FAMILY CERAMBYCIDAE 



299 



(I think it only infests this 

 tree exceptionally), jhin- 

 gham, dhak, Bombax hcpta- 

 phyllum, semul, Spondias 

 inangifera (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, Kl<;. 207. ColyiUiti -nib at X f>n stem of Hi/tea 



pupa, and immature beetle >** Jadl infested by Plocaderus dbesus The 

 rV/ 7 Rrub was taken from a co.uon ol this beetle. Siwaliks, 



ot Ploca'dcnis obesns. X. India. 



