GENERAL .HEADQUARTERS . 
SUPREME COMMANDER FOR THE ALLIED POWERS 
ECONOMIC AND SCIENTIFIC SECTION 
NATURAL RESOURCES DIVISION 
Preliminary Study No 71 
CATALOGUE OF INJURIOUS INSECTS IN JAPAN 
(Exclusive of Animal Parasites) 
Volume I 
Tokuichi Shiraki l/ 
INTRODUCTION 
1 • Purpose and Scope 
The purpose of this report can best be stated by quoting from an 
introductory paragraph by Mr C. P. Clausen 2/: "As the trade relations be- 
tween Japan" and the United States are so extensive it is quite essential 
that the species which occur there should be known in order to guard against 
their introduction, and to have some information regarding them if such in- 
troduction should occur." Mr Clausen 'wrote this in 1931 after a stay of 
several years in the Orient. His list included only the more important in- 
sects as he also gave a general summary of economic entomology in Japan and 
supplemented his list with material on Japanese control measures. 
Experience with imported injurious insects has proved that those 
of greatest economic importance when introduced into a new environment are 
not necessarily insects of major importance in their home environment. It 
is with this in mind that the author has put much effort in the attempt to 
make this list complete and cross indexed for ready use. More than two 
years of uninterrupted work have gone into the compilation. 
This list revises and brings up to date two systematic lists of 
destructive insects of Japan which have been accepted as the basis for tax- 
onomy of injurious insects. These are Shokubutsu Gaichu Mokuroku (List of 
1/ This report was compiled by Tokuichi Shiraki while serving as technical 
adviser in Agriculture since June 1948. 
2 / Clausen, C. P., Insects Injurious to Agriculture in Japan : United States 
Department of Agriculture-, Circular No 168, Aug 1931. 
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