ZooL.-Vou III.] KUWANA—COCCIDM OF JAPAN. 73 



(Kozo), (Some-Kusagi), ElcRagnus macro^hylla (Gumi), 

 Pierocarya rhoifolia ( Sawa-gurumi ) , Orixa jafonica 

 (Ko-Kusagi). 



The size, shape, and color of the female scales differ 

 more or less on different hosts, although these variations 

 are also due to the stage of the insects and to surrounding 

 conditions. The female scales on Prunus, mume and cherry- 

 tree are larger, flatly convex, and ash-gray with yellowish 

 exuviae; on the mulberry-trees and on Diospyros kaki \h&y 

 are almost equal in size to those on P. mume, and are the 

 same in general appearance, except that they are of a 

 lighter color; on other hosts they are more convex and 

 smaller. When the scale is young the exuviae are usually 

 reddish and the scale snowy white. Such differences may 

 be sufficient to base subspecies upon, but upon examin- 

 ing the female with the compound microscope, there is no 

 difference in the characters upon which the classification 

 is based. 



50. Diaspis crawii Ckll. 



Diaspis crawii Cockerell, Psyche, Vol. VIII, 1897, p. 190. Craw, Repf 

 Calif. St. Bd. Hortic, 1897-98, p. iii 



This species was found by the author on Elc^agnus um- 

 bellata, in Chikujo-gun, Kiushiu, Japan. It has been 

 recorded on a tree from China by Mr. A. Craw, San 

 Francisco. 



Genus Aulacaspis Ckll. 

 51. Aulacaspis rosae Bouche. 



Diaspis rosce Comstock, Ent. Rept. U. S. Dept. Agric, 1880, p. 312. 

 Maskell, Ent. Mon. Mag., Vol. XXXIII, 1897, p. 241. 



This species was found by the author on rose-bushes in 

 Yokohama, Gifu, and Aichi-ken. Previous to this A. 

 Koebele had found it on Elceagmis macrophylla and Trach- 

 elospermnm jasminoides, in Japan. 



