438 Mr. H. W. Bates on Gerambycidos 
7. Lissonotus simplex y n. sp. 
L, higuttato forma similis ; niger^ femoribus, processu 
mesosterni, metasterno toto, abdomineque rufo-ferru- 
gineis ; elytris immaculatis,, apice late truncatis, angulo 
exterior! spinoso. 
Long. 6 lin. ? . 
Hah. — Villa Nova. * 
Sub-fam. Megaderin^. 
Genus Megaderus. 
Latreille, Reg. An. (ed. ii.) v. Ill ; Lacord. Gen. ix. 216. 
1. Megaderus stigma. 
Ceramhyx 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-tomentosus ; tborace magno, ro- 
tundato ; elytris ad medium fascia angusta obliqua 
interdum interrupta flavo-testacea ; tibiis tarsisque fulvo- 
testaceis. 
Long. 6J-12 lin. S ? • 
Common on trunks of newly-felled trees throughout 
the Amazon region. | 
* The following is a fine new species of this genus 
Lissonotus princeps. 
Thorax antice ut in L. spadiceo angustatus. Nigerrimus, nitidissimus ; 
elytris fascia sub-basali lata, antice et postice recta, prope humeros sinuata, 
nec basin nec margines laterales attingente, laetissime coccinea ; meta- 
sterno et abdomine dare sanguineis ; pedibus totis, coxis inclusis, niger- 
rimis ; scutello breviori, asquilatero-triangulari ; elytris truncatis, angulo 
exterior! valde spinoso ; antennis S corpore brevioribus. 
Long. 9 lin. ^ . 
Hah. — Bolivia. A Dom. Pearce lectus. 
t The following is to be added to this genus. 
Megaderus latifasciatus. 
M. stigmati forma et sculptura simillimus, sed antennis praecipue $ 
robustioribus, multo brevioribus ; elytris fascia duplo latiori et leviter 
sinuata. 
Long. 11 lin. d' ? • 
Hah. — Chontales, Nicaragua. A Dom. Ed. Janson, fil., nuper lectus. 
Specimina plurima omnino conformia. 
