of the Amazon Valley, 311 
Section B. Byes finely facetted. 
Sub-fam. Lepturin^. 
Genus Ophistomis. 
Thomson^ Archiv. Entom. i. 319; Lacord. Gen. viii. 451. 
1. Ophistomis hivittatus, n. sp. 
S . Gracilis, postice valde attenuatus, luteo-flavus, bre- 
viter setosus ; antennis longitudine corporis, a medio usque 
ad apicem incrassatis, nigris ; capite tboraceque nigro- 
bivittatis, crebre punctatis, illo vertice etiam nigro ; 
elytris humeris obtusis, postice incurvatim attenuatis, 
apice oblique truncatis et bidentatis, supra passim punc- 
tatis, punctis setiferis, setis incumbentibus, sutura, mar- 
gine basali, macula lateral! apud medium, fasciisque 
duabus posticis (secunda apicali), nigris ; femoribus apice, 
tibiis tarsisque nigris ; abdomine rufo, coxis posticis et 
metasterni episterno nigro-maculatis. 
$ a valde difiert. Robustior, humeris multo 
latioribus, fulvus ; antennis dimidium corporis paulo 
superantibus, articulis 5 basalibus fulvis, reliquis nigris, 
incrassatis; capite tboraceque nigro-bivittatis, crebre 
punctatis, hoc linea dorsali laevi; elytris humeris latis 
rotundatis, postice recte attenuatis, apice oblique trun- 
catis et bidentatis, supra punctulatis et setosis, utrinque 
sutura, maculis tribus discoidalibus, alterisque duabus 
minoribus juxta humeros, nigris; pedibus fulvo-rufis, 
apicibus femorum tibiarumque posticarum, et tarsis 
nigris. 
Long. 7 lin. ^ $ . 
Hah. — Ega; many examples. 
Like all other species of Ophistomis, it is found in the 
forest, slowly flying about the underwood in fine weather, 
and settling on the slender stems of climbing and other 
plants ; sometimes the species are seen on flowers. 
2. Ophistomis paraens'is, n, sp, 
S . 0. hivittato valde affinis, differt colore magis 
fulvo, et elytris apice liaud nigro-fasciatis. Gracilis, 
z 2 
