70 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



conforming usually to the color of the under side of the leaves to which it is 

 attached. The exuviae are in the center, and are covered with secretion. The 

 first skin is a pale straw color, .4 mm. in length; second skin orange-yellow, 

 .85 mm. long. 



Female. — The body of the mature female is subcircular, usually from i to 

 1.5 mm. long, and .75 mm. wide; color brown. Presents the following 

 characters: — 



There are four groups of spinnerets. The anterior laterals vary from 

 eleven to fourteen; the posterior laterals from seven to nine. There are 

 three pairs of well developed lobes; the median pair commonly notched on 

 the inner margin, sloping on the lateral margin, and very minutely serratu- 

 late; the second pair is smaller, and the third still smaller; the lateral margin 

 of the second and third pair of lobes is sloping, and very minutely serratu- 

 late. The margin of the ventral aspect of the segment is deeply incised 

 between the lobes. The parts of the body-wall forming the margin of these 

 incisions are very much thickened. The plates are distinct, not longer than 

 the lobes, fringed. There are two small ones between the median lobes; 

 those of each side are as follows: two between the first and second lobes, 

 three between second and third lobes, five or six laterad of the third lobe. 

 The spines are prominent. The first, second, and third spines are situated 

 near the lateral margin of the bases of the first, second, and third lobes; two 

 more spines laterad of the base of the third lobe. 



Scale of Male. — The scale of the male is circular, fiat, and the same color 

 as that of the female; about i. mm. in diameter. 



This species was found by the author on Quercus sp. 

 Angio, Saitama-ken. The scale is extremely inconspicu- 

 ous, as it lives beneath the epidermis on the under side of 

 the leaf. 



Type in the Entomological Collection of Leland Stanford 

 Jr. University, and co-types in the author's collection. 



46. Aspidiotus (Chrysomphalus) aurantii Mask. 



Aspidiotus ( Chrysomphalus) aurantii Maskell, Trans. & Proc. New Zealand 

 Inst., Vol. XI, 1878, p. 199. CocKERELL, BuU. No. 6, T. S., Div. Ent., 

 U. S. Dept. Agric, 1897, p. 29. 



This species was found by the author on a number of 

 cultivated plants, namely: orange-tree and Podocarpus 

 chinensis, in Wakayama-ken ; on Acacia and the tea-plant 

 in Yokohama; and on Podocar-pus chinensis in Tokyo. 

 Previous to this O. Takahashi, Tokyo, found it on Podo- 

 carpus in Japan. 



