I'llMO.NA Clil.l.KfiK .1(11 HNAI, Df F.NTOMOLOOV 721 



Ch. viminalis \\>>u. Ch. nigrae t )i>il. M. monelli ii. sp. 



lUiily l.<iif;lli l.;-)() iiilii. I.<iijr(|i 1.2 lo \.\ liiiii. 



I.niglli I. .')■-' to l.().") Aplirous forms d/irk. SiiuiIIit sptTifs. 



mill. Ill lc)iif;i St. .\|iti'riiiis forms vcrv 



-Vptiroiis forms oft.ii I \' loiif;i r tliaii \'. Ii;;lil with none dark. 



ilark. 'I'i|)s of sfjjmciits dark. l-'ilaiiicnt of \'I iiiticli 



lutennai — loiif;<-r than III. 



I'ilaiiniit slifflitly Ion- IV .sliortir timn \' in 



r tli.iii III. winged and apterous 



I \' .1 lilllr loiiij;(r than forms. 



\ ■ I-<'Ks roliMst, tips (l.irk. 



throughout 



EICHOCHAITOPHORUS n. fjun. 

 Tyijc E. populifolii ii. sp. 



liotlil 111 wiiifjcd individuals tin- luad little narrower tli.iii thorax, and 

 ilHloinen little wider th.-in thorax. In apterous forms the hody is broad across 

 the middle of the ahdomen. tajiering anteriorly to a rather broad head and round- 

 ing otf posteriorly to a blunted point, flat. Covered with long and short stout 

 spines wliieh are situated on r.ather large body tubercles. Small species. 



Ili'iid — Uroad across the front which is straight or well rounded. Antennae 

 .arise from sides of the head just in frimt of the eyes. K.aving :\ wide space be- 

 tween their bases. Without aiiteiinal frontal tubercles. I'ront hairv. 

 Kycs — With terete m.arginal tubercles behind. 



Anlcnnar — Not as long as the body, reaching to or slightly beyond the bases 

 of the cornicles. Carried close to the sides of the Ixidy when the insect is feeding, 

 at right angles with the main axis of the body when moving about. Article I 

 wider, but little or no longer than II, III nearly or as long as I\' and \'I to- 

 gether, but shorter tli.an \'l or the spur of \'I, the spur of \'l less than four times 

 .'IS long as the base and always longer th.'in III and never so long as the sum of 

 the lengths of I\', \' and the base of \'I. Sensoria large, eircul;ir, from three to 

 nine on article III, none on I\', one at the .apical end of \', and one large and six 

 small in the ])rocess of V'l. Sensoria on III situated in a single row, if three or 

 four they are usually within the b.asal half, if eight or nine they extend nearly 

 the full hiigtli of the .artiele. Articles imbricited. 



liostruiii- In winged forms reaching just beyond the second coxa-. In .apter- 

 ous forms re.acliing to third coxie. 



Tlioraj- — Wider than head, but not wider than tin- .'ibdomeii. 



Cornicli's — Truncate or nearly so, longer than wide, approximately as long 

 as the style including the wide base. Wider at the Iwise, slightly H.-iring at the 

 mouth, but not as wide as at the base, n.arrowest just before the mouth, with net- 

 work of lines on the .surface. 



Lfgs — Rather small and slender, but not abnormally so, well in proportion 

 with the rest of the body, h.airy .is in Clinilitplinruii. Article I of tarsi one-third as 

 long as article II. 



SI i/li- or Ciiiida — Distinctly knobbed, restricted below knob and enlarged 

 ag.'iin at base, which is wider th.an the diameter of the round or globular knob, 



