426 J. THOMSON. — SYSTEMA CERAMBYCIDARUM. 
Corpus elongatum , angustatum : antennæ sat 
breves, graciles, artic. 3° seq. multüm longiore; 
prothorax elongatus ; pedes tenues, postici elongati ; 
femora postica corpore pauld fransientia; tarsor. 
post. art. 115 cæteris conjunctim æqualis : 
Corpus elongatum, angustatum ; antennæ breves, 
artic. 3° seq. manif. longiore, apice incrassatæ ; pro- 
thorax elongatus ; pedes graciles ; femora postica py- 
gidio nec longiora; tarsor. post. art. 1u$ seq. con- 
junctim multüm longior : 
Frons bicornis ; carinæ oculares valdè conspicuæ ; 
antennæ breves, artic. 3° seq. dupld longiore; pro- 
thorax valdè elongatus, cylindricus, convexus ; elytra 
cylindrica ; pedes sat validi ; tarsor. post. art. 15 
cæteris conjunctim certè æqualis; forma insolila : 
Frons inermis; antennæ subelongatæ, artic. 3° 
seq. multüm longiore ; prothorax elongato-globosus ; 
elytra cylindrica; femora postica corpore transientia ; 
tarsor. post. artic. 115 cæteris sing. brevior : 
Antennæ robustæ, vix elongatæ, 12-articulatæ, 
supra sulcatæ, artic. 3° seq. longiore, art. 7-10 den- 
tatis; prothorax globosus; pedes robusti ; tarsi 
robusti subæquales , artic. 1° cæteris sing. haud 
longiore, ultimo breviore : 
Antennæ breves, robustæ, artic. 3° seq. x lon- 
giore, 5° prec. longiore ; prothorax globosus ; elytra 
brevia ; pedes clavati ; femora postica corpor. extrem. 
valdè transientia ; tarsor. poster. art. 1u$ cæteris 
conjunctim ferè æqualis : 
Antennæ breviusculæ, 12-articulatæ ; prothorax 
elongatus: pedes postici maximè elongati ; genua in- 
term. et postica singula bispinosa ; tibiæ posticæ ar- 
cuatæ ; tarsi postici graciles : 
Antennæ breves, 11-articulatæ; prothorax glo- 
bosus ; pedes postici valdè elongati ; genua interm. 
et postica singula bispinosa ; tibiæ posticæ rectæ ; 
tarsi postici robusti : 
G. Arcyphorus. 
(p- 192.) 
&. Ischsodora. 
(p. 192.) 
G. Sclethrus. 
(p. 192.) 
G. Raphuma. 
(p.492) 
G. Epipedocera. 
(p. 193.) 
6. Cbrida. 
(p. 193.) 
G. Euryscelis. 
(p. 193.) 
G. Neoclytus. 
(p. 193.) 
