54 E - Takahashi. 



Wingless viviparous female 



Brownish yellow, somewhat with cottony secretions. Head dusky on the 

 dorsum. Antennae, anal plate and legs dusky. Body oval, soft, with a few 

 rather lung bristles on the dorsum. Head small, not divided, with about 3 pairs 

 of small circular wax-secreting arears ? on the dorsum. Eyes composed of 3 

 facets. Frontal tubercles absent. Antennae very short, 4 or 5-jointed, furnished 

 with a few short hairs: the last 2 joints each with a very small circular 

 sensorium : the relative length of joints about as follows: 1-10, 11-12, III-X, 

 IV-14, V-25. Rostrum large, reaching the middle coxae or a little beyond the 

 hind coxae. Abdomen furnished with a wax-plate on the side of each of the 

 3rd and 7th segments. 4 wax-plates arranged in a transverse row on the dorsum 

 of each of the 4th, 5th and (>th segments: these wax-plates rather large, 

 subcircular and a rather long bristle arises from each ; the 7th with a small 

 blunt tubercle on the side. Cornicles absent. Cauda not distinct. Anal plate 

 large, rounded, with many long bristles. Legs short: tibiae with a few short 

 hairs, on the apex provided with a few short spine-like setae; front tibiae 

 almost as stout as the antenna : hind tibiae somewhat longer than the antenna; 

 hind tarsi a little longer than the 3rd antennal joint. 



Length of body — about 2.0 mm. 



Host. — Michelia longifolia, attacking the stem and branch. 



Distribution. — Formosa : Taihoku. 



Numerous apterous females the antennae of which were 4- jointed were 

 observed on July 25, 1024. Numerous winged forms and their nymphs, as well 

 as a tew apterous forms with 5-jointed antennae, were observed on November 

 20, 1924. 



Hitherto unrecorded from Formosa. 



Tetraneura ? sp. 



(PI. IV, B, figs. 6-9) 



AVingless viviparous female 



Almost yellowish brown, with brownish dusky legs (colour notes from 

 specimens preserved in alcohol). Body stout, furnished with a few small, circular 

 or oval wax-plates, covered with moderately long bristles which are finer thau 

 those on the antenna. Head small. Eyes composed of 3 facets. Antennae 



