292 



PROTECTION AGAINST IXSFXTS. 



Fig. 14(i. — Conxux lii/)ii/)(ri/a, Fiibr. 



n]nrdgo{9). i> Caterpillar, not fully grown. f Pupa. </ Cocoon and 



pupal exuviae (after emergence of the moth). 



same stem, sometimes 200 or more ; they attack not only 

 sickly trees, but thoroughly sound wood, and prefer solitary 

 trees in hedgerows, along forest borders, etc. They are very 

 voracious, and the wood which has been attacked is useless as 



