of the Amazon Valley. 375 



15. Lepturges musculus, n. sp. 



L. parvus, oblongo-ovatus, minus depressus, postice apicem versus 

 rotundato-attenuatus, fuHginosus : elytris obscure griseis, punctis 

 fuliginosis sparsis : corpora subtus rufo. Long. 2:j lin. S • 



Head blackish ; labruni hirsute. Antennse dull black. Thorax 

 sooty black, with obscure greyish pile, which leaves two abbre- 

 viated oblique vittse on the disk, of the sooty ground-colour ; 

 lateral spines placed near the hind angles, short, porrect, or 

 standing out from the sides of the thorax. Elytra oval, apex 

 briefly and obliquely sinuate-truncate ; surface dull grey, sprin- 

 kled with small soot-coloured spots, some of which unite to form 

 patches ; in some specimens there is also a whitish speck on the 

 side of each elytron near the middle. Body beneath, coxse, and 

 base of the thighs reddish ; legs dusky. Tarsi shorter than 

 usual in this genus ', the basal joint of the hind foot, however, is 

 as long as the two following taken together. 



S. Paulo, Upper Amazons ; flying, in the evening, on the 

 banks of the river. 



16. Lepturges deliciolus, n. sp. 



L. parvus, oblongus, carneo-griseus, fusco Isete variegatus : antennis 

 pedibusque testaceis, nigro maculatis. Long. 1| lin. c? . 



Head dusky or reddish. Antennse reddish testaceous, tips of 

 the joints (from the third) blackish. Thorax reddish (black on 

 the sides), clothed with pinkish or tawny-grey pile, and varied 

 with four arcuated streaks or vittse of a reddish-brown hue; 

 lateral spines placed a short distance from the hind angles, and 

 bent posteriorly, as in Leiopus. Elytra oblong, narrowed behind 

 towards the apex, briefly sinuate-truncate, angles of the trunca- 

 ture slightly prominent j surface punctured, pinkish or tawny 

 grey, varied with numerous reddish-brown spots, — namely, one, 

 angular, over the shoulder; a second, transverse, near the su- 

 ture behind the scutellum ; three, oblong-linear, in an oblique 

 row across the elytron before the middle ; a sixth, N-shaped, on 

 the disk behind the middle; and a seventh, minute, near the 

 apex. Body beneath and legs reddish testaceous ; tips of femora, 

 tibiae, and tarsi dusky. 



This very pretty little species occurred only at Santarem, on 

 dry twigs on the borders of woods. 



17. Lepturges angustatus, n. sp. 



L. parvus, angustatus, postice attenuatus, nigricans : elytris maculis 

 linearibus obscure griseis. Long. 2\ lin. c? • 



Head and antennse black. Thorax black, with obscure grey 

 pile and a faint grey dorsal line; lateral spines acute, placed 

 almost coincident with the hind angles. Elytra elongated, nar- 



