A LIST OF THE APHIDIDAE OF JAPAN, WITH DESCRIPTION 
389 
Ina America Aphis spiraeae Ost. 0 attacks Spiraea salicifolia. 
27. Aphis odorikonis n. sp. 
Winged viviparous female — Body dark green, oblong ; antennae greenish 
yellow (except 2 basal joints), somewhat shorter than the body, the 3rd joint 
on the outer side with a few sensoria in a single row, shorter than the 6th, 
anterhinarial nearly 2 \ times as long as the postrhinarial ; wings hyaline, the 
base and costa with a yellowish shade, veins and stigma grayish, 2nd furcal 
near the apex of the first; abdomen roundish, penultimate segment with a 
small tubercle on each side; cornicles long, at the base broader; cauda short, 
at the apex rounded, somewhat longer than broad ; legs greenish yellow, 
tibiae at the apices, tarsi, as well as the posterior femora, infuscated. 
Length of body 1.5 mm; exp. tegm. 5.4 mm.; antennae [.2 mm.; cor- 
nicles 0.25 mm. 
Apterous viviparous female — Body dark green, on both ends much nar- 
rower, broadly fusiform; antennae distinctly shorter than the body, greenish 
yellow, the basal joint being green, the 3rd and 6th subequal, anterhinarial 
nearly 2 \ times as long as the postrhinarial ; abdomen oval, cornicles long, at 
the base somewhat broader, reaching to the genital segment ; cauda short, 
somewhat longer than broad ; legs greenish yellow, tibiae at the apices, tarsi 
and femora, largely fuscous. 
Length of body 1.8 mm.; antennae 1.2 mm.; cornicles o. 1 2 mm. 
Hab. — Hokkaido (Sapporo). 
F. P. — Lamiiuu album. 
Norn. Jap. — Odoriko-abura. 
28. Aphis polygonacea sp. 
Winged viviparous female — Body dark green, oblong, in the middle 
much constricted ; antennae fulvous, scarsely shorter than the body, the first 
joint on the innerside with a small projection, the 3rd on .the outerside with 
1) O. W. Oestlund- Synopsis Aphid. Minnesota, p. 68 (1887), 
