Staphylinida of the Aviazo7i Vallci/. 243 



has the elytra long-er, and the underside of the hind body 

 more coarsely punctured and more shining. 

 Tapajos ; a single female. 



20. Lathrohium pictum, n. sp. Rufescens, nitidulum, 

 capite, elytrorum parte basali, abdominisque apice summo 

 infuscatis, pedibiis testaceis ; capite parcius punctato, disco 

 Iffivi. Long. Corp. 2 lin. 



Mas latet. 



Antenna? nearly as long as head and thorax, yellow, 

 with the middle joints darker; 3rd joint slightly longer 

 than 2nd. Head rather short and broad, reddish, but 

 infuscate, sprinkled with rather coarse punctures, which 

 leave a space across the middle free. Thorax shining red, 

 oblong, longer than broad, a little rounded at the sides, 

 with two rows of about seven punctures along the middle, 

 and also with a few punctures on each side, near the front 

 part. Elytra about as long as, but distinctly broader than 

 the thorax; their apex pale yellow, the base reddish, along 

 the middle of each a dark patch ; shining, very obsoletely 

 and sparingly punctured, the punctures consisting of a 

 sutural series and some extremely indistinct serial punc- 

 tures near the sides. Hind body reddish, a little dilated 

 in the middle, closely and finely but a little roughly punc- 

 tured, a little shining, the apical segment infuscate. Legs 

 pale yellow. Underside of head sparingly and finely punc- 

 tured, very shining ; imderside of hind body rather closely 

 and somewhat coarsely punctured, but shining. 



Amazons ; a single female, without special locality. 



This insect bears an extreme resemblance to L. infe- 

 r/rum, but has the head shorter in proportion to the Avidth, 

 and the hind tarsi considerably shorter. 



21. Lathrohium liilare, n. sp. Rufo-testaceum, niti- 

 dulum, elytrorum parte basali capiteque nigricantibus ; 

 capite disperse fortiter punctato, medio absque punctis ; 

 elytrorum apice pedibusque flavis. Long. corp. 2 lin. 



Mas : abdomine segment© 7° ventrali apice medio ex- 

 cisione minus profunda, ante excisionem impressione parv^a; 

 6" medio semicirculariter minus profunde exciso, utrinque 

 angulato. 



Antennae moderately long, reddish-yellow, the middle 

 joints a little more obscure ; 3rd joint a little longer than 

 2nd. Head red, suffused with black, the neck red ; it is 



r2 



