NOICTII AMKKICAN HOMOPTERA. 



297 



Suhfaniily JASSINA. 

 Tribe DORYDINI. 

 Genus Cochlorhinus Uhler. 

 Dori/ceph(diis Kusch. 

 " Hecalus Stal. 

 " SpanhergieUa Sijjn. 

 " Paraboloc7-(itHs Fieb. 

 '■ Paramesus Fieb. 



Tiihe DELTOCEPHALINI. 

 Genus Platymetopins Burm. 

 " Deltocephaliis Buriu. 

 " AUygus Fieb. 

 " Goniagnathus Fieb. 



Tribe ATHYSANINI. 

 Genus Athysanns Burm. 

 " Eutettix Van D. 

 Phlepsius Fieb. 

 " Acinopterus Van D. 



Synoptical 



Ocelli on tbe f:ice below the anterior edge 



Ocelli on the disc of the vertex 



Ocelli on or near the anterior edge of the 



Genus Scaphoideus Uhler. 

 " ThariDiotettix Zett. 

 " Limotettix Sahlb'g. 

 " Chlorotettix Van D. 



Tribe JASSINI. 

 Genus Jassus (Fab.) Stal. 

 Terulia Stal. 



Tribe CICADULINI. 

 Genus Cicadula Zett. 

 " Gnathodus Fieb. 



Subfamily TYPHLOCYBINA. 

 Genus Alebra Fieb. 

 " Empoasca Walsh. 

 " Kyhos Fieb. 



Dicraneura Hardy. 

 Typhlocyba Germ. 

 " Eupteryx Curtis. 



Tables.* 



of tbe head. 



Family BYTHOSCOPID^. 



Family TETTIGONID^. 



head, or vvanting-Faniily JASSID^E. 



Family TETTIGONID^. 



Front large, prominent, strongly convex, cheeks long and narrow, anterior edge 

 of the head obtuse, or rounded Subfamily TETTIGONIDA Berg. 



Front flat, or slightly convex; more or less impressed acYoss the base beneath 

 the prominent and acute, or rounded and overhanging anterior edge of the 

 head ; cheeks at least moderately expanded Subfamily GYPONINA Stal. 



Family JASSID^. 

 Ocelli placed superiorly close to the anterior edge of the head. 



Subfamily ACOCEPHALINA. 



Ocelli on the anterior edge of the head, or wanting (A). 



A. First sector of the elytra forked near its base, the inner branch generally 

 united to the second sector by one or two transverse nervures, usually one 

 or both branches of the first sector are again forked, forming two or 

 three antiapical areoles; sui)ernumerary cell present in the wings: 

 ocelli present Subfamily JASSIXA. 



* I have omitted from this synopsis the Ulopidjp and Ledrida", or Scarida- of 

 some authors. The former has all tlie tibiie 4-augled and armed along their 

 edges with a few weak bristles. In the latter only the elongated liind tibise are 

 4-cornered and armed with numerous spines, and generally the outer is more or less 

 expanded and foliaceous, and the pronotura is elevated into a curved horn above 

 each shoulder. Oue American species of Ledra has been described, but I have 

 not yet seen an example. Of Ulopn onv first species is described in the lue.sent 

 paper. 



TRANS AM. ENT. SOC. XIX. 



(38) 



DECEMBER, 1892. 



