438 Mr. H. W. Bates <m CWamhycidce 



7 . L'issonutus simplex, n. sp. 



L. hifjuttato forma similis ; niger, femoribus, processu 

 mesosterni, metasterno toto, abdomineque rufo-ferru- 

 gineis ; elytris immaculatis, apice late truncatis, angulo 

 exteriori spinoso. 



Long. 5 lin. ? . 



//a6.— Villa Nova.* 



Sub-fam. Megaderinje. 



Genus Megaderus. 

 Latreille, Ri^'g. An. (ed. ii.) v. Ill ; Lacord. Gen. ix. 216. 



1. Megaderus stigma. 



Cerambyx stigma, Linn. Syst. Nat. ii. 635. 



Megaderus stigma, Dupont, Mag. Zool. 1838, pi. cxli. f. 1. 



Fusco-niger, supra rugoso-punctatus, breviter griseo- 

 setosus, subtus griseo-tonientosus; thorace magno, ro- 

 tundato ; elytris ad medium fascia angusta obliqua 

 interdum iuterrupta flavo-testacea ; tibiis tarsisque fulvo- 

 testaceis. 



Long. 6^12 lin. c? $ . 



Common on trunks of newly-felled trees throughout 

 the Amazon region, f 



* The following is a fine uew species of this genus : — 



Lissonotus princeps. 



Thorax autice ut in L. spadiceo angustatus. Nigerrimus, nitidissimus ; 

 elytris fascia sub-basnli lata, antice etpostice recta, prope humeros siuiiata, 

 nee basin nee margines laterales attiugente, Itftissime coccinea ; naeta- 

 sterno et abdumine clare saugiiineis ; pedibiis totis, coxis inclusis, niger- 

 rimis ; scutello breviori, iFquilatero-triangiilari ; elytris tnmeatis, angulo 

 exteriori valde s])iuoso ; auteunis (J cori)ore brcvioribus. 



Long. 9 lin. ^ . 



Hah. — Bolivia. A Dom. Pearce lectus. 



t The following is to be added to this genus. 

 Megaderus latifasciatus. 



M s'tiijniati forma et sculptura similliraus, sed antennis prH?cipue ? 

 robustioribus, multo brevioribus ; elytris fascia dujilo latiori et leviter 

 sinuata. 



Long. 11 lin. $ $ . 



Hah. — Chontales, Nicaragua. A Dom. Ed. Jauson, lib, nuper lectus. 

 Specimina plurima omuino conformia. 



