Dec, 1909.] KUWANA : COCCID^ OF JaPAN. 161 



15. Mytilaspis pallida Green. 

 On Citrus sp. 



Other Localities. — Ceylon, Hawaii, mainland of Japan. 



16. Howardia biclavis Comst. 



On Celtis sinensis, Osteomclcs antliyllidifolia, Tliea japonica, 

 Photinia zvrightiaua. Papaia. Olea eiiropara. Hibiscus tiliaceus, Trachc- 

 lospcrmum jasviiiwides, " Chigi," Sidcroxylon ferrugineurn, Maba 

 buxifolia, Artocarpus intcgrifoliaf, Termiiialia catappa, Diospyros 

 kaki, Sys;ygiut)i cleycrcefolinm, " Komaiki," Lagerstnrniia iiidica, 

 Sidcroxylon sp., Punica granatum. 



Other Localities. — United States, West Indies, Tahiti, Ceylon 

 Hawaii, Mauritius, Europe. 



Although this species has been recorded from Japan and else- 

 where, the writer has not as yet seen it in his native country. 



The following species are here formally described as new : 



17. Ripersia agasawarensis, new species. (PI. X. Figs. 1-3.) 



Adult Female. — Elongate oval in form, flat ; pinkish purple in color. 



Antennae and legs well formed, but small. Antenna 7-jointed ; joint seven 



the longest; formula 7, 2, (6, i), 4, 5, 3; each joint with a few hairs. Legs 



subequal ; tibia almost twice as long as the length of tarsus ; digitules of tarsus 



fine hairs, those of claw stout and short ; claw slender and curved. Anal 

 lobes with two conical spines and about three long hairs. Anal ring with 

 six long hairs. Length about 4 mm., width aliout 2 mm. 



On Miscanthus sp. 



This species is allied to Ripersia japonica Kuw., but differs in 

 having two strong conical spines on the anal lobes and in the shape 

 of the antennae. 



18. Dactylopius (Pseudococcus) boninsis, new species. (PL X. Figs. 4-5.) 

 Adult Female. — Elongate oval ; color reddish gray, covered with heavy 



white powder ; abdominal segments distinct. Antenn.-e and legs large, well 

 formed. Antenna 7- or 8-jointed, usually the latter; in this case, the eighth 

 joint is the longest and the fourth the shortest, the rest of nearly equal 

 length; formula 8, 2, 3, i, (6, 7), 5, 4- Legs stout and longer than antennse. 

 Three pairs subequal, but the first pair is much smaller than the others ; with 

 rather fine hairs ; tibia more than twice the length of the tarsus ; digitules of 

 tarsus fine hairs, those of claw spiny ; claw large, curved. Anal lobes normal, 

 each with two strong spines and many long fine hairs surrounded with small 

 spinnerets. Anal ring small, with six hairs. Dermis with minute hairs and 

 small circular spinnerets. Length about 4.5 mm., width about 2.5 mm. 



On sugar cane. 



