26 RYOICIH T.U^AnASUI : 



cxpiiudixl iit the luuse, soiiKswliat slij^litly furved, ;is loug ;is tlu; spur of the 

 List anteuruJ joint or tin; 'Wd niitoiiiiiil joint, silmost twico hs Iod^ :is tho caiid-i. 

 CiiiicLi sboi-t iiud brojwl, tajxiriug, with a sb'glit constriction near the tip, 

 provided with some bristles. Legs piwided with some moderately long 

 bristles ; tai'si ratlwr short. 



r.ength of liody -1.6 mm. Antenna- — about 0.7 lum. 



Winged vivipirons ftniiide. 



Fronhd tiiberclts short, s jmowliat convex on tlie inner side. Antennso 

 imbricated, lakiug hairs; the 3rd joint p'ovided ^^•ith alwnt 36 large tcirciiLir 

 or oval sensorii scattered over th^ whole lengtii ; the 4tli witli 7 [simiLiv 

 scnsorii not in a row over the whole length ; the 5tii with a Sfusorium near 

 the Lirge apical sensorium ; the reLxtivo length of joints as folknvs : III — 50, 

 1X^21, V— 13, VI— o:} (11 + 42). Ilostrmn reaching tho middle coxa^. Cor- 

 nicles simiLir to tlioS(i of the wingless form, a little longer thjui the 4th 

 antenn;d joint. Tlie .Srd oblique only once forked (tliis is perhaps abnormal ; 

 hind wings witli 2 divergent obliques; booklets o. 



lyjngth of body — ^1.5 mm. .Antenna — ^1.35 mm. 



Host — Prwiits pcrsica. 



Distrilnition. — Formosji : Toycn (Kappanzan) 

 Japan : Sapjwro. 



Hitherto uurcvorded from Formo.sa. 



Myzus boehmeriae n. sp. 



(I'l. VUI, A, figs. 1—5). 



Wingless vivijmrons f»Mn;ile. 

 A\'hit-\ Eyes l>l,u'k. Antemia) white, apices of joints slightly diisk^-. 

 Cornicles and Cauda white. Legs white, apices of tibiae slightly dusky, tarsi dusky. 

 Body oval. Head provided with a few moderately long bristles which are not 

 knobted. Frontal tubercles well developed, convex on the inner side. Antenna) 

 long and slender, imbricated, almost lacking liaire ; the 3rd joint lacking 

 sensoria ; the relative length of joints about as follows : 111—103, TV — 85, 

 V— 64, ^'I 148 (28+120). Rostrum reaching beyond the middle cox<t). 



