58 K. Tiikiiliashi : 



twice as long as wide, broadest at the base, imbricated, and jirovided 

 witli 2-i long bristles. Cauda large, wider and a little longer than 

 the cornicle, provided wilb many long hairs. Legs long and stcait. 

 providfil with many long tint' hairs. 



Length of liody — 1.('> mm. Antenna — LOnini. 



Host. — Ficus wlyhtiana. 



Distribution . — Formosa (Tai 1 1 oku). 



Aphis somei Essig et Kuw. (I'L. i, 2, tigs. 1 1-]S). 

 Proc. Calif. Acad. Sc. 4tli Series, viii, No. 3, pp. 75-7U (lUiy). 

 Hosts. — Rhus scmUdaia; Sapium sebiferum; Heptapleurum octo- 



phyllum; Viharnum formosamim; Bischoffia javanica; Pitto- 



sporum lohir<t. 

 Distribution. — I'^ormosa (Taihoku. Urai, Shinka. Shirin. Kwan- 



sliirei; Shinchiku); Japan (Tokyo). 

 Hitherto unrecorded horn Formosa. 



Aphis shirakii n. sp. (J'L. v. i, tigs. 7-lo). 

 Wingless viviparous female. 



Vullow. Eyes black. Antennae and legs pale yellow. Cornicles 

 and Cauda dusky. Ikxly oval, strongly convex on the dorsum, with- 

 out hairs. I']ye3 small. Frontal tubercles very short. Antennae 

 short, 5-jointud, not hairy, ind)ricated; the 3rd joint without sensoria; 

 the relative length of joints as follows: III-.SO. 1 V-14, V- 1 1(11 +;j(i). 

 Rostrum stout, reaching l)eyond the middle coxae. Prothorax and 

 the 1st and 7th abdominal segments with a small, blunt tul)ercle on 

 each side. Mesothorax with a short, blunt lateral tubercle, which is 

 larger than those on the prothorox and abdomen, at the front .angle. 

 Cornicles imbricated, rather short, not reaching the eautla, al»out 4 

 times as long as wide, broadest at the iiase. and somewhat tapering. 

 Cauda large, a little shortei', but wider than the cornicle, with o or 4 

 pairs of long lateral bi-istles. Legs short, with a few short setae. 



