146 BRITISH BUTTERFLIES. 



The butterfly is seen in July and August, flitting 

 about in sportive groups round oak trees, and occa- 

 jsionally descending within reach of the net. It also 

 affects other trees besides oaks, some thirty or forty at 

 a time having been seen gambolling about one limt 

 tree. It being so generally distributed, it will be need- 

 less to particularize its localities. 



THE GREEN HAIR-STREAK. 

 (Thecla Rubi.) (Plate XII. fig. 5.) 



THIS pretty little species is at once known from all 

 other English butterflies by the rich bright green colour 

 that overspreads its under surface. Above, the wings 

 are deep, warm brown. 



The caterpillar is green, spotted and striped with 

 white, and feeds on the bramble;, also on the broom, 

 and other plants of the same order. 



The butterfly appears first in May and June, and 

 again in August, it being double-brooded. It is found 

 flying about rough brambly hedges, and often settles 

 on the outer leaves of low trees about a dozen feet from 

 the ground. It seems to occur generally throughout 

 the country, and extends into the southern parts oi 

 Scotland. It has been found in many localities clow 

 to London. 



