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XX. On some Oriental Scolytide of economic importance, 
with Descriptions of five new Species. By WALTER 
F. H. BLANDFORD, M.A., F.Z.S. 
[Read November 2nd, 1898.] 
From time to time I have received for determination 
small consignments of Asiatic Scolytids, sent as being 
injurious to, or more generally associated with a diseased 
condition of, trees, &c., of economic value. 
Such material is usually difficult to deal with. Too 
often such a consignment contains but a few specimens, 
among which may be examples of species, either new or 
of a most obscure character. Rarely does one receive a 
good series of specimens in proper preservation. 
To discuss each sending separately is merely to multiply 
short papers and single descriptions, unfortunately all too 
common in economic entomology. In this paper I propose 
to deal with an accumulation of such consignments which 
have been in my hands for some time. The source of 
each, and the particulars furnished therewith, are first 
given, and the specimens sent are identified so far as 
possible. The species which I regard as new are 
afterwards described. 
N.W. Provinces. “In bark of dead Pinus eaxcelsa— 
Jaunsar and Deoban” (Ind. JMus.). 
The specimens sent with the above note belong to the 
genera Polygraphus and Pityogenes. I am uncertain 
whether one or two species of Polygraphus are represented ; 
as no Oriental species of the genus has been described, 
the form or forms sent are likely to be new. All the 
species are so closely allied, that it is useless to attempt 
any determination without an exhaustive study of good 
series of all available forms. The single example of 
Pityogenes is an example of a black species allied to P. chal- 
cographus and unknown to me; it is not P. scitws, Blandf. 
The material is, however, insufficient for a description. 
TRANS. ENT. SOC. LOND. 1898.—PART IV. (DEC.) 
