THE WHITE- FLIES OF JAPAN* 



S. I. KUWANA 



IMPERIAL AGRICULTURAL EXPERIMENT STATION 



NISHIGAHARA, TOKYO, JAPAN 



In this paper are listed eleven species of Japanese Aleyrodidae which have 

 been collected by the writer and others, during the last few years. Three of 

 these species were previously recorded and eight are new to science and described 

 herewith. 



The writer's thanks are due to Prof. A. L. Quaintance, Bureau of Entomology, 

 United States Department of Agriculture, Washington, D. C, for his courtesy 

 in examining the specimens, and for his assistance in the determinations. 



Aleyrodes citri Riley and Howard 



Aleyrodes citri Riley-Howard, Insect Life, Vol. V, p. 219, 1893. 



Aleyrodes citri Kuwana, The Insect World, Vol. XIV, No. 1, pp. 13-15, 191O. 



On orange, in Nagasaki, collected by the writer in 1907, for the first time in 

 this country. Since then it has been found by him on ivy in Tokyo, Kanagawa, 

 Okayama, Yehime and Miye. It is not a serious pest in Japan. 



Aleyrodes giffardi Kotinsky 



Aleyrodes giffardi Kotinsky, Bui. 2, Div. Ent. Board Comni. Agr. and Fores- 

 try, Hawaii, p. 9i, 1907. 



Aleyrodes giffardi Okada, The Insect World, Vol. XIII, No. 11, pp. 7-10, 

 1909. 



Aleyrodes giffardi Kuwana, Engei no Tomo, Vol. V, No. 12, pp. 52-54, 1909- 



Aleyrodes giffardi Kuwana, The Insect World, Vol. XIV, No. 2, pp. 8-9, 1910. 



On orange, in Shizuoka, collected by Mr. Okada and the writer, during the 

 summer of 1908 for the first time in this country. It is a very serious pest of 

 orange in some sections of Shizuoka, but it is not found in any other part of 

 Japan as yet. 



Aleyrodes shizuokensis n. sp. 



(Figure 207, A-E) 



Pupa case — Size about 0.99 by 0.70 mm. Broadly elliptical or subcircular. 

 Colorless. No lateral fringe nor wax covering of any kind. Segmentation of 

 abdominal region distinct. Margin crenate, separated from rest of case, forming 

 a narrow border all around. 



*This article is an exceedingly important one for California interests. It is the 

 lirst extended study of the White Flies of Japan. It is of especial importance, on 

 account of our very extensive importations of nursery stock from that country to 

 know just what white fiies we are likely to receive sooner or later. The fact that the 

 Citrus White Fly is generally distributed there is of especial moment to us, and 

 means that our vigilance in connection with Japanese shipments must be redoubled. 



