considerable numbers, just out of 

 reach. It has been observed to frequent ash trees. 



FAMILY IV. LYCLENUXE. 



THECLA RUSI. THE GKEEN HAIR-STREAK 

 BUTTERFLY. 



Abundant throughout the country, frequenting woods 

 and heaths. It is readily distinguished at a glance by 

 the green underside of the wings. 



The expansion of the wings is from 1 inch to 1J. 

 All the wings above are brown and spotless ; on the 

 underside they are green, and the hind- wings have a 

 central row of white dots. 



The larva is grass-green, with a white dorsal stripe, 

 and on each side a row of whitish spots and a white line 

 above the feet. It feeds in July, on bramble and papilio- 

 naceous plants. 



The perfect insect appears at the end of May and 

 beginning of June. When flying, from its dingy colour 

 it is difficult to follow with the eye, but directly it 

 settles and erects its wings over the back it shows the 

 green undersides, and is then easily observed. 



