438 



SYSTEMA CERAMBYCIDARUM. 



4 e GROUPE. IBlDIONim. 



Corpus elongatum; o* antennie longissimse, 9 

 elongatœ, artic. l ua crassus, vel basi excavatus vel 

 haud excavatus, artic. 3° seq. longiore, articulis 3-£ 

 pl. m. ve dilatatis vel haud carinatis vel carinatis ; 

 prothorax elongatuscylindricus later inermis; femora 

 postica nec corpore longiora ; genua interm. et postica 

 nullomodo spinosa. 



Faciès Ibidionis ; frons inermis; antenn. artic. l us 

 subelongatus, basi valdè excavatus, <? artic. 3-4 valdè 

 dilatatis et supra carinatis ; femora postica cor p. ex- 

 trem. manif. transientia ; genua postica utr. parte 

 paulô producta : 



Faciès Ibidionis; antennœ corpor. extrem. haud 

 attingentes, artic. 1° subelongato grocile , integro, 

 artic. 3-5 robustis, 3-10 supra carinatis, artic. 4° 

 prec. duplô breviore ; femora postica corpore bre- 

 viora ; genua interm. et postica conjunctim 8 spinosa : 



Faciès Ibidionis; antennae corpore longiores, artic. 

 1° sub-crasso apiee sub-excavato, 3° seq. duplô lon- 

 giore ante médium carinatus, ad médium subito et 

 abruptè dilatatus ; femora postica corpore breviora ; 

 genua interm. et postica conjunctim 8 spinosa : 



Faciès Cycnidolonis ; antennse corpore longiores, 

 artic. 4° subelongato, integro, 3° valdè dilatato ovoïdale 

 4° longiore, 4° primo breviore, 5° prec. longiore; 

 elytra apice 4-spinosa et bilunulata ; femora postica 

 corpore breviora; genua interm. et postica conjunc- 

 tim 8-spinosa : 



Faciès G. Ibidionis ; o* antennœ corpore multum 

 longiores, artic. 4° crassiusculo integro, 3-5 paulô 

 dilatatis, 3-7 supra longitud. carinatis, 3° seq. lon- 

 giore ; a* femora postica corpore paulà transientia ; 

 genua interm. et postica conjunctim 8-spinosa : 



€h Ibidion. 



(p. 215.) 



G. Lylibœum. 



(p. 216.) 



GK Engyum. 



(p. 216.) 



(L Cycnidolon. 



(p. 217.) 



Gt. Phormesium. 

 (p. 247.) 



G. Octoplon. 



(p. 218.) 



