of the Amazon Valley. 369 



grey, with a large irregular brownish blotch in the middle, and 

 a stripe of the same colour on each side beneath, above the 

 sockets of the haunches. Elytra depressed, tapering from base 

 to apex, the latter obtusely and obliquely truncated; base near 

 the scutellum slightly convex ; surface punctured, pinkish ful- 

 vous or grey, silky, with a few brown spots and patches, namely, 

 one on the convex part near the scutellum ; a second, kidney- 

 shaped, on the margin near the humeral angle; a third, behind 

 the middle, extending as a large angulated blotch towards the 

 suture ; and a fourth, small and oblique, near the apex. Body 

 beneath and legs pinkish fulvous or grey; front and middle 

 thighs with dusky patches. Hind thighs gradually thickened. 

 Tarsi greatly elongated, the hind pair nearly as long as the tibiae, 

 the basal joint especially being of excessive length. 



This handsome little species was only once met with, namely, 

 flying in the evening twilight on the banks of the river at 

 S, Paulo, Upper Amazons. It cjiffers from all, other species of 

 the genus in the length of its tarsi and the slenderness of its 

 hind thighs, in which characters it approaches the genus Paroe- 

 cus; but the depressed form and general facies make it consort 

 better with Lepturges than with Parcecus. 



2. Lepturges linearis, n. sp. 

 L. linearis, fuliginosus : elytris griseo bilineatis. Long. 4 lin. S $ . 



Head sooty, with a shining olivaceous pile. Thorax with the 

 lateral spines placed near the hind angles, and forming each a 

 large acute tubercle separated by an impressed line from the 

 body of the thorax; surface with an impressed dorsal line, sooty, 

 varied with silky greyish-olivaceous pile. Elytra greatly elon- 

 gated, almost linear, sinuate-truncate at the tips, the external 

 angle of the truncature produced and acute; surface coarsely 

 but somewhat evenly punctured, sooty brown, each elytron with 

 two olive-grey vittse united before reaching the apex. Scutellum 

 grey. Body beneath and legs clothed with iron-grey pile. Legs 

 rather short; all the tbighs clavate; tarsi slender and elongate. 



Ega ; not uncommon on dry twigs in the forest. 



3. Lepturges flaviceps, n. sp. 



L. elongatus, sublinearis, niger : capita, vittis duabus thoracis, annu- 

 loque antennarum flavis. Long. 4 lin. $ . 



Head shining testaceous yellow, with two black vittse extend- 

 ing from the front of the eyes to the occiput. Antennse twice 

 the length of the body, the basal joint very greatly elongated ; 

 black, with the basal half of the fourth joint pale yellow. Thorax 

 with the lateral spines placed near to the hind angle; surface 

 behind with a transverse depression, testaceous yellow, silky. 



