Plant Insects) 3/, and Nippon Jumoku Gaichu Somokuroku (List of Tree In- 
sects) 4 /. The annual discovery of new pests and the addition of informa- 
tion regarding hosts, distribution, etc, of those pests already recorded 
has made those lists out of date. Publications in English of economic in- 
sects in Japan do not exist except as concerns those species which are com- 
mon to other countries. 
This report is a rearrangement, compilation, and cross references 
to all the known destructive insects listed in 10,000 books and scientific 
papers on this subject in Japanese literature. Many questionable determi- 
nations have been examined and corrected. Additions have been made to host 
lists and the distribution has been corrected where any additional inform- 
ation was available. This is the first time that such a correlation uf ma- 
terial for all Japan has been made. The author believes that a high degree 
of accuracy has been achieved. Reference specimens of some of the soft- 
bodied insects such as the Aphididae have not been prepared. While taxon- 
omy of these is in some cases questionable, they are listed without review, 
but English equivalents are not given. 
2 • Method of Presentation 
A catalogue of insects by orders and families is included in the 
first volume, along with a bibliographic list of 549 references, referred 
to by number in the species list. In subsequent volumes is the species 
list of 3,090 species, arranged systematically, with common English and 
Japanese names, hosts, and distribution, and bibliographical references. 
This list is cross indexed by listing the species alphabetically, followed 
by alphabetical arrangements by common English name and common Japanese 
name. Hosts are indexed by both scientific and common English names. 
In listing Japanese names priority is based on popularity of the 
name. Localized Japanese synonomy is given. As many species have no com- 
mon English equivalent, English names were created, based generally on the 
translation of the most common Japanese name, or on the host plant. Ap- 
proved English names are indicated by an asterisk to distinguish from those 
newly coined. 
English names of plant hosts are based on the Syst ema tic Lis t of 
E conomic Plants in Japan . 5/ 
2/ Hirano, I., List of Plant Insects . Yokkaichi Custom House, Jun 1937. 
4/ Watanabe, F., List of Tree Insect s. 2nd ed, Maruzen Company, Tokyo 
May 1939. 
5/ Takeda, H., Systematic List of.Ec o nomic Plants in Japan : Natural Re- 
sources Section Report No 121, Oct 1949.'” 
