ZooL.— Vol. III.] KUWANA—COCCIDM OF JAPAN. 67 



in Hikosan; Thea jafonica in Akabane ; Rhododendron 

 indicum var. kmmfferi (Tsutsuji) ; R. indicum var. 

 macranthiim (Satsuki); Ilex latifolia (Taraya) ; Clethra 

 harhineros (Ryobu); and Thea sinensis (Cha) in Tokyo. 

 A. Craw, San Francisco, had previously recorded it on a 

 pgeony from Japan, 



This scale is one of the worst pests of tea and ornamental 

 plants. In many places the tea-plants were dying from the 

 effects of the pest. 



40. Aspidiotus perniciosus Comst. 



Aspidiotus perniciosus Comstock, Ent. Rept. U. S. Dept. Agric, 1880, p. 

 304. KuwANA, Cont. to Biol., The Hopkins Seaside Lab. of Leland 

 Stanford Jr. Univ., No. XXV, 1901, pp. 1-14. Sasaki, Annot. Zool. 

 Japan, Vol. Ill, 1901, pp. 165-173. 



This scale was recorded by the author from many locali- 

 ties on the three main islands of the Japanese Empire: 

 Kiushiu, Hondo and Hokkaido. On Kiushiu Island it was 

 found on an old native pear-tree (about fifty years old), 

 which was badly infested with the scale. The tree was 

 standing alone at the back of a farm house, with no possible 

 chance of its having come in contact with an infected tree. 

 On the same island, near Kokura, was a pear orchard about 

 five years old. The stock came from Tokyo, and was 

 badly infested with the scale. In the spring of 1899 the 

 owner dug up and burnt more than three hundred trees, 

 but it was too late then, for the scale had already spread 

 nearly all over the orchard. In Shiga-ken it was found on 

 pear, apple, and quince trees in the grounds of the Agricul- 

 tural Experiment Station. In Gifu-ken there are many small 

 orchards, in every one of which the scale was found. In 

 Tokyo it was found on pear-trees in the Mita Nursery and 

 other places, on pear-trees in Kawasaki, and in Yokohama 

 on pear-trees growing in a pot. In the northern part of 

 Hondo the scale was found in orchards in Angio, Sendai, 

 Morioka, Aomori, and Hirosaki; and in Hokkaido it was 

 found in the apple orchard of the Agricultural College, 

 Sapporo. Many of the trees were dying from the attack 



