of the Amazon Valley. 373 



bling the present one greatly in markings, but differing in the 

 smaller size of the thoracic spines and in other minor features. 



10. Leptwges perelegans, n. sp. 



L. parvus, oblongo-ovatus, griseus : thorace lituris duabus nigris : 

 elytris sinuato-truncatis, griseo fuscoque lituratis. Long.2| lin. 5 . 



Head blackish. Antennse pitchy red. Thorax grey, with two 

 black vittse on the disk, and an oblique spot of the same colour 

 on each side ; lateral spines short, not distinct anteriorly from 

 the outline of the thorax. Elytra sinuate-truncate, angles of the 

 truncature not produced, surface punctured, grey, with several 

 flexuous black bands and spots, — namely, one basal, S-shaped, 

 extending from the shoulder to the suture; a second, in the 

 form of a large spot, on the side ; a third extending as a broad 

 zigzag belt across the elytra behind the middle; and a fourth, 

 comma-shaped, near the apex. Body beneath and legs dusky. 



One example ; S. Paulo, Upper Amazons. 



11. Lepturges lineatocollis, n. sp. 



L. parvus, oblongus, minus depressus, griseus : thorace supra nigro 

 quinquelineato : elytris nigro lineatis et plagiatis, apice sinuato- 

 truncatis. Long. 2 lin. (S . 



Head greyish, vertex with two dusky stripes. Antennse pitchy 

 red. Thorax with the lateral spines short and conical, placed at 

 a short distance from the hind angles; grey, with five black vittse, 

 the middle one much the broadest ; the sides of the thorax are 

 also blackish. Elytra oblong-ovate, narrowed near the apex( S ), 

 sinuate-truncate, angles of the truncature slightly produced; 

 surface slightly convex, punctured, greyish, with irregular black 

 patches near the base ; middle, sides, and apex partially connected 

 with each other by indistinct lines of the same colour. Body 

 beneath and legs dusky. 



Santarem ; on dried twigs. 



12. Lepturges fragillimus, n. sp. 



L. parvus, oblongus, minus depressus, griseus : thorace supra fusco 

 bivittato : elytris maculis circa septem fuscis ornatis, apice leviter 

 sinuato-truncatis. Long. 2\ lin. 5 . 



Head dusky or reddish. Antennse very long and thin, red- 

 dish ; apical halves of the joints (including the basal one) blackish. 

 Thorax grey ; disk with two black vittse ; sides deep black, with 



ductis et acutis ; dorse punctata, rufescentia vel brunnea, ante medium 

 fascia antice posticeque dentata latera baud attingente, pone discum 

 punctum minutum et prope apicem ad sutnram macula unciform! 

 griseo-albis. Corpus subtus rufescens, griseo tomentosum. Pedes 

 pallidiores. Long. 3j lin. ? . Hub. Cayenne. Dom. Bar legit. 



