1 6 12 «•- II * &- W ää ffi « rr H r- s* -t: 



22. Acanthaphis rubi n. sp. (PL I. f. 3, a, b, c, d). 



Apterous viviparous female — JJociy oblong, dark brown. Antennae at the 

 basal one-thiixl paler, with a few iiairs, the branch-likj process of the first joint at 

 the apex blunt, \\'ith 2 capitate hairs on the inner side, the 3rd joint somewhat 

 shorter than the 4th and 5th combined, wants distinct scnsoria; anterliinarial about 

 2^^ times as long as and a littleslendercr than the p jstrhinarial. D jrsal projections 

 each with one or 2 capitate hairs. Cornicles nearly reach to the tip of the cauda, 

 at the apices somewhat infuscated. Cauda conical, near the base with a few fine 

 hairs. Legs concolorous with the body, some hairs being capitate. 



Length — 1.3 mm.; antennae i mm.; cornicles 0.5 mm.; cauda o. i^ mm. 

 Hab. — Hokkaido (.Sapporoj ; in the latter part of July, 1917, collected by 

 the author in the ]iotanical Garden of the Imiierial Agricultural Col- 

 lege. 

 F. P. — Riidus sp. 

 Nom . Jap. — Icliigo-togcabura. 



23, Myzus malisuctus n. sp. 



\\ ingc-d \iviparous female — Body oblong, brownish, head and thorax fuscous. 

 Antennae distinctly longer tlian tiie body, the antennal-process somewhat shorter 

 but broader than the first joint, the first joint with a roundish protuberance, the 3rd 

 joint with about 15, the 4th with about 7, the 5th with about 4 sensoria, the 5th 

 much shorter than the 4th ; anterliinarial about 5 times as long as the postrhinarial. 

 Wings with a very pale fulvous tinge, veins fulvous, stigma pale grayish, 2nd 

 furcal rather near to the ape.x. Abdomen on the side fuscous spotted. Cornicles 

 about 3^ times as long as the tarsi ; cauda short, conical, somewhat shorter than 

 the tarsi. I*'einora, except the bases, and the apices of the tarsi, fuscous. 



I^ength — I.I mm.; e.xp. 4.4 mm.; antennae 1.2 mm.; cornicles 0.25 mm.; 

 Cauda 0.09 mm. 



Apterous viviparous female — Differs from the winged viviparous female as 

 follows : 



Body green, longer. Antennae much shorter than the body, tubercles of the 

 antennal-process and first joint more conspicuous, the 3rd joint wants distinct 

 sensoria; anterhinarial about 6 times as long as the po.strhinarial. Abdonun witlt 



