Staj)hr/Unidce of the Amazon Vallei/. 281 



Legs pale yellow; front tibite short, distinctly dilated 

 toAvards the extremity ; their tarsi short and slender. 



Tapajos ; a single individual, of doubtful sex. 



Obs. — The different shape of the head, more slender 

 antennas, and the differently-formed front tibire and tarsi, 

 readily distinguish this species from E. tibialis ; the indi- 

 vidual described is perhaps somewhat immature. 



10. Echiaster scissus, n. sp. Testaceus, dense punc- 

 tatus, opacus, elytrorum a])ice medio, abdominisque apice 

 fuscescentibus ; capite lateribus curvatis, oculis minoribus; 

 prothorace lato, suborbiculato, profunde bisulcato. Long. 

 Corp. (vix extenso) 1} lin. 



Antennas rather slender ; 1 st joint stout and short, 2nd 

 stout, 3rd and 4th very small, 6 — 1 each a little broader 

 than its predecessor, 9 and 10 distinctly transverse, lltli 

 rather short and stout. Head slightly broader than thorax, 

 a good deal narrower than the elytra ; the eyes small, the 

 sides behind the eyes greatly rounded; the neck very 

 slender, the middle of the surface much elevated, so that 

 the vertical portion appears much depressed ; yellow in 

 colour, quite dull, densely and indistinctly punctured. 

 Thorax short, about as long as broad, greatly narrower 

 than the elytra, rounded at the sides, with two deep longi- 

 tudinal impressions, so as to make it appear tricar inate, 

 densely and indistinctly punctured, quite dull. Elytra 

 much longer than the thorax, rather broad, yellow, with 

 an infuscate patch in the middle at the extremity, densely 

 punctured, quite dull. Hind body rather broad, the basal 

 segments rather coarsely punctured, the 6th segment 

 conical. Legs pale yellow; front tibiae moderately broad, 

 slightly sinuate. 



Tapajos ; a single specimen. 



Obs. — The small eyes readily distinguish this species 

 from all the others here described. 



LiNDUS (nov. gen. Pcedeinnorum). 



Palpi maxillares articulo tertio magno, subsecuriformi, 

 articulo quarto occulto. 



Mandibulte perelongatoe, tcnues, valde curvatas, eden- 

 tatae. 



Tarsi anteriores fortiter dilatati, posteriore articulo 

 quarto simplice. 



