Staphylinidce of the Amazon Valley. 7 1 



till the 5tli, which is quite black ; the 6th and 7th brig-ht- 

 oranjre; segment 2 almost impunctate ; the 3rd rather 

 sparingly and moderately finely, the 4th-7th evenly and 

 distinctly, but not densely, punctured. Legs yellow. ^ 



Eo-a ; two specimens, one of which I have ascertained 

 by dissection to be a male, while the other I suppose to be 

 a female. The male carries no external mdication ot its 

 sex ; the dorsal and ventral plates of the 7th segment are 

 both truncate, with the angles rounded, and without visible 

 crenulations. 



4. Aleochara mundana, n. sp. Ferruginea, capite abdo- 

 mineque (apice excepto) nigricantibus ; crebre sat lortiter 

 punctata ; elytris thorace brevionbus. Long. corp. 2 g— 

 2| lin. 



Similar in build to A. tristis, but rather larger, very 

 differently coloured. Antennae tawny, the 3rd joint a little 

 longer than the second, 4th short and transverse, 5th con- 

 siderably broader than the 4th ; after this the joints become 

 no broader, each markedly transverse ; the last joint twice 

 as long as the preceding. Palpi tawny. ^ Head black, 

 half the width of the thorax, moderately distinctly punc- 

 tured, with a weU-marked yellow pubescence, ihorax 

 tawny, nearly twice as broad as long, a little narrowed m 

 front, rather closely and finely punctured, with a yellow 

 pubescence. Elyti^a tawny, very short, considerably shorter 

 than the thorax, rather closely and finely punctured. Mind 

 body tawny black at the base, darker till the 5th segment, 

 which is quite black; the 6th segment (except the base) 

 and the 7th orange-coloured; rather closely punctured, 

 the basal segments more finely than the apical ones; 

 scarcely narrowed tiU the 6th segment. The legs are 



This is probably a very common species in the Amazon 

 district, extending from Para to Ega. I have five speci- 

 mens before me, coming fi-om Para, Tapajos and Ega ; 

 one of them bears a ticket,—" in dung." 



Obs.— This species, though very closely alhed to A.au- 

 ricoma, is easily distinguished therefrom; it is a little 

 smaUer, and its colours are not quite so brightly con- 

 trasted; the antennae are paler and less stout than m 

 A. auricoma, and the punctuation of the upper surface is 

 a little finer and closer. There are no external marks ot 

 the sexes to be seen. 



