4 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



indentation not well defined, with three stont hairs of which 

 the median long with two short. Anal cleft shallow. Trian- 

 gular plates large ; the inner edge the longest, base almost equal 

 with outer edge, apex with several strong hairs. 



Length about 4 mm. ; width, 2.5 mm. ; ovisac about 4-7 mm. ; 

 body with ovisac about 9 mm. 



Egg — Oblong, white. Length about 0.28 mm. ; width about 

 0.17 mm. 



First larval stage — Oval in form, pale in color. Length about 

 0.38 mm. ; width, 0.24 mm. 



Habitat — On citrus in Okayama, Shizuoka and on Persimmon 

 (Diospyros kaki), Hibiscus syriacus, citrus and other plants in 

 Tokyo. One generation a year and very injurious to citrus in 

 Shizuoka and Okayama. It is closely allied to Pulvinaria 

 cellulosa Green. 



V. Pulvinaria pliotinicv. n. sp. 



(Plate II, Mgs. 20-24) 



Adult female — Elliptical in form, convex; grayish black with 

 yellowish-brown marking on the dorsal line; more or less cov- 

 ered with white cottony secretion. Ovisac white, rather firm 

 in texture, long, two well-marked longitudinal ridges with many 

 cross ridges. Antenna? with eight segments; usually segment 

 III the longest, sometimes III and IV are almost eciual in 

 length; formula of two examples given below: 



III, IV, II, (V, VIII), I, VI, VII. 

 Ill, IV, (II, VIII), (V, I), Yl, VII. 



Mouth parts well formed, rostral setae very short. Legs 

 stout, short and subequal with few hairs ; coxa very large, femur 

 longer than tarsus; tarsus slightly longer than one-half length 

 of tibia ; claw large, curved ; digitules normal. Marginal hairs 

 short and simple. Stigmatic indentation shallow with three 

 strong spines, of which the median one very long while other 

 two shorter than the marginal hairs. Derm crowded with many 

 round cells. Triangular plates broad; base about equal with 



