Pomona C"oi,i,ECiF, Journal of Entomology 



721 



Ch. viminalis Mmi. 



Body— 



Lfiigtii 1.5'2 to 1.65 

 inni. 



Ajiterous forms often 

 dark. 

 Antennae — 



Filament slightly lon- 

 ger than III. 



IV a little longer than 

 V. 



Ch. nigrae ( )estl. 



Length 1.50 mm. 



Apterous forms dark. 

 1 1 1 longest. 

 1 \' longer than V. 

 Tips of segments dark. 



M. monelli n. sp. 



Length l.i2 to 1.4 mm. 



Smaller speeies. 



A{)terous forms very 

 light with none dark. 



Filament of VI mueli 

 longer than III. 



IV shorter than V in 

 winged and apterous 

 forms. 



Legs rol)iist, tips dark, 

 throughout. 



gen. 



EICHOCHAITOPHORUS n. 

 Type E. populifolii n. sp. 



Body — In winged indi\iduals the head little narrower than thorax, and 

 abdomen little wider than thorax. In aj)terous forms the body is broad across 

 the middle of the abdomen, tapering anteriorly to a rather broad head and round- 

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

 spines which are situated on rather large body tubercles. Small species. 



Head — Broad across the front which is straight or well rounded. Antennae 

 arise from sides of the head just in front of the eyes, leaving a wide space be- 

 tween their bases. Without antenna! frontal tubercles. Front hairy. 

 Eyes — With terete marginal tubercles behind. 



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

 of the cornicles. Carried close to the sides of the body 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 IV and VI to- 

 gether, but shorter than VI or the spur of VI, the sjjur of VI less than four times 

 as long as the base and always longer than III and never so long as the sum of 

 the lengths of IV, V and the base of \l. Sensoria large, circular, from three to 

 nine on article III, none on IV, one at the aj)ieal end of V, and one large and six 

 small in the process of VI. Sensoria on III situated in a single row, if three or 

 four they are usuall}' within the basal half, if eight or nine they extend nearly 

 the full length of the article. Articles imbricated. 



Rostrum — In winged forms reaching just beyond the second coxae. In apter- 

 ous forms reaching to third coxae. 



Thora.t — Wider than head, but not wider than the abdomen. 



Cornicles — Truncate or nearly so, longer than wide, approximateh' as long 

 as the style including the wide base. Wider at the base, slightly Haring at the 

 mouth, but not as wide as at the base, narrowest just before the mouth, with net- 

 work of lines on the surface. 



Legs — Rather small and slender, but not .ibnormally so, well in proportion 

 with the rest of the l)ody, hairy as in Cliiiilopliorus. Article I of tarsi one-third as 

 long as article II. 



Style or Cauda — Distinctly knobbed, restricted below knob and enlarged 

 again at base, which is wider than the diameter of the round or globular knob, 



