SOME NEW SCALE INSECTS OK JAPAN. 



cannateci ; posteriorly curved upwards, with rounded apex. Denuded 

 female after treatment with potash, ovate, slightly narrowed in front. 

 Gland-tracts corresponding in position to external cereous plates ; glandi- 

 ferous spines comparatively short and bluntly pointed ; dermis between 

 gland-tracts with spiny hairs and simple spinnerets. Antennae spinous, 

 three-segmented ; the third segment longest, much longer than first and 

 second segments taken together ; apical spine long, pointed. Eyes 

 prominent, not close to antennae, tuberculate. Mentum biarticulate, slender, 

 apical segment more than three times longer than the basal. Legs 

 subequal, long and rather stout, strongly spinous ; tibio-tarsal segment 

 either straight or slightly curved ; claw large, sharp, with a pair of slender 

 basal spines. Anal orifice with six short spiny hairs. 



Length of body 1.6 mm., width about 1.3 mm. 



Length of marsupium about 1.7 mm., width about 1.3 mm. 



Larva : — Ovate after treatment with potash. Antennae of three 

 segments, spinous, the third segment longest, with a long apical spine. 

 Legs about the same as those of adult female. 



Habitat : — -On the root of Ardisia japouica Bl. (Yabu-köji) ; Yoko- 

 hama. Collected by Mr. T. Yamamura, Feb. 19 14. 



Note : — This new Orthezinae is closely allied to the genus Orthsziola, 

 though quite distinct from it. In this species the antennae are constantly 

 three-segmented and the eyes are widely separated from the basal segment 

 of antennae, while in Ortheziola the antennae are four-segmented and the 

 eyes are situated very close to the basal segment. 



In conclusion the writer begs to thank Prof. E. E. Green for his 

 courtesy in examining the specimens and for the assistance given him in 

 the determination. 



