A LIST OF THE APHIDIDAE OF JAPAN, WITH DESCRIPTION aoi 
Nora . Jap . — Sakjiraso-higenaga-abura. 
It is closely allied to M. primulae Theobald, (Journ. Econ. Biol. Vol. 
VIII, p. 91, f. 28, 29, 191 3), from which it differs in having only one series 
of sensoria nearly in a single row. 
42. Macrosiphum senecionis n. sp. 
Apterous viviparous female — Body fulvous, oval; antennae much longer 
than the body, frontal tubercles on the innerside gibbous, the 3rd joint dis- 
tinctly longer than the 4th, wanting distinct sensoria, the 3rd, 4th and 5th at 
the apices and the 6th, except the base, fuscous, anterhinarial nearly 7 times 
as long as the postrhinarial ; abdomen without any marking, except the 
crimson-red eyes of the larvae, which being visible through the dorsal skin ; 
cornicles paler, long, towards the bases broader, at the apices fuscous; cauda 
whitish, conical, with three indistinct constrictions, somewhat shorter than 
the half length of the cornicles; legs slender, long, apices of the femora and 
tibiae, as well as the whole part of the tarsi, fuscous. 
Length of body 1.5-1.8 mm.; antennae 3—3.5 mm.; cornicles 0.6 mm. 
Hab. — Hokkaido (Sapporo). 
F. P. — Senecio palmatus. 
Norn. Jap. — Nanatsuba-Jiigenaga-abnra. 
43. Macrosiphum yomogicola n. sp. 
Winged viviparous female— -Body dark brown, with a greenish shade, 
broad-fusiform; antennae much longer than the body, with a few long hairs, 
the 3rd joint with a few sensoria, somewhat longer than the 4th, at the base 
being yellowish, the 5th somewhat shorter than the 4th, anterhinarial nearly 
4 times as long as the postrhinarial; frontal margin shallowly excavated, 
with a few hairs, frontal tubercles somewhat shorter than the first antenna! 
joint; pronotutn paler ; abdomen oval ; cornicles relatively short, broader at 
the bases, nearly as long as the cauda; cauda narrowly conical, with some 
long hairs; wings large, hyaline, with a fulvous tinge, veins fulvous, stigma 
