PoM( NA College Joi'unal of Entomoloov 735 



ill tin- riiii.iiiKlir. Third li'i.tcnidnl iioniially twirt-liriiiiclu-d iis shown in A, .S. 8, 9. 

 and the ri^lit wiii^s of pairs I I- and IK. In (i, ri^lit win);s of )mirs I.S, I I, \6 nnd 

 IK, and liotli wiii^s of \Ci. tilt- rijflit wiii); of I.S shows a rudiment of n M-<-und 

 branch near th»- wiiijj tip; the ffrcat diffiTciiic in tin- position of thi- forks of all 

 of tlu-sf Vfin.s are iiotic-cahlc. In one case, the It-fl wing of IT. tlurt- is a third 

 fork near tlir wiiifr margin and a ri-vt-rsi- third fork near thf margin of the right 

 wing. Tlif base of tlir third discoidal is norinaliy obsoU-tr as is shown in nrnrlv 

 every wing. In l(t the base of tin- first fork is broki-n up very badly, and in many 

 cases the lower branehi-s of the two forks are badly twisted, but in spite of this 

 it will be seen that tiiey are usually p:irallel. .\ll veins dusky brown. Srcoiiflari/ 

 (Figure '2.SI, ].'>, II, \'> and !!(). .\lso variable in venation. Length from I..M 

 mm. to 1 . 1 1- mill., width from U. .'<.'> iiim. to |I..'I7 mm. N'oriii.iilv with two diseoid/iK, 



Figure 232. Eichochaitcphorus popjlifolii K~-ii; 



but often with only one. .Siibeost;ii iin(iiilate. usually most strongly curved at 

 the base of the .second discoidal, may or m.ay not extend to the tip of tiic wing. 

 I'irst di.scoidal arises slightly beyond one-tiiird the distance from the Ivise to the 

 apex of the subcostal, may be obsolete at the base or wanting as shown in I I and 

 left wing of pair 1'2, straight, does not extend to wing margin, dusky brown. 

 Second discoi<Ial arises near the middle of the sulx-ostal at its greatest bend, is 

 considerably longer than the first discoidal. nearly straight or slightly Ix'nt out- 

 wardly. Style — (Figure 2.S2. 7. 8. 9). Distinctly globular with a very narrow 

 neck and a base wider than the knob, yellow, with rather long coarse spines. 



