416 J.'THOMSON. — SYSTEMA CERAMBYCIDARUM. 
plices ; prothorax later. posticè productus; prost. 
append. producta, apice profundè lunata : pedes tarsi- 
que postici elongati : 
Antennæ breves, simplices, artic. 3° seq. vix lon- 
giore; prothorax later. minutè spinosus; mesost. 
append. producta ; pedes robusti : 
Antennæ breves, artic. 3° seq. magis quàm duplô 
longiore; prothorax cylindricus ; elytra abdomine 
breviora ; prost. et mesost. append. laminiformes ; 
pedes graciles, postici elongati : 
— — Elvira abbreviata, corporis dimid. vel attin- 
gentia, vel nunquam multüm superantia : 
< Antennæ corpore longiores extus dentatæ, artic. 
3° seq. longiore ; elytra corporis dimid. haud attin- 
gentia ; pedes postici elongati : 
Antennæ 12-articulatæ, corpore paul longiores, 
artic. 3° primo æquale, 4° tertio breviore ; elytra 
corpor. dimid. haud attingentia : 
Antennæ breves claviformes, artic. 6 ultimis dila- 
tatis, artic. 1, 3, et 4 ferè æqualibus; elytra abdo- 
mine multum breviora; femora postica valdè clavata : 
Antennæ breves, artic. 4° tertio breviore, 3-11 ferè 
subæqualibus ; elytra corpor. dimid. breviora ; fe- 
mora clavata : 
AA. Insecta Americana : femora vel clavata vel in- 
crassata : 
$$$. Frontis carinæ oculares sæpius nullæ : 
Antennæ breves, artic. 3° relativè elongato, 3° seq. 
longiore, 5-11 incrassalis ; elytra brevissima apice 
rotundata : 
Antennæ breves, artic. 3° seq. longiore, 5-11 in- 
crassatis, elytra paulô prolongata ; pedes postici lon- 
gissimi : 
G. Distichocera, 
(p. 162.) 
G. Tragocerus. 
(p: 162.) 
G. Thranius. 
(241022) 
G. Hesthesis. 
(p. 162.) 
G. Agapete. 
(p. 162.) 
&. Merionæda. 
(p. 163.) 
G. Epania. 
(p. 163.) 
G. Tomopterus. 
(p. 163.) 
G. Charis. 
(p. 163.) 
