Staphi/linidce of the Amazon Valley, 271 



thorax more abruptly angulated at the sides and consider- 

 ably longer, the hind tarsi more slender and rather longer. 



2. Stilicus punctatus,n. sp. Niger, antennis pedibusqiie 

 minus Ijete testaceis, illis medio palpisque leviter infuscatis; 

 thorace fortiter carinato ; elytris nigro-ffineis, nitidulis, 

 fortiter profundeque punctatis, apice testaceis. Long. 

 Corp. 2\ lin. 



Antennas short, reddish, the middle joints infuscate. 

 Palpi infuscate-reddish. Labrum large. Head broad 

 and short, very densely punctured, dull, a little shining 

 on a small place in the middle, where the punctures are 

 a little coarser. Thorax black, much angulated at the 

 sides and abruptly narrowed in front ; densely punctured, 

 with a conspicuous shining line along the middle. Elytra 

 quite as long as the thorax, distinctly brassy, Avith the 

 extremity yellow; distinctly shining, deeply and rather 

 coarsely punctured, the ])unctuation absent on the pale 

 extremity. Hind body densely punctured, a little shining. 

 Legs yellow. 



Ega ; a single female individual. 



This species is about the size of aS*. orhiculatus, and the 

 head is very similar in form thereto, but the palpi are 

 darker, with the apical joint more linear and elongate ; 

 the thorax is more angular at the sides, and the punctuation 

 of the elytra is greatly more conspicuous. From S. ama- 

 zonicus, the smaller size, differently-shaped head, shorter 

 antennas, and more coarsely punctured elytra of S. punc- 

 tatus, readily distinguish it. 



MoNiSTA (noA^ gen. Paderinorurn). 



Labrum medio emarginatum, utrinque rotundatum. 



Mandibulai breviusculas, robustje. 



Palpi maxillares articulo quarto inconspicuo. 



Prosternum post coxas parte cornea magna, sed aceta- 

 bulis posterius hand occlusis. 



Tarsi articulo tertio parvo, quarto bilobo-membranaceo. 



Genus ex affinitate Sunii, sed facie potius Lithocharidis ; 

 ab illo mandibulis, labro, et prosterni structura, ab hoc tar- 

 sorum articulo quarto, facile distinguendum. 



Body shining and sparingly punctured. Antennae 

 short and stout. Mandibles short and robust, toothed 

 in the middle. Labrum large, rounded on either side 

 so as to be emarginate in the middle. Third joint of 



