26 MISC. PUBLICATION 344, U. S. DEPT. OF AGRICULTURE 
15.2; posterior laterals, range of one group 7 to 20, average 13.5; totals per 
specimen, range 25 to 84, average 58.” 
The distribution of theae, as reported 1 in the literature examined, 
includes only Japan and the United States, but study of material re- 
ceived for identification has added China, Chosen, England, and the 
Philippine Islands (the first and the last two quarantine-interception 
records). Within the United States the distribution is still restricted to 
a few isolated localities, but unfortunately the species appears to be 
rather widely scattered over the country. Specimens have been exam- 
ined from California (a quarantine interception at New York City), 
District of Columbia, Georgia, Maryland (at a plant introduction 
garden), Texas, and Virginia (perhaps only on newly imported host 
trees). In addition, there is an unverified record for the species from 
New York State by Felt (18, p. 202) and one from Missouri by 
Hollinger (28, p. 35), the latter record perhaps relating to specimens 
from newly imported plant host material. 
The assembled host records include a considerable variety of 
plants, mostly representing woody tree and shrub genera. In Japan 
the species is regarded as a definite pest, and the possibilities for the 
United States, if the species maintains its present foothold and 
eventually widens its distribution, are indicated from the information 
obtained several years ago as a result of a survey of the National 
Botanic Garden in W ashington, D. C. In the course of this ex- 
amination, plant-quarantine “inspectors found the species established 
out of doors on about 16 host species or varieties representing 9 
genera and 8 families. 
Published discussion furnishes the following records for this 
species, most of which will be found in the paper by vane (ai. 
p. 15) on Japanese Parlatoria or in that by Clausen (5. pl. 27s 
41, 77, 83) on injurious Japanese insects: On Acer (Aceraceae) from 
Japan, New York, and Missouri; on Aucuba (Cornaceae) from Dis- 
trict of Columbia; and on Citrus (Rutaceae), Cornus (Cornaceae), 
Diospyros (Ebenaceae), Elaeagnus (Elaeagnaceae), Evonymus (Cel- 
astreaceae), Hurya (Theaceae), Nee (Malvaceae), //ex (Aqui- 
foliaceae), Osmanthus (Oleaceae), Pea (Taxaceae), Poncirus 
(Rutaceae), Pyrus (apple and pear) (Rosaceae), Rosa (Rosaceae), 
Thea (Theaceae), Viburnum (Caprifoliaceae), and Vitis (Vitaceae) 
from rn 
During this study specimens placed as theae have been examined 
from the following hosts and localities: On several species of Acer 
(Aceraceae) from Chosen, District of Columbia, England, Japan, 
and Virginia; on Aucuba (Cornaceae) from California, China, Dis- 
trict of Columbia, Georgia, and Japan; on Celtis (Ulmaceae) from 
Texas; on Citrus (Rutaceae) from Japan; on Codiaeum (Euphor- 
biaceae) from Japan; on several species of Cornus (Cornaceae) from 
District of Columbia; on Crataegus (Rosaceae) from China; on 
Diospyros (Ebenaceae) from Japan and Maryland (at plant intro- 
10 An analysis of the figures for paragenitals in 53 specimens given by Kuwana (31, 
pp. 14-15) shows, for the anterior median cluster, occurrence in about 20 percent of the 
specimens with a range of 0 to 7 pores: for one cluster of the anterior laterals a range 
of 9 to 27, with an average of 16.7 pores ; for one cluster of the posterior laterals a range 
of 8 to 22, with an average of about 14.3 pores: totals. range 35 to 78, with average of 
62.5 pores. 
ee 
