Matsumuka : New Aphidinai. ui' Japan. 5 



and distinct, the inner margin, where the first oblique opens, somewhat infuscated. 

 Legs entirely black, only the femora at the extreiue bases fulvous. 



Length — 5 mm.; antennae 11 mm.; exp. 23 mm.; cornicles 1.3 mm.; cauda 



0.5 mm. 

 Hab. — Hokkaido (Sapporo); 011 the 28th, June, 1917, collected by the 

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

 ¥, P. — Cirsiiun sp.; sucking the juices of the shoot. 

 Nom. Jap. — Asanu-kigeiuigaabura. 



4. Macrosiphum adenophorae n. sp. 



Winged viviparous female— Dark brown, front, thorax, and abdomen on the 

 sides, pale brown. Antennae black, the 3rd joint at the base fulvous, on the 

 outer side with about 12, on the inner side with about 25 sensoria, being provided 

 with a few rigid hairs. The 4th and 5th joints lacking sensoria, with a few rigid 

 hairs; anterhitiarial nearly 5 times as long as the postrhinarial. Wings hyaline, 

 Costa, cubitus and stigma testaceous, costal cell pale testaceous, veins nearly con- 

 colorous with the wing, 2nd furcal rather nearer to the apex than to the middle of 

 the first. Cornicles straight, at the base broader, as broad as the femora, distinctly 

 longer than one-half the length of the hind femur. Cauda brownish, long, as 

 broad as the femora, at the apex conical, near the base somewhat constricted, with 

 a few long hairs on the sides and apex. Legs fuscous, femora and tibia at the 

 basis pale brownish. 



Length — 2.5 mm. (excl. caudaj ; antennae 3.7 mm.; exp. 13 mm.; cornicles 

 0.6 mm.; cauda 0.3 mm. 

 Apterous viviparous female — Differs from the winged viviparous female as 

 follows: 



The 3rd antennal joint on the outer side with about 22, on the inner side with 

 about 9 sensoria. Femora and tibiae at the basal halves testaceous. 



Length — 3.7 mm.; antennae 4.0 mm.; cornicles 0.8 mm.; cauda 0.4 mm. 

 Hab. — Hokkaido (Kushiro); on the iith, August, 191 7, collected by the 



author. 

 F. P. — Adeiioplwra vefticillata, sucking the juices of the petiole. 

 Nom, Jap. — Shajin-higcnagaabiira. 



