A LIST ON THE APHIDIDAE OF JAPAN, WITH DESCRIPTION ^3 
56. Yamataphis oryzae n. sp. (PI. XVI, f. 6, a, b, c) 
Winged viviparous female — Body fuscous, with a purple shade, abdomen 
somewhat paler; antennae fuscous, with a few hairs, the 3rd joint at the base 
yellowish, somewhat shorter than the anterhinarial, with about 19 roundish 
sonseria all over the surface, nearly in two rows, the 4th with about 4, the 
rhinaria of the 5th not larger than the sensoria of the other joints, with a few 
minor ones about it, anterhinarial imbricated, about 9 times as long as the 
postrhinarial ; rostrum short, scarcely reaching beyond the 2nd coxae; wings 
hyaline, veins pale fulvous, stigma pale grayish, at the hind margin somewhat 
infuscated, media at the base obsolete, rarely rwice branched ; hind wings with 
2 narrow obliques, both reaching to the cubitus; abdomen oval, cornicles more 
than twice the length of the tarsi, somewhat curved, near the apices dilated, 
near the base imbricated, mouth large, funnel-shaped, somewhat infuscated; 
cauda somewhat longer than broad, conical, at the apex rounded ; legs mode- 
rately long, tibiae nearly as broad as the antennae, fulvous, femora, except 
the bases, tibiae at the apices and tarsi, fuscous. 
Length of body 1.6 mm.; exp. tegm. 5.4 mm.; antennae r.l mm.; cor- 
nicles 0.25 mm. 
Apterous viviparous female — Nearly allied to the winged viviparous 
female, but differs from it in the following points : 
Antennae shorter, nearly 1/2 the length of the body, with a few bristly 
hairs, anterhinarial nearly as long as the other joints combined, the 3rd and 
4th wanting sensoria; frontal margin with a few bristly hairs ; abdomen on 
the lateral margins with some tubercles; cornicles at the base broadest; cauda 
somewhat longer and narrower; legs long pubescent, fulvous; femora some- 
what darker in color. 
Length of body 1.5 mm.; antennae 0.8; cornicles 0.25 mm. 
Larvae fulvous, antennae shorter than 1 / 2 the length of the body, rost- 
rum reaching somewhat to the 3rd coxae, cauda very small, the rest as those 
of the apterous viviparous female. 
