Bui. 66, Pt. IV, Bureau of Entomology, U. S. Dept. of Agrlcultur 



Plate I. 



Leafhoppers (Eutettix spp.) and Their Work. 

 Fig. l.-EuMtix knclla: a. Adult: h. iiympli; ,•. win-: ,/. ,, uenitalia- f. esg-s ("rcativ 

 ^"ifS'.'V;/''.'''l^"'r""',''r' stem, .showing frosh egf:.s i., place; /,: same, showing 

 esgs ready to hatch: i. old ejj^-scars on boot stems; /. small leaf of sufjar l.eet shovv- 

 ingeliaracteristic "(■urly-Ieat " eondition: k. enlarged .section of hack of an extreme 

 ca.se ol eurlyleaf. showing • warty " eondition of vein.s. i-\s. 2.- KuMtir stnibi- 

 ^; ";'r'^oi nymphs on Iaml)S(iuarters: b, work of nvmphs on .si'igar heet Fig :? — 

 huMtu- scituln: \i\n\t. Jm. 4.-E„t,flix c/ariri.la: <i, Wing: b. head and pronotnm- 

 c,rf genitalia 1-ig. o.-A„M/;.,-/|/.///V^«>-«m.- Work of nymphs on h.if of Ilelianthns.' 

 -^r'r,,' '• "f'-c'i'i""!: \\prk ot nymphs on leaf .if another Ilelianthns. Fig 

 truf' " '"-"""•■ ^^'"S- FiS->^--.t:uldtix6tnchi: u, b. (ieuitalia. i Authors ilhis- 



