StaphylinidcB of tJie Amazon Valley. G3 



short ; the three or four basal segments yellow ; the fol- 

 lowing three abruptly black, the extremity infuscate- 

 yellow ; the segments are finely and rather closely punc- 

 tured, the apical ones not so densely, however, as the 

 basal ones. The legs, including the coxa?, are pale 

 yellow. 



Garrao ; five individuals found in fungus by Dr. Trail 

 on the 11th November, 1874. I see no indications of 

 external sexual characters. 



Obs. — This species is similar in size and form to our 

 European H. celata, but the colouration is rather that of 

 GyrophcencB. The genaj are finely margined ; the middle 

 coxffi quite separated ; the metasternum is much produced 

 between them, and is separated only by a narrow space 

 from the extremity of the mesosternal process, the extre- 

 mities of both processes being rounded ; the middle tarsi 

 are 5-jointed, the basal joint a little longer than the 2nd ; 

 2 — 4 about equal to one another ; hind tarsi Avith the 2nd 

 joint a little shorter than the 1st, and the 3rd a little 

 shorter than the 2nd, slightly longer than the 4th. 



4. Homalata yilva, n. sp. Testacea, elytris abdo- 

 mineque cingulo ante apicem nigricantibus ; prothorace 

 transverso, basi rotundato; abdominebasi crebre subtiliter, 

 apice parce punctato. Long. corp. | lin. 



Antennas moderately long and stout, yellow ; 3rd joint 

 shorter and more slender than 2nd ; 4th joint very small ; 

 5th a good deal larger than 4th; 6 — 10 each slightly 

 shorter and broader than its predecessor, the 6th about as 

 long as broad, the 10th rather strongly transverse ; 11th 

 joint large, longer than the two preceding ones together. 

 Head short and broad, a good deal narrower than the 

 thorax ; dark yelloAv, very finely punctured, not shining ; 

 the eyes large. Thorax strongly transverse, nearly as 

 broad as the elytra, the sides slightly narrowed behind, the 

 base much rounded; it is yelloAv in colour, not at all 

 shining, very finely punctured, without channel or fovea. 

 Elytra short, but a little longer than thorax, infuscate ; 

 the base paler, finely and closely punctured, quite dull ; 

 the hind margin straight. Hind body yellow, with the 

 5th segment black ; the basal segments finely punctured, 

 the sixth nearly impunctate. Legs pale yellow. 



In the male the dorsal plate of the 7th segment of the 

 hind body is deeply emarginate on each side, so as to form 



