Staphyliniilce of the Amazon Valley. 241 



tato; thorace subtlllter punctulato; elytris fere impiinctatis. 

 Long. Corp. \\ lin. 



Smaller than L. longulum, parallel, shining yellow. 

 Antenna about as long as head and thorax. Plead quite 

 as broad as the elytra, straight at the sides and rather 

 long, the sides sparingly and rather strongly punctured, 

 the middle part impunctate ; it is rather darker in colour 

 than the rest of the insect. Thorax rather narrower than 

 the elytra, longer than bi-oad, shining yellow, with a line 

 of very fine punctures along each side of the middle, and 

 some other extremely fine punctures about the sides. 

 Elytra rather longer than the thorax, pale yellow, scarcely 

 visibly punctiired. Hind body scarcely punctured. 



Ega ; one specimen ( I believe a $ ). 



The shining, almost impunctate, hind body renders this 

 a very easily distinguished species. 



17. Lathrobium necatian, n. sp. Pallide testaceum, 

 nitidulum, minus elongatum, an tennis brevibus, abdomine 

 subtiliter minus crebre punctato. Long. corp. 1 ^ lin. 



Mas : abdomine segmento 7" ventrali apice excisione 

 parva triangulari. 



The smallest species of the genus I have seen. Antennce 

 short, yellow ; 2nd joint scarcely longer than 3rd, the fol- 

 lowing joints bead-like, little longer than broad. Head 

 shining yellow, sparingly punctured, with the middle part 

 impunctate. Thorax about as long as broad, shining 

 yellow, Avith two rows of fine punctures along the middle ; 

 the sides sparingly punctured. Elytra scarcely longer 

 than the thorax, pale shining yellow, almost impunctate. 

 Hind body very finely, sparingly punctured, the apical 

 segments more sparingly than the basal ones. Legs pale 

 yellow. 



The male has a small notch at the extremity of the 

 7 th ventral plate of the hind body ; this notch is quite 

 pointed in front. 



Tapajos ; eight individuals. 



This species is smaller than L. chloroticum, and is 

 readily distinguished by the much less elongate form of 

 the ft-ont parts. 



18. Lathrohium deletum, n. sp. Rvifo-testaceum, elytris 



TRANS. ENT. SOC. 1876. — PART II. (.JUNE.) R 



