396 - s - MATSUMURA 
Length of body 1.5 mm.; antennae 2.6 mm.; cornicles 0.7 mm. 
Hab. — Hokkaido (Sapporo). 
F. P. — Arctium lappa. 
Nom. Jap. — Gobo-Jiigenaga-abnra. 
It is allied somewhat to M. yomogicola Mats., but it differs in having nu- ' 
merous minute sensoria in the 3rd antennal joint, and much longer cornicles. 
36. Macrosiphum sonchicola n. sp. 
Apterous viviparous female — Body oblong, castaneous brown ; antennae 
much longer than the body, the 3rd joint at the apex, the 4th, 5th and the 
postrhinarial each on both ends, fuscous, nearly without sensoria, the 3rd, 4th 
and 5th subequal, anterhinarial nearly 7 times as long as the postrhinarial; 
cornicles very long, at the apex infuscated and funnel-shaped, at the base 
broader ; cauda short, broadly conical ; legs robust, yellowish brown, tibiae 
at the apices infuscated 
Length of body 2.1 mm.; antennae 3 mm.; cornicles 0.6 mm. 
Hab. — Hokkaido (Sapporo). 
F. P. — Sonchus arvensis. 
Nom. Jap. — Hachijona-Iiigenaga-abura. 
It differs from M. sonchi L. in not having distinct sensoria. 
37. Macrosiphum hagicola n. sp. 
W inged viviparous male — Body yellow, oblong; antennae black, much 
longer than the body, frontal tubercles and the first 2 joints fulvous, the 4th 
and 5th subequal, the 3rd somewhat longer, the latter on the outerside with 
a few series of sensoria; anterhinarial somewhat 5 times as long as the post- 
rhinarial ; compound eyes red ; wings hyaline, veins fuscous, costa and cubitus 
yellowish, stigma grayish, 2nd furcal nearly in the middle of the first; corni- 
cles cylindrical, long, black, far surpassing the cauda, at the base grayish ; 
cauda long, gradually pointed towards the apex, nearly one half the length 
of the cornicles; legs very long, yellow in color, femora at the apices, tibiae 
