—25— 
3 Wings very broad at the middle, narrowed behind the middle. 
Second antennal joint suboblong or somewhat elongated............0...000055 
G. 7. Mysidia, Westwood. 
Second antennal joint short, tuberculate with a dorsal seta...............-.4.- 
G. 8. Ceuchrea, Westwood. 
Wings not so broad in the middle. 
Second antennal joint elongated, sublinear, compressed, slightly obliquely 
truncate at apex, setigerous ; head compressed, subtriangular, with two 
keels ; frons subrostrate, rostrum straight ; eyes prominent, sublunate..... 
G.g. Anotia, Kirby. 
Tribe IV. CIXIINI. 
TABLE OF GENERA. 
Posterior tibize with one or three spines. 
Head with three triangular or transversely quadrangular facets................ 2. 
Head without facets, prominent. 
Vertex pentagonal, angularly grooved posteriorly or sinuately curved ; frons 
almost a right angle, twice longer than wide, high at its apex. 
Elytra enlarged behind the clavus, covering one another ; posterior tibiz with 
Onersmallespine imithe middle, My. wereleeerree ee G. 1. Cixidia, Fieber. 
Elytra of equal breadth, posteriorly rounded not dilated ; posterior tibize with 
HMIGCERS IMCS aetrinietete ni tieire eis si. ase ig ehevess «7 G. 2, Ommatissus, Fieber. 
2 Wings broadly triangular behind, trilobed at their exterior margin near the flexible 
SUUUTTIRE oe Be 8 Sac Ray ey a G. 3. Trirhacus, Fieber. 
Wings not lobed at their posterior border, feebly curved ; pronotum strongly, sub- 
angularly incised posteriorly. 
MESONGHUM with tOKeeNWeEels races. sce, seals asia ce G. 4. Cixius, Latreille. 
Mesonotum with five keels. 
Vertex elongate pentagonal; frons with the median keel simple at apex ; 
scutellum with the intermediate keel feeble ; posterior tibiae with two 
GOIN Seed epee eet Gh itelsl aateraicns Grete th Asbo aes wae G. 5. Hyalesthes, Signoret. 
Vertex more or less broadly pentagonal with sharp ridges ; scutellum with all 
the keels distinct; posterior tibiz with three spines................- 
G. 6. Oliarus, Stal. 
SUBFAMILY IX. DELPHACINZ. 
TABLE OF GENERA. 
Antenne of variable length, the second joint longer than the first.............. 2 
Antenne long, first joint longer than the second. 
First antennal joint compressed, somewhat dilated above and below. 
Anteniomlersidilated, tOlaAGEOUS:,. i). =~ 1 -/)e se eae G.1. Asiraca, Latreille. 
Anterior legs not dilated, simple. 
Head as broad as the thorax ; antennze and legs moderate................ 
G. 2. Areopus, Spinola. 
Head narrower than thorax ; frons narrow, elongate, narrowed upwards ; 
AioyKsonnes evaral tyes Kone 1,8 SAO ee CO OEE G. 3. Sparnia, Stal. 
First antennal joint, subcylindrical, not compressed ; legs long, simple......... 
G. 4. Hapalomelus, Stil. 
2 Antenne greatly lengthened, dilated............... G. 5. Copicerus, Schwarz. 
Antenne simple, cylindrical or somewhat compressed, 
