JOURNAL, OF ENTOMOLOGY AND ZOOLOGY 6 



transverse ridfi^es; codal extremity with a small opening. 

 Length, 3.5 mm. ; width, 1.3 mm. 



Adult female — Elongate in form; i)ale yellow in color, after 

 treatment with KOH turned light pink. Derm with numerous 

 strorig sjiines and many fine slender hairs and a small circular 

 cells. Lateral margin of abdomen with a series of very strong 

 spines which are very much stronger than those on the derm. 

 Mouth ])arts small ; rostral setae short. Antennae short, com- 

 posed of six or seven segments; last few segments bear many 

 long hairs; formula of two examples given below: 



Six-segmented antenna? Ill, II, VI, I, (IV, V). 



Seven-segmented antennae IV, III, VII, II, I, VI, V. 



Legs stout ; tarsus slightly longer than tibia. Anal ring with 

 eight ])rominent hairs. Abdominal lobes normal ; each with one 

 long and two or more short spines. Length, 2.0 mm. ; width, 

 1.1 mm. 



Egg — Elliptical, lemon in color. Length, 0.3 mm. 



Hahitai — On Fistica parvigluma, Nishigahara, Tokyo. Col- 

 lected by C. Fukaya of this station, June, 1910. This new 

 species is closely allied to Friococcus insignis Newst. and also 

 E. greeni Newst., from which it may be distinguished by ar- 

 rangement of spines of abdominal segments. 



IV. Pulvinaria citricola n. sp. 

 (Plate II, Figs. 15-19) 

 Adult female — Oblong oval in form, moderately convex 

 above; pale olive in the color with yellowish dorsal line; shriv- 

 elling after gestation and flavus with dark irregular lines near 

 the margin. Ovisac snow white, rather long with two con- 

 spicuous dorsal ridges to form a deep median furrow. Antennas 

 composed of eight segments; segment III the longest and VII 

 the shortest; the last segment with many long hairs: formula, 

 ITT, IV, (II, VIII), (I, V), (VI, VII). Mouth parts small; 

 rostral setae short. Legs subequal, short and stout; tarsus one- 

 half the length of tibia; claw short and curved; digitules usual. 

 Marginal hairs simple but occasionally divided. Stigmatic 



