of the Amazon Valley. 311 



Section B. Eyes 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 ; an tennis longitudine corporis, a medio usque 

 ad apicem incrassatis, nigris ; capite thoraceque 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 laterali apud medium, fasciisque 

 duabus posticis (secunda apicali), nigris ; femoribus apice, 

 tibiis tarsisque nigris ; abdomine rufo, coxis posticis et 

 metasterni episterno nigro-maculatis. 



? a c? valde differt. Robustior, humeris multo 

 latioribus, fulvus ; antennis dimidium corporis paulo 

 superantibus, articulis 5 basalibus fulvis, reliquis nigris, 

 incrassatis; capite thoraceque 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 paraensis, n. sp, 



S. 0. hivittato valde afiinis, diff'ert colore magis 

 fulvo, et elytris apice haud nigi'o-fasciatis. Gracilis, 



z 2 



