I'oMiiN \ ('(lI.I.KCiK .lorilNVI. (IK K,NT(lM<II.«(iV 



553 



Pemphigus fraxini-dipetalae ii. >p. 



( l"if;iir. IS.-i) 

 (AI.IIOKMA MOINIAIN ASH I.Ol'SK 



HlNciKI) M\lrMl<)lS l-K.MM.K ( |- Igun- IS()A) 



I.riifftli of liody .'(.."lO iiiiii., widtli of nirsothorax 1 . 1 ."> iiiiii., grcfitrst width of 

 alidoini'ii 1.7.'"> mill., wing cxpaiisioii I '2.00 nun., vitv larp- spi-cics. 



PrrvaiUitrr color — HIack, alidonicn coviTrd with lonj; liliiish-whitr Hih-ciiIi-iut, 

 which extends posteriorly. Head iilaek, inueh wider th.'in hinf;. n.irrowi-r than 

 prothorax. A'i/cjj — Dark ri-d or lirowii, nearly lilnek. ./((/eHHrtc ( I'lfrnre I8(J D). 

 Six-artieled. r<-aehinfj just beyond inetatliorax, l)rownisli-l>laek in color, verv few 

 hairs, htifjtli of .irlicles: I, 0.1 nun.; II, 0.1 i m\ui. : III. O.ti.S mm.; I\', ()..t'i nun.; 

 \. (I..!,") MHii.; \'I, 0..'t7 mm., ( iin;;uis O.OS nun.); tot.il l.;)l mm.; sensoria large, 



Figure 185. Pemphigns fraxini-dipetalae 

 < )n twiffs of I'^riiximis ilipel.ila. .\iitc tlio wiiim<l vi\ i|),Tr(iii> fcni.ilc ami lloccu- 

 linlly covered nymphs. 



tr;insvcrsc,. twelve on article III. three on I\', usual number on V and \'l. 

 luistruni — Reaches just to met:ithor;ix, light yellowish with dark b,i.sc and tip. 

 Prothoraj — -Very dark brown or black, three times a.s wide as long. Mcsolliorax — 

 Very black, muscle lobes wi-11 developed and shiny. .Vc/fl//iornj- -Hlaok. short. 

 .Ihdomrii — Of living specimens very dark green or black, (in mounted specimens 

 it mav appear brown, orange or yellowish due to bh-aching), covered with long 

 bluish-white Hocculence which is thickest posteriorly and decreases towards the 

 ba.se, where there is .scarcely any, wax glands not distinct, row of small dark 



