4Q llYOKIIl TAKAHAsni: 



iuuor side. Autcu!i;c iuibric-utt-d, lacking liairs ; tlie 3i\l joint lac-kiug seusoria ; 

 the relative length of joints as follows : III— 35, IV —23. V— 24, VI-^9, 

 (13 — 36). Rosti-um reaching the hind cax». Prothorax and the 1st and 7th 

 abdominal st^giuouts with a siuall lateral tubercle. Coruicles cylindrical, 

 rather stout, shghtly broadened towards the base, not carved, imbricated, as 

 long as the 3rd autenual joint, about 1.5 times as long as the cauda. Cauda 

 a httlo longer than the hind taisi, with 3 pairs of very long lateral liristles. 

 T.egs long ami slender, provided with many mixlei'ately long set:e ; hind tarsi 

 almost as long as the base of the last anteunal joint. 



Length of body — about 1.5 mm. Antenna — 1.15 nun. 



Cornicle — 0.37 nun. 



Winged viviparous female. 



Blackisli given, lljdy lacking hairs. Antenna) imbricated, lacking hairs: 

 the 3rd joint provided with () — 8 rather large or medium sized circular sensoria 

 in one row over the whole length ; the 4th pr.:)vided with — 2 seusoria ; the 

 5th with tlu! usual apical sensorium ; the relative length of joints as follows : 

 111—39. IV— 32, V— 29, Al- oG ( 14 f 42). Rostrum reaching the hind caxrp. 

 Protliorax and the 1st and 7th abdominal segment? each with a small lateral 

 tubercle. Wings normal; hind wings with 2 parallel obliques; booklets 3. 

 Cornicles cylindrical, slightly l)roadeu(>d at the base, imbricated, .slightly shorter 

 than the 3rd anteunal joint, aliout 1.5 times iis long as the cauda. Cauda 

 longer than the hind tarsi. 



Length of b xly — 1.3 mm. Antenna — 1.2 mm. 



Cornicle — 0.22 nun. Fore wing- — 2.4 mm. 



Host. — ZJIiuiii, spp. 



Distribution. — Formosa : Taih'jkn, Kiirun, Shiuchiku. 



Aphis species. 



(I'l. IT, A, lig. 10). 



Wingless viviparous female. 

 Blackish green. .Vuteumc, eyes and cornicles black. Legs pile brown, 

 apices of femora and tiljiiP, and tarsi dusky. 



