—=—3—— 
Vertex produced with an acute margin, flat or slightly convex............. 4. 
Vertex not produced, short, thrice keeled. 
Thorax elevated on the disk, compressed with an acute keel on each side. . 3. 
Thorax transversely convex. 
Ocelli distinct. 
Wings with two series of transverse. moderately regular veins, the 
longitudinal vein behind and between these series, simple, not 
INE gel Sea 8 A stoke i ere Pe slay ie G. 6. Dascalia, Stal. 
Wings between the clavus at apex and the intercostal longitudinal vein 
with a regular series of distinct transverse veins, before this series 
nowhere wanting in irregularly disposed veins, but between the 
second series, veins regularly transverse; head truncate —......... 
G. 7. Ormenis, Stal. 
Wings without series, or then with irregular transverse veins, series in 
that case not reaching the intercostal vein....G. 8. Flata, Fabr. 
Ocelli wanting ; transverse veins of wings irregularly arranged ic 
G. 9. Peeciloptera, Latreille. 
3 Veins of wings irregularly transversely arranged ... ....G. 10. Sarpanta, Stal. 
4 Head triangularly produced; frons flat, convex ‘at base; wings with irregular 
transverse veins ; marginal suture straight, the angle of the suture very longly 
LUO CIICEG IME Mean tusm gists nieve to eFiaiee Ween Ss anaes G.*11. Carthaca, Stal. 
Corium hardly longer than the clavus. 
Head transversely quadrately produced, anteriorly somewhat roundedly trunc- 
ated ; frons somewhat concave............. G. 12. Phlebopterum, Stil. 
Head truncate ; wings reaching somewhat beyond the apex of abdomen........ 
G. 13. Bryllis, Stal. 
Corium nearly twice the length of the clavus. 
Wings elongated, narrowed, very gradually narrowed toward the apex ..... 3: 
G. 14. Cyarda, Walker. 
5 Antennz somewhat elongated, reaching anteriorly beyond the margins of the 
cheeks ; ocelli subobsolete or wanting............. G. 15. Copsyrna; Stal. 
Antennz short, distinct. 
Transverse veins of wings irregularly arranged. 
Vertex flat, produced, but the disk of thorax and scutellum not lying in the 
SAMS Pl aNertrAseesare ryt sek tic rtiercyeeied sais ies G. 16. Siphanta, Stal. 
Vertex not prominent, but the frons at base prominently gibbous ; thorax and 
Senitell UmiCO VER Sater ses waiey acai cis el sod tian ote) aides G. 17. Gyaria, Stal. 
Transverse veins in a regular contiguous series toward apex of wings, between 
the apex of the clavus and the intercostal veins. .... G. 18. Petrusa, Stal. 
Clavus without a distinct transverse vein. 
Wings with an oblique transverse vein before the middle, between the interior 
ulnar veins and the ramus of the exterior ulnar veins................. 
G. 19. Atella, Stal. 
Heuronsandclypeus without amediamskeell; 7. 1ge eisai eis cieioeeice se eee 8. 
Frons and clypeus with a median keel. 
Giypeusanduitonsnwat hua sutitre, DetWeeCniinwtcesrist nse ee sie sie aa teeicesiererciie 7 
Clypeus and frons without a suture between. 
Vertex triangular with a median keel ; mesonotum lozengoidal with a median 
keel and straight diverging lateral keels ; rostrum prolonged nearly 
between the middle coxz........... .-..G. 20, Hemitropis, Fieber. 
