54 K. Takahashi 



distal half not arranged in a single row; the 4tli witlioiit sensoria; tlie 5th somewhat 

 narrowed tow.ird the \>xse, witii tlie apical sensorinm large; the relative length of 

 joints about as follows : III -55, lV-23, V-20, VI- 48 (21 +27). Rostrum readiing 

 tjic middle coxae. Body without tubercles. Al)domen furnished with a few rather 

 short bristles. Cornicles very short, much wider tlian long. Cauda almost semicir- 

 culir wlien seen from above, much wider than long, broadly rounded, sliorter tlian 

 the hiud tarsi, with 4 rather long bristles. Wings somewhat clouded along tlie 

 veins; veins normiil; hiud wings with 2 almost purallel oblii[ues; booklets 2 or :>. Ix'gs 

 slender; tibiae provided witli many mudei'ately long setae; tarsi iiiibri' ated; Iiind tarsi 

 almost as long as the 4th anteunal joint. 



Length of body-about 1.0 mm. Auteuui about O.S mm. 



Eore wing-about 1.<S mm. 



Full-grown nymph of wiug(!d vivi[)arous female. 

 Head straiglit on the front, witli 8 short hairs on tlie dorsil surface. Frontal 

 tiilureles lacking. Eyes not large, with the ocular tubercles indistinct. Anteunao 

 (5-jointed, with a few short hairs; the 1st joint somewliat shorter tlian the 2nd; the 

 3rd scarcely imbricated, almost as stout as or slightly more slender than the tibia, 

 Incking sjnsoria; the 4t]i imbricated, somewhat expanded toward thi! apex, shorter 

 llian the l)asal two joints taken togetlier; tlie 5(h exiandcd toward (he apex, witii 

 an apical sensuritim of medium size; (lie relative length of joints as follows: 111 34, 

 JV-14, V-14, VI-3G (lo-f-*Jl). RosLrum reaching the middle coxae. Body without 

 lateral tubercles. Abdomen .witii a few short se'.ae arranged in a single row on (he 

 dorsum of the segments. Cornicles very short, eacli slightly more than a pore. 

 Cauda much wider than long, broadly rounded, with 4 bristles. Legs moderately 

 loug; tibiae provided with some moderately long setae; liiml tibiae much sliorter 

 than (he antaniui; tarsi slightly imbricated; hiud (arsi almost as long as tlie spur of 

 the last antennal joint, longer than tlie cauda. 



Length of body-about 1.1 mm. Antenna about 0.55 nun. 



Described from specimens collected in the galls on Artemisia capilhris on 

 January 23, 1923, at Taihoku. 



The winged viviparous females collected on Artemisia vuhjaris var. indica 

 on June 26, 192), near Taihoku and on November 10, 1922, at Shiuchikn, 

 Formosa, differ from those on Aiiemisia capillaris in having more seusoria on the 

 3rd and from 1-3 sensoria on tlie 4th aut(mnal joint. 



Many winged and wingless-, vivip.iroua females were coUejtea at YamasJiina, 



