66 



FOREST ENTOMOLOGY. 



but disappeared as the result of annually shaking them into paraffin. 



I can fully endorse this, not only from adopting the same method, 

 but also on account of frequent pleasant per- 

 sonal inspections of Lymm Sewage Farm along 

 with Mr Mort. 



RHYNCHOPHORA. 



This section embraces a very large series of 

 insects, both to the systematic student and the 

 arboriculturist. As, however, the main distin- 

 guishing generic characters are given, it would 

 be superfluous to give too many detailed sec- 

 tional characters. In a general way (exclusive 

 of the Scolytida?) they may be characterised as 

 " snouted " weevils. Many of them are easily 

 reared from the larval stage, but it would be 

 well for the enthusiastic student to collect this 

 class of insects from palings, trunks of trees, stone Avails, &c, as by 

 so doing he would not only gain a knowledge of the section, but 

 many important points bearing on the life-history of arboreal species 

 could be ascertained. 



The family Curculionidse contain certain weevils which are either 

 injurious or otherwise interesting as forest insects, perhaps more 

 especially those which cut and roll leaves in a peculiar manner, either 

 for the benefit of the larva? or the perfect insects. 



To the systematic student of Coleoptera this is, comparatively 

 speaking, a very large family, and many species may be beaten from 

 different deciduous trees, but the student of forest insects may confine 

 his attention to the leaf-cutting and leaf-rolling species. With a 

 view, therefore, not to overload the student in the details of classifica- 

 tion, it is intended to give as few systematic characters as possible. 



Fig. 64. Leaf of balsam 

 poplar injured by larva; 

 of willow beetle (re- 

 duced). 



Attelabus curculionides (Linn.) 



This leaf-rolling beetle is very plentiful in some parts of the 

 country. I have found it in Delamere Forest, Cheshire, at Newball 

 in Lincolnshire, and also in the southern side of the county of North- 

 umberland. As regards the date of appearance, I found it, together 



