Staphylinid<2 of the Amazon Valley. 169 



6. P!iilo7ithus (sneiccps, n. sp. Kufus, capite feneo, niti- 

 dissimo, abdomine ante apicem nigro. Long. corp. 3g lin. 



Mas : capite majore, femoribus anticis spinulosis, abdo- 

 mine segmento 7° ventrali medio producto, ante apicem 

 leviter transversim impresso, tarsis anticis simplicibus. 



Antennse nearly as long as the head and thorax, yellow- 

 ish ; 2nd and 3rd joints about equal, 4 — 10 each a little 

 shorter than its predecessor, none of them transverse. 

 Mandibles and palpi yellowish. Head on the upper side 

 shining brassy, the front Avith a medial longitudinal im- 

 pression, on Avhich are placed two large confluent punc- 

 tures, and on each side of this with three punctures, form- 

 ing an irregular row between the eyes, and with eight or 

 ten other large pimctures on each side at the back part. 

 Thorax rather longer than broad, slightly narrowed behind, 

 the sides a little sinuate ; it is of a shining reddish-yellow 

 colour, Avith a dorsal row of five coarse punctures on each 

 side the middle, and with six or seven other large punc- 

 tures on each side, near the front. Scutellum pitchy, the 

 basal part rather coarsely punctured, the apex impunctate. 

 The broad elytra are about as long as the thorax, of a 

 shining-yellowish colour, coarsely and sparingly punc- 

 tured. The hind body is but little narroAved to the extre- 

 mity ; it is of a brownish-yellow colour, with the 5th and 

 6th segments black, the extremity of the latter and the 

 7th segment pale yellow, the hind portion of the anal styles 

 brownish ; segments 2 — 4 are sparingly and finely punc- 

 tured, 5 and 6 much more closely punctured, these latter 

 with a coarse, depressed, black pubescence. The legs are 

 yellow, the intermediate coxaj distant. 



In the male the hind portion of the ventral plate of the 

 7 th segment is produced in the middle ; the produced part 

 is truncate at the extremity, and a little transversely im- 

 pressed before this ; in front of this depression are inserted 

 six or eight fine depressed setae. 



In the female the head is only as broad as the thorax, 

 and the fi^ont femora are unarmed. 



Ega ; tAvo specimens, $ and 5 . 



7. Philonthus cognatus, n. sp. Rufus, capite feneo, niti- 

 dissimo, abdomine ante apicem nigro. Long. corp. 3s lin. 



Mas : capite majore, femoribus anticis spinulosis, abdo- 

 mine segmento ventrali apice leviter producto medio an- 

 guste sed profunde triangulariter inciso, tarsis anticis 

 simplicibus. 



