Aphididae of Poruiosa. — I. 29 



Subtribe Pentalonini . 



(1) Stiginatic vein strongly curved Fvllwwayella litX Qu^r. 



Stigmatic vein fused with the upper brancli of the 3rd oblique, ... 

 forming a closed cell Pentalonia Coq. 



Fullawayelki violae Pergande. 



Rhopalosiphum violae, Pergande, Canad. Ent. xxxii, p. 29(1900); 

 Sanborn, Kansas Univ. Sc. Hull, iii. No. 1, p. 64(1904); Essig, Pum. 

 •Tl. Ent. vol. i, p. 4 (1900): Davidson, Jl. Econ. Ent. ii, p. 303 (1909) 

 and ibid, iii, p. i>77 (1910): Swain, Univ. Calif. Pub. Ent. iii, No. 1, 

 p. 86 (1919). 



Neotoxoptera violae. Theobald, P>ull. Ent. Research, vi, pt. ii, p. 

 131 (1915). 



FvMawayella violae, Baker, Bull. Ent. Research, x, pt. 1. p. 46 

 (1919). 



Host. — Viola sp. 



Distribution. — Formosa (Taihoku). 



North America; Africa (Theobald). 

 Hitherto unrecorded from Japan. 



A few wingless viviparous females have been collected bj' the 

 author. 



In my opinion Phorodon violae Theobald from Africa (lUill. Ent. 

 Research, p. 68, 1920) is closely related to this species. 



Fullawayella formosanus n. sp. (PL. iii, 2, Figs. 1-5). 

 Winged viviparous female. 

 Described from a specimen preserved in alcohol. 

 Yellowish brown. Antennae, legs, cornicles and cauda pale 

 lirown. Wings along the veins broadly clouded with fuscous, veins 

 and stignui brown. 



Body oblong, with a few short hairs. Froutal tubercles con- 

 spicuous, the inner sides prominently converging. Antennae with a 



