StaphjUnidcp. of the Amazon Valley. 199 



scribed, and it is in tliis part of the world that the largest 

 and most brilliant of the forms included in the genus are 

 found. 



1. Staphjlinus rutilus, Perty. 



Para, Ega, Tapajos. 



The fine series brought back by IMr. Bat^s _ot tins 

 species show that it varies much in size, large individuals 

 being 9 lin. in length, and the smallest only about 5 lin. ; 

 the yellow colour of the extremity of the hind body is m 

 the larger individuals nearly entirely absent. 



2. Eulissus Manner hei mil, Lap. 



Para, Tapajos, Ega. 



This species, recorded hitherto only from Cayenne, ap- 

 pears to be not uncommon in the Amazon valley. 



3. Xantholinus hicolor, n. sp. Fulvus, nitidus, capite 

 nio-errimo, minus crebre punctato, medio Itevi ; prothorace 

 se?ie dorsali subtiliter bi- vel tri-punctato, propeque angulos 

 anteriores parce punctato; elytris subtiliter punctatis. 

 Long. Corp. 7 lin. 



Slio-htly larger than .Y. rjlabratus, of a shining-tawny 

 colon?, elytra rather ]ialer and the head black. Antenna? 

 with the three basal joints dark red, the rest pitchy ; the 

 nth joint yellowish at the extremity; 3rd joint nearly 

 twice as long as 2nd; joints 4—10 scarcely differing from 

 one another in length, and only very slightly m width, 

 transverse; 11th joint pointed, about twice as long as the 

 10th. Palpi reddish. Mandibles short, stout, black, 

 pitchy at the base ; labrum considerably advanced, rounded 

 in front, with a deep narrow division in the middle, appa- 

 rently entirely horny. Head rather broader than the 

 thorax, about as broad as the elytra, a little narrowed m 

 front, black and shining, the disc impunctate ; the sides 

 and the under surface "sparingly and rather finely punc- 

 tured. Thorax rather narrower than the elytra, consider- 

 ably longer than broad, narrowed behind, very shming 

 reddi^i-tawny ; a little in front of the middle on each side 

 is a single puncture, and behind this 1—3 others ; there 

 are also five or six larger punctures near the front angle 

 on each side. Scutellum obsoletely punctured. Elytra as 

 lono- as the thorax, yellow, rather sparingly and finely 

 punctured, the punctures arranged m indistinct lines. 



