8 n -if^— Fl ^ * n & ill- # CD ;ff M r- St -C 



anterliinarial near]\' i \ times as long as the iKXstrhiiiarial. W'int; witli a i)ale 

 fuhdus tiii^e, stii^iiia pale grayish, at the hind margin somewhat infuscated, veins 

 fulvous. Cornicles dark fulvous, somewhat broader than the hind tibia, as long 

 as the same tarsus, Cauda fulvous, with very fine gra\'ish hairs, nearl\' i h times 

 as long as the cornicles, and nearly as broad as the postrior femur at the apex. 

 Legs fulvous, femora and tibiae at the apices, and the tarsi, fuscous. 



Length — 1.5 mm. (excl. cauda) ; ex)). 3.5 mm.; antennae 1.5 mm., corn- 

 icles 0.18 mm.; cauda 0.22 mm. 



Ilab. — Hokkaiflo (Sapporo) ; in the earl)- part of June, 1917, collected by 

 the author in the Botanical Garden of the Imperial Agricultural College. 



F. L. — ThalictnLin aquilegifolium ; attacking the upper part of the shoot. 



Nom . Jap. — Karainatsnso-abjira. 



11. Rhopalosiphum hydrangeae n. sp. 



Winged viviparous female — Hod\' dark brown, head, pronotvmi and the basal 

 one-half of the abdomen, fulvous. Antennae fuscous, distinctly longer than the 

 body, the 3rd joint at the base pale fulvous, with about 21 sensoria on the outer 

 side, the 4th with about 3 sensoria near the base, somewhat shorter than the 3rd, 

 and much longer than the 5th ; anterhinarial onh^ 2\ the length of the 5th ; anten- 

 nal-process as long as the 2nd joint, but much broader than the first. Wings with 

 a light fulvous tinge, veins fulvous, 2nd furcal nearl\- at the middle of the first, 

 .stigma ])ale grayish. Abdomen on the sides fuscous spotted. Cornicles fuscous, 

 long, much dilated near the middle. Cauda fulvous, conical, about 1/3 the leiLgth 

 of the cornicles. Legs fulvous, the apical halves of the femora, apices of the 

 tibiae, and the tarsi, fuscous. 



Length — 2 mm.; exp. 7 mm.; antennae 3 mm.; ccirnicles 0.5 mm.; cauda 

 0.2 mm. 



Apterous viviparous female — Differs from the winged viviparous female as 

 follows : 



l^ody broader, brownish \-ello\v. .\ntennae fuscous, at the basal 1/3 pale 

 fulvous, the 3rd joint with 2 or 3 sensoria, 4th much shorter than the 3rd, the 5th 

 somewhat shorter than the 4th ; anterhinarial nearly 4 times as long as the post- 

 rhinarial. Legs pale fulvous. 



