Aphididae of Formosa. — I. 49 



Ecun. Entom. i, p. S&2 (1908); Theobald, Bull. Ent. Re^, iv, p. 323 

 (1914). :in<l Can. Ent. p. 169(1916); van der Qoot, Kenntis Holland. 

 Blattl. p. 210 (1915); Baker and Turner, Jour. Agr. Res., v, p. 955 

 (1916): Matsuniura, Jour. Coll. Agr. Sapporo, vii, p. 367 (1917); Essig 

 and Kuwana, Proc. Calif. Acad. Sc. 4th series, viii, p. 73(1918); Swain, 

 Univ. Calif. Pub. vol. iii, p. 120(1919); Matheson, Cornell Univ. Agr. 

 Expt. St. Memoirs, 24, pp. 683-720 (1919). 



Aphis mali Fabricius, Syst. Ent., p. 737; Kaltenbach, Mono. 

 Pflanz. i, p. 72 (1843); Buckton, Mon. Br. Aphid, ii, p. 44, pi. L 

 (1877): Thomas, Illinois St. Lab. Nat. Hist. Bull. 2, p. 11(1878); 

 Oestland, Geol. N'at. Hist. Survey, Minnesota, Bull. 1, p. 64 (1887). 



m^i^n- mmmmmmm^ no. s, p. 120 (^^je-^) 



Host. — Pines serotina; Glochidion spp. 

 Distribution. — Formosa (Taihoku); .Japan. 



Africa (Theobald); Europe; North America. 



Aphis smilacifoliae n. sp. (PL. iv, 2, figs. 1-12). 

 Aphis ffossypi! Essig et Kuw. (in part.) Proc. Calif. Acad. Sc. , 4th 

 series, vol. VHL No. 3, p. 69 (1918). 



Wingless viviparous female. 



Dark green. Eyes blackish brown. Antennae pale l>rown, with 

 the last 2 joints darker. Legs pale broAvn; apices of tibiae, and the 

 tarsi black. Cornicles dark green. Cauda black, with the base green. 

 Body oval, broade.st at the middle of the abdomen, furnished with a 

 few long fine hairs and densely covered with a wliite powder. 

 Eyes rather small. Frontal tubercles scarcely apparent. Antennae 

 with some long fine hairs; the 1st joint much broader than the 2nd, 

 the inner side convex; the .3rd without sensoria; the 4th slightly im- 

 bricated; the relative length of joints as follows: III — 40, IV — 33, V 

 — 32, VI — 56 (15 + 41). Rostrum short and stout, not reaching the 

 middle legs. Prothorax and the 1st and 7th abdominal segments on 



