168 



THE YOUNG NATURALIST. 



Monday forenoon I boxed a fine specimen of Notodonta dictaoides off a 

 birch. I left Corrie in the afternoon with much regret, but with the hope 

 thai I may return in another year to spend my holidays, roaming on the 

 heather-clad hills and moors of this wild and beautiful island. 



Pollokshields, Glasgow. 



OBNOXIOUS AND INJURIOUS INSECTS. 



By JOSEPH CHAPPELL. 



(Continued from page 159. ) 



Prionus COriarius is one of the Longicornes or long-horned beetles. 

 It is a large insect, almost resembling leather. These insects are found on 

 bark of trees in woods, beneath which the females deposit their ova, by means 

 of a strong, corneous, and tubular ovipositor, capable of being protruded to 

 a considerable length. The larvae reside in the interior of willow on which 

 they feed ; they form a cocoon with pieces of gnawed wood, &c. The perfect 

 insect may be found on the trunks of trees during the day, it is usually met 

 with when flying heavily, towards evening. 



Aromia moschata (the Musk beetle). This species bears the appel- 

 lation on account of its sweet smell, which is more like otto of roses than 

 musk. It is often found on old willows, in which the larva feed on the solid 

 wood. The scent is so strong as to be readily noticed at some distance, and 

 is strongest in the female, which if put into a box or handkerchief will im- 

 part its aroma to them. 



Callidium violaceum feeds under the bark of fir trees in Berkshire, 

 making galleries. This insect was found very abundantly by the late Benja- 

 men Cooke. It was formerly very rare in this country, but it is getting more 

 common. 



C. alni. All the longicornes are wood feeders. This species is common 

 in some localities on dead twigs, in which they probably feed. 



C. variabile feeds in old trees in Sherwood Forest. Is a variable species. 



Hylotrupes bajulus is occasionally taken in the timber of houses, 

 where its larva has been known to do considerable damage, even penetrating 

 sheets of lead. It occurs near London. 



Asemum striatum feeds on fresh-cut pine stumps in Scotland. 

 Clytus arcuatus feeds on old rails, posts, &c, at Epping, Newcastle, 

 Cumberland, and Hertford. 



