434 Mr. H. W. Bates on Gerambycidce 
? . Thorace toto rufo, lateribus tri- tuber culatis, dorso 
laevi, polite, medio foveis tribus scabrosis, tuberibus 
lasvibus marginatis et separatis ; elytris Isevissimis, basi 
late rufis ; antennis dimidium corporis paulo superantibus, 
fulvo-rufis, articulis apice leviter infuscatis. 
Long. 5-12 lin. d' $ . 
Generally distributed throughout the Amazons region. 
In newly-burnt clearings in the forest, on dead trees, 
sometimes abundant. 
It is so variable that two individuals can scarcely be 
found nearly alike. Dupont failed to notice the sexual 
diifferences in form and colours, and hence described 
them as distinct species, besides giving each variety as 
distinct. Five or six other of his species are probably 
only varieties of this. 
9. Trachyderes conformis. 
Dupont, Mag. Zool. 1838, p. 49, pi. clxiii. f. 2. 
Angustus, flavo-testaceus ; vertice thoraceque nigro- 
maculatis ; elytris apice truncatis, angulo exteriori leviter 
dentato, supra tertia parte posteriori nigra, nigredine 
ramosper marginem fere ad humeros et per suturam usque 
ad scutellum emittente ; antennis et pedibus fulvo-testa- 
ceis, illis apice infuscatis, his femoribus apice nigris. 
Long. 7-8i lin. ^ . 
Hah. — Santarem. 
Closely allied to T. dimidiatusy Fabr., the chief differ- 
ence (which is constant) being that the black colour of 
the apical portion of the elytra in dimidiatus does not 
emit a branch along the suture towards the scutellum. 
This speciality is mentioned in Fabricius^ description, 
and applies to the form from South Brazil, T. conformis 
occurs also in Venezuela . 
Genus Oxymeeits. 
Serville, Ann. Soc. Ent. Fr. 1834, p. 50 ; Lacord. 
Gen. ix. 204. 
