Stajthylinidoi of the Amazon Valley. 2G1 



or line along the middle. Elytra distinctly longer than 

 the thorax, and rather darker in coloiir, very densely, 

 finely and indistinctly punctured, quite dull. Hind body 

 rather slender, very densely and finely punctiu'cd. Legs 

 yellow; front tarsi rather short, distinctly dilated; 4th 

 joint of hind tarsi small, simple. 



The male has a very slight emargination at the extremity 

 of the ventral plate of the 7th segment of the hind body. 



Ega ; two individuals. 



10. Lithncharis compressn, n. sp. Depressa, ferruginea; 

 crebre subtiliter punctulata, subopaca. Long. corp. 1 1 lin. 



Antenna3 short, red, scarcely at all thickened towards 

 the extremity ; 10th joint slightly transverse. Head large 

 and flat, quite as broad as the elytra, reddish, finely 

 and closely punctured, the vertex distinctly emarginate. 

 Thorax rather narrower than the elytra, rather broader 

 than long, distinctly narrowed behind, reddish ; extremely 

 finely pimctured, with an extremely fine channel near the 

 base, and a very indistinct impression at the base on each 

 side of the middle. Elytra a good deal longer than the 

 thorax, closely and finely punctured, inftiscate-reddish. 

 Hind body reddish, densely and finely punctured. 



Anana ; a single female taken by Dr. Trail on the 6th 

 September, 1874. 



Obs. — This species greatly resembles X. integra, and 

 appears structurally closely allied thereto, but it is smaller 

 and more depressed, and has the surface less densely punc- 

 tured, so that it is less opaque. 



11. TAthocharis disccdens, n. sp. Ferruginea, elytris, 

 antennis, pedibusque rufescentibus, opaca, dense punctata ; 

 cajnte thoraceque dense rugulose punctatis, hoc basi qua- 

 dripunctato ; elytris dense minus distincte, dorso biseri- 

 atim punctatis. Long. corp. 2 lin. 



Antenna? reddish, fully ^ lin. in length ; 2nd, 3rd and 

 4th joints about equal to one another, 5 — 10 each a little 

 shorter than its predecessor, 9 and 1 scarcely so long as 

 broad. Labnmi slightly emarginate in the middle, with- 

 out teeth. ISIandibles red, each with three teeth ; the 

 middle tooth on the left mandible very small, on the right 

 one longer than the others. Head broad and short, very 

 densely and rugosely punctured, the punctures finely ocel- 

 lated, the interstices very fine. Thorax almost as long as 



