Part III.] Stebbikg and James : On the Barh-horing Beetles of Zhoh. 245 
A Further Note on the Chilgoza 
Bark-boring Beetles of Zhob . 
By,E. P. STEBBING, F.L.S,, F.Z.S., F.E.S., 
Embodying a Report by Captain E. H. S. James, l.A. 
Political Agent, Zhob. 
INTRODUCTION. 
As a result of an inspection of the Shinghar Chilgoza ' Pinus Gerar- 
diana) Forest in North Zhob in the summer of 1905 I described, in tnc 
Forest Bulletin series,* several beetle pests belonging to the family 
Scolytidae which were proving extremely destructive to the fine Shinghar 
Forest. In a subsequent Bulletin on the Chilgoza Forests of the Takht-i- 
Suleman f I was able to show that these pests were distributed throughout 
the Zhob Chilgoza areas and in the Forests of this species on the Takht-i- 
Suleman. 
The beetles responsible for the damage done were three species of 
Scolytidae. Polygraphus Trenchi, a new species described in Bulletin 
No. 3, an undetermined species of Phlceosinus, and Pityogenes coniferce 
Steb., a beetle which ranges east into the Western Himalayan Coniferous 
forests.]: It was shown that the first and second of these beetles were 
the most dangerous pests. After discussing the nature of the attack the 
question of the remedial measures to be adopted and the steps to be taken 
for the future protection of the forest was entered into in detail. § 
• A Note on the Chilgoza {Pinus Gerardiana) Bark-boring Beetles of Zhob, 
Baluchistan. Forest Bulletin No. 3, Government of India Press, Calcutta (1905). 
t On the Chilgoza Forests of Zhob and the Takht-i-Suleman. Forest Bulletin No. 7, 
Government of India Press, Calcutta (1906). 
X Departmenlal Notes on Insects which affect Forestry, Vol. I, p. 242, and Forest 
Bulletin, No. 3, p. 14. 
^ Op. sit.. No. 3, pages 19 — 22, 
