LEPIDOPTERA. 



269 



grow at the same time ; but the centre one soon droops and finally 

 dies, in consequence of the centre of the shoot being entirely destroyed 



Fig. 254. " Leading " bud of Scots pine 

 injured by larva of Retinia turionana. 



255. " Leading sltont " of young Scots pine 

 injured by larva of Retinia buoliana. 



by the larva. Fig. 255 represents a photograph taken from a two- 

 year Scots pine plant in the nursery-line. The affected shoot, which 

 contains a single larva, is lying to the 

 right, and the normal shoots are very 

 vigorous, but they are not shown in 

 full length. In addition to injuries 

 being done in nursery-lines, we often 

 find young Scots pines and Austrian 

 pines from six to ten years of age 

 very much destroyed by this species. 

 As a rule the injured shoots die, 

 but a few exceptional cases are 

 found on young trees with dis- 

 torted or deformed leading shoots, 

 accruing from the damage done by 

 this insect. 



The moth (fig. 256) is from 18 to 22 mm. wing span. The fore 

 wings are of yellowish-red colour ; the red is brightened by silvery 



Fig. 256. Retinia buoliana. 

 a, male ; 6, female. 



