220 THE WOODLANDS. 



small black sawfly which lays its eggs upon roses in 

 gardens, from which the grubs are hatched in May. 

 These larvae devour the upper cuticle of the leaves, so 

 as to impart to them a blighted appearance. 1 They 

 are little, yellowish-green caterpillars, about half an 

 inch long, with an orange-coloured head. When these 

 have changed their skins several times and arrived 

 at their full size, they descend into the ground and 

 rest in little cells during the winter as pupae, making 

 their final appearance as perfect flies in the spring. 



SIREX. 



A most formidable-looking insect, mistaken by 

 some people for a " hornet," occasionally even finds 

 its way into our houses, the larvae being brought in 

 with the wood it inhabits. 3 The larva is like a large 

 maggot from an inch and a half to two inches in 



1 Selandria jtEthiops. 2 Sir ex gigcts. 



