ArniDiP-i: of ForaiosA. 



131 



(Mule iiUil ovipiirons fomiilel 



The ;mthor has uever co]Iei.'tcHl tliesu scxiutl hvias, whu-h pr.iliably occiir 

 ill Novemlier ueai' Tokyo. 



(lutermediate ) 



Mauy braeliyptcTon? feiuilos are normally priDcluccd aliLio.st in every 

 geuevatiou, a? iu 3I//-:oc.dUs hiricolo, the thorax of which form=j are not well 

 developed, being provided with very short wings. 



(Habit) 



The ih]Ai[s is rather inactive, and does not jniiip from the liost \\hen 

 disturbed. 



(Distiibution) 



Japan : Tikyo. 



Notes on the brachypterous forms of ApMdida?. 



Ti:e brachypterous form may be seen in some Aphiilidro as iu iiir.ny 

 other insects. In these forms of the f.imily two ratlier clearly def3uo_l tyijcs 

 of wing structiu'e may be recognized as follows: 



1. Wings haviug essentially a uymph.al character, i. e., develophig 

 as uorD:al wings np t) the last uymphal stage, but failing to expand. 



2. Wings essentially normal, except f(jr their much smaller size. 



Of these two gi'onps the first is found in the tribes of Aphidina, Lachniua, 

 etc, and the second onlj- in some C.dlipteriua, 3I;/zocaUis l-uricoln (Mats.) and 

 SluL-npltis cdticohiis (Essig et Kuw). Tlie Ijrachypterons forms, which belong 

 to the fii'st group, ai'e produced somewhat uncommonly or extremely rarely iu 

 the most Aphidina and Lachina, Imt not uncommonly among tbe sexuii.-ir.n of 

 Aph'm si'iiiluci L., the males of Auip/iorop/iom indiaan (v. d. Croot) and the 

 winged viviparous females, tint are parasited by a sixx;ies of €li;dcidida>, of 

 Mncrosiphuiii formosanum Takah., as already mentioned ; and the brachypterous 

 ones of the second group are of normal occurrence iu ^IijzocnlUs kuricola (jMats) 

 and Shivfiphis ccKicoIc/is (Essig et Kuw). 



Shivaphis celti Das. 



(Host plant) 



