INSECT AND FUNGOID ENEMIES 181 



grey-brown. The caterpillar varies in colour from licjht 

 green to olive-green, with five white stripes upon its back, 

 the lowest ones on either side being yellowish. They 

 feed on twigs of Scots Pine. 



Fidonia Piniaria {Bordered White Moth). — A very 

 common moth in most parts of the country. It takes its 

 name from the markings on the wings of the male. The 

 centre of each wing is white and surrounded by a deep 

 border of dark brown. The wings of the female are 

 uniformly mid-brown. The caterpillar is sea-green, with 

 a white line upon its back and a yellow one on either side. 



Saw-Flies. 



Lophyrus Pini {Pine Saw-Fly). — The caterpillars are 

 most destructive, often defoliating whole plantations. 

 They are dirty green in colour with black spots ; about an 

 inch long. They may be shaken from young trees or 

 sprayed with Paris green. 



Lophyrus Bufus {the Fox-coloured Saw-Fly). — Although 

 not so common as the former insect, often does great 

 damage. The caterpillar is a ruddy-brown, and only 

 about I inch long. They do similar damage to that by 

 the larger caterpillar, and the same methods are used to 

 3xterminate them. 



Wood Wasps. 



Sirex Gigas {the Giant Wood Wasp). — The mature 

 insect is a particularly fine one to have in a collection. 

 The female is about 1| inches long, with a wing expanse 

 of 2| inches, and is armed vnth a long ovipositor. The 



