398 



FOREST ENTOMOLOGY. 



Name of tree or 

 shrub affected. 



Scots Pine 



Name of insect. 



Rhagium hifasciatum 

 Hylohms ahietis . 



Pissodes pini 



M notatus 

 Hi/lastes ater 



Hylurgus piniperda 



Pityoph thorv.s pubescens 



Tomicus sexdentatus 

 <\ (icrmiinatus. 



Pityogenes hidentatus . 



Lophyrus pini rufus ' 



II M M 



Fidonia piniaria . 

 Trachea piniperda 



Nature of injuries. 



Insects often found in 

 very dry dead stand- 

 ing trees. 

 Larva3 live in roots. The 

 beetle is very destruc- 

 tive to shoots of young 

 trees. 

 The larva3 live under bark, 

 and pupa3 form cocoons 

 in dead or back-going 

 young trees. 



Larvte burrow under bark 

 of stem close to roots 

 of young trees. 



Female beetle makes short 

 gallery under bark and 

 close to stem of young 

 trees. 



Female beetle burrows 

 under bark of newly 

 felled or back - going 

 trees. Larvae make ir- 

 regular galleries. The 

 beetle also bores out 

 the young shoots. 



Beetle burrows under 

 bark. Larvte make 

 short galleries. 



Female makes burrows 

 in stems of young 

 plants. 



Female said to burrow in 

 dead trees near London. 



Beetle burrows in bark. 

 Both beetle and larva3 

 make irregular gal- 

 leries. 



Male burrows under thin 

 bark and makes a cir- 

 cular chamber, whence 

 female beetles make 

 radiating galleries and 

 larvte irregular gal- 

 leries. 



Larvae feed on foliage 



Larvfe feed on foliage 



Larvae live on foliage 



Larvpe live on foliage 



Page. 



1 See also Appendix, page 421. 



