—24— 
Head short, somewhat prominent before the eyes ; vertex arcuate, very short ; 
frons not keeled, with two longitudinal impressions ; sides of clypeus 
slightly keeled at base ; veins of clavus united before the middle ........ 
G. 3. -Rudia, Stale 
Head moderately produced before the eyes ; vertex produced ; frons distinctly 
keeled-; costa remote from margin, sending out numerous transverse 
MEEVULESS . x.< sty teers ta OED ee ee G. 4. Numcia, Stal. 
2 Anterior tibize somewhat longer than the femora and trochanters united ; head 
short, somewhat prominent before the eyes, obtuse ; frons somewhat convexly 
reflexed at base, also without a keel at base ; sides of clypeus obtusely sub- 
carinated. 
Head very slightly prominent before the eyes .. ... G. 5. Clardea, Signoret- 
Head very much produced before the eyes .... G. 6. Conchoptera, Stal. 
Wings subelongated, scarcely enlarged toward apex ; frons with a median 
keel, obliterated towards the base .... ......... G. 7. Isporisa, Stal. 
Wings toward apex gradually, greatly enlarged ; frons without a keel....... 
G. 8. Paricana, Stal. 
Exterior margin of wing all greatly rounded ; radial vein forked nearer to the base 
than to the interior ulnar vein, emitting oblique branches ..... REM rico 
G. 9. Alcestis, Stal. 
Costal margin of wing scarcely or slightly rounded ; the radial and interior ulnar 
veins very much alike forked from base, without branches, costa remote from 
margin and emitting numerous transverse veins ; frons with one or three keels. 
Head very greatly triangularly produced..... ....... G. 10. Daradax, Stal. 
Head slightly prominent before the eyes, obture....G. 11. Tropiduchus, Stal. 
4 Body broad, oval, depressed ; wings depressed, slightly horny, reaching somewhat 
beyondithe apex) of abdomenhm ase aoe meee eee G. 12. Gastrina, Stil. 
v2 
Tribe IH. DERBINI. 
TABLE OF GENERA. 
Hegdaniztrower tha the thoraxe: 220 hos occ tet sn serie ee sere eee eeiere lene ae eere 2: 
Meadsandithorax of equal’ breadth) (eo eh ce. -eereeyo errs G. 1. Fescennia, Stal. 
Antenne with appendages at base ; last joint of rostrum twice longer than broad. . 
G. 2. Otiocera, Kirby. 
te 
Antennz without appendages. 
Second antennal joint oblong or elongated, apex with a sinus above............ 3. 
Second antennal joint of variable length, subglobose or elongated, apex without a 
sinus above. 
Antennz remote from clypeus, inserted close to the eyes or behind the inferior 
part of the cheeks. 
Wings from within behind the clavus, dilated, rather long, obliquely roundedly 
truncate at apex ; clypeus somewhat longer than the frons, narrow, with 
keels ; scutellum with three keelS................. G. 3. Flaccia, Stal. 
Wings from within behind the clavus not enlarged. 
Head before the eyes strongly produced.............. G. 4. Persis, Stal. 
Antennz inserted on the inferior part of the cheeks near the clypeus. 
Head before the eyes very slightly prominent, compressed..............-. 
G. 5. Phenice, Westwood. 
Head before the eyes greatly produced.............. G. 6. Halcita, Stal. 
