StaphylinidcB of the Amazon Valley. 167 



3. Philonthus deletus, n. sp. Rufo-testaceus, nltidus, 

 capite elytrisque obscurioribus, horum apice, antennis pedi- 

 busqne testaceis ; prothorace subtiliter multipuiictato, liuea 

 lata media lasvi. Long. corp. 2 lin. 



Quite of the structure of P. jn-olixus. Antennae yellow, 

 rather stout; 3rd joint about equal to the 2nd ; 10th joint 

 scarcely so long as broad. Head dark reddish, about as 

 broad as the thorax, rather finely and not closely punc- 

 tured, the middle part impunctate. Thorax narrower than 

 the elytra, one and a-half times as long as broad, scarcely 

 narrowed behind, the sides a little sinuate ; it is of yellow- 

 ish colour, shining, a broad middle space impunctate : the 

 sides pinictured, the punctuation not deep and not very 

 close. Scutellum yellowish, very finely and indistinctly 

 punctxired. Elytra rather longer than the thorax, fuscous ; 

 the apex pale yellow, finely and rather sparingly punc- 

 tured. Hind body yellowish, not narrowed to the extre- 

 mity, its punctuation and pubescence extremely fine and 

 not dense. Legs yellow, rather stout. 



The male has a moderately large notch at the extremity 

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

 and the hind margin of the 6th segment is slightly emar- 

 ginate. 



Tapajos ; four individuals. 



4. Philonthus tmiticus, n. sp. Depressus, obscure rufo-tes- 

 taceus, capite abdomineque nigricantibus, hoc crebre subti- 

 liter punctato, apice testaceo, prothorace serie dorsali 

 5-punctato ; coxis intermediis distantibus, tarsis anticis 

 omnino simplicibus. Long. corp. 31 lin. 



Mas : capite majore, abdomine segmento 7° ventrali apice 

 leviter emarginato. 



This species resembles greatly5e/«nMc/i?^5 cequalis ^hniho^'?, 

 the anterior and posterior femora entirely without spines, ex- 

 cept the three or four at the extremity of the front femora 

 found in most species of Philonthus. The antennse are 

 inserted quite at the anterior margin of the fi'ont, which is 

 not at all produced in the middle ; they are a little shorter 

 than the head and thorax, the three loasal joints reddish, 

 the rest infuscated ; the 3rd joint longer than the 2nd, the 

 10th about as long as broad. The mandibles and palpi 

 are reddish. The head is blackish, Avith two points on 

 each side near the front, at the inner side of the eyes, and 

 between these with a punctiform longitudinal impression, 

 and Avith several other punctures on each side, near the 



