St/iphi/IinidfP. of the Amazon Vdllcij. 409 



obtuse projections, and behind these much cut away at 

 the hind angles; the surface covered with coarse dense 

 punctures, so that the interstices are very narrow. 

 Elytra rather broader and a good deal longer than the 

 thorax, each with seven fine, raised, longitudinal lines, of 

 which one is close to the suture and indistinct, and the 

 outer one most distinct ; the spaces between these lines 

 marked with transverse lines, which are irregular, and 

 represent a coarse confluent punctuation. Hind body 

 coarsely punctured, the punctuation becoming more in- 

 distinct on the apical segments, which also are paler in 

 colour. Metasternum coarsely, closely and deeply punc- 

 tured throughout. Legs reddish ; tarsi short, pubescent 

 beneath, the basal joint of each distinctly broader than the 

 others. 



St. Paulo ; two individuals, of uncertain sex. 



Hypotelus. 



Only fom' species have yet been described as forming 

 part of this genus ; one from Kansas, and the others from 

 tropical America ; to these I now add a fifth species. It 

 is probable that the genus, like Piestus, is one of the 

 forms characteristic of the South American fauna. 



I feel considerable doubts whether the species should at 

 present be separated from Piestus. The two genera are 

 extremely close in their general structure, and the only 

 characters given to distinguish them are drawn from the 

 troplii ; but as the oral organs are subject to an excessive 

 difference of development Avithin the bounds of the genus 

 Piestus, and as the comparison of these parts rests, so far 

 as I know, on the examination of a single species of each 

 genus, it is clear enough that the individuality of the 

 genera has not yet been properly determined. 



1. Hypotelus micans, n. sp. Piceo-rufus, nitidus, an- 

 tennis pedibusque rufo-testaceis; elytris stramineis, sutura 

 epipleurisque infuscatis ; capite thoraceque sat crebre, 

 distincte, elytris parcius obsoletiusque punctatis. Long, 

 corp. 1 lin. 



Antennae reddish, not thickened at the extremity ; 3rd 

 joint much shorter than 2nd ; 4tli joint small ; 5th to 10th 

 broader than the preceding joints, differing little from one 

 another, each subquadrate. Head rather small, dark 

 reddish, shining, rather sparingly but quite distinctly 



