(jg nVOICIII TAKAUASUI: 



Dish-ibutioii. — -Lipui : Tokyo, Sapporo. 



CoUocted by ill'. K. Yokoyauui and the author. 



Tliis aphis is very coinmou ueai- Tokyo. The eggs luitch in the middlo 

 of April, and tlie viviixirous femjJes .are always winged. The sesiuil forms 

 occiu- in November. Tlie males m-o winged, but tlie oviparous females ai"e 

 wingless as is common among plant-lic-(!. 



Drepanphis tokyoensis n. sp. 



{I'l. YI, A, iigs. 5—10) 



Winged viviparous female. 



Green. Wings clouded with fuseous, paler at the l«se. J3ody oblong, 

 hu'king wax. Head provided with a ft^w rather long noruud bristles, arishig 

 from ver}- amall tubercles. Frontal tul)ercles distinct, but not large, straight 

 on the imier side. Ej'es Lirge, with prominent ocular tul)ercles. Auteuu:ie 

 very kmg and slender, almost lacking hairs ; the 1st joint much larger than 

 the 2nd, somewhat angnlate 1 on the inner side ; the ord somewluit imbricakd, 

 provided with 8 — 10 ti'iiusversely naiTowed seusoi'ia t>f medium or rather hu'ge 

 size in a row at the base; the -Ith imbricated, lacking sensoria ; the relative 

 length of joints as follows: IH— 9(5, W— 82, V— S3, VI— 100 (39 f (51). 

 lljstrutu not reaching the middle coxiio. Thorax and abdomen jjrovided w^ith 

 Suae long stout bristles, arising fi'om \er3- s.nall tulxTcles, lacking larger 

 tiil)ercles. Wings r.ither uaiTow ; the 3rd (iblii]ne twice forked, stigmatic vein 

 not ol)Solete, sh'ghtly curved, stigma wide, Im^vided with 2 or 3 seusoria ue;u' 

 the biise ; hind wings ^vith 2 parallel obliques ; booklets 3 or 4. Cornicles 

 liU'ge, stout, alx)ut 1.8 times as long as the cauiLi, often moderately swollen 

 about the middle, naiTowed on the distal p;)rtion and at the base, sometime^ 

 not ujuTowed at the bast?, somewhat curved, somewhat imbricated, abt»ut 2.5 

 times ;is limg as wide. 



CanJa consti'icted at niidlength, with the distal half almt)st globuLu', 

 provided with :! paii-s of lateral bristles. Anal plate hardly indented. Legs 

 provided with uimierous short hau-s ; fi-ont fcuDra very stout, tarei normal. 



Length of Injdy — alwut 1.7 mm. Antenna — alwut 2.4 mm. 



Fore wing — alwut 2.7 mm. 



