Dec, igog] KUWANA : COCCID.^ OF JaPAN. 153 



very deep. Anal plates large, outer edge rounded ; three to four spines at the 

 apex and one at middle of the inner edge. Length 3-4 mm., width 2-3 mm. 



Egg. — Oval in form, pale yellow in color. Length about .25 mm. 



First Larval Stage. — Elongate in form. Antennae and legs well formed ; 

 mouth parts very large. Antenna 6-jointed; third joint the longest, second 

 joint the shortest; formula 3, 6, 5, 4, i, 2. Tibia and tarsus about equal in 

 length. Anal plates prominent, with one long spiny hair at their apices. 

 Length about .3 mm. 



Habitat. — Tokyo and Kanagawa, on Thca japonica L. ; collected 

 by the writer, May, 1905. 



5. Takahashia citricola, new species. (PI. VIII, Figs. 28-33.) 



Adult Female. — Semicircular in form ; orange in color, with dark marking 

 on the dorsum. At the completion of the ovisac the body is free from the 

 plant, resting on top of the sac as shown in the figure. Antennae and legs 

 well formed, but rather small and stout. Antenna 8-jointed, third joint the 

 longest, first joint broadest; formula 3, 2, (4, 8), i, 5, (6, 7); last few joints 

 with many long hairs. Legs subequal ; tibia longer than tarsus, almost twice 

 as long as the latter ; digitules of tibia long hairs, those of claw stout and 

 short ; claw stout and curved. Marginal spines simple. Stigmatic spines 

 three, the median one much longer than the others. Anal ring with eight 

 strong spine-like hairs. Anal plates large, outer angle rounded, a prominent 

 spine near the apex. Length about 4 mm. 



Habitat. — Kumamoto, Hukuoka and Wakayama, on Citrus. Col- 

 lected by the writer, July, 1907. 



This species is allied to Takahashia japonica Ckll., but differs in 

 having a short ovisac and a small round body. 



6. Pulvinaria camellicola, Sig. 



Tokyo, on Eurya ochnacccc Sgysz. It is common on this plant 

 about Tokyo City, and very destructive, but I do not find it on 

 Thca {Camellia) japonica L. It differs somewhat from the Euro- 

 pean form, especially in the shape of the ovisac. 



7. Ceroplates rubens Mask. 



Nagasaki, on Diospyros kaki L. f. and orange, collected by the 

 writer in the summer of 1907. Although long since recorded from 

 Japan, this is the first time this species has been found by the writer. 

 It is probably introduced from some tropical country. 



8. Lecanium (Saissetia) nigrum Nietn. 



Liu-Kiu Island; collected by Mr. T. Taira from an unknown host, 

 Liu-Kiu Agricultural Experiment Station, 1907. This is the first 

 time this species has been found in Japan. 



