FAMILY C1-:RAMBVCIDAE 



299 



(I think it only infests this 

 tree exceptionally), jhin- 

 gham, dhak, Bombax hcpta- 

 phyllum, semul, Spondias 

 niangifera (taken by myself 

 in the Tista Valley forests 

 in 1896-97), and mango. 



Protection and Remedies. 



Observations would 

 tend to show that this in- 

 sect is both hardy and has 

 great powers of self-repro- 

 duction. It is therefore one 

 which may cause consider- 

 able trouble in the future. 

 Several of the trees it in- 

 fests are for a variety of 

 purposes of importance to 

 the forester, and therefore, 

 whenever possible, practical 

 protective measures should 

 be enforced against it. 

 The most important are : 



(i) Removal of dying 

 and sickly trees from the 

 forest. 



(ii) Bark all fellings, 

 whether poles in thinnings 

 or mature timber, as soon 

 as made. 



(iii) If it is not pos- 

 sible to bark the felled 

 material, whether poles or 

 logs or unbarked fuel- 

 wood, it should be re- 

 moved from the neighbour- 

 hood of the forests by the 

 end of April. 



Predaceous Insect. 

 Colydiid, sp.— The 

 grub of this beetle is pre- 

 daceous upon the larva. 



of Ploccedenis ubcsiis. 



Fig. 207. — Colydiid ynib at X') on stem of Biitea 



, The 

 iwaliks, 



pupa, and immature beetle 1''^"''^'^''' badl infested by Ploccederns obesus. The 

 r\^, , , ^rub was taken from a cocoon of this beetle. Si 



N. India. 



