Staphi/Unidce 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,r\. sp, Niger, antennis pedibusque 

 minus Itete testaceis, illis medio palpisque leviter infuscatis ; 

 thorace fortiter carinato ; elytris nigro-feneis, nitidulis, 

 fortitcr profundeque punctatis, apice testaceis. Long. 

 Corp. 2^ lin. 



Antennfe 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, Avhere the punctures are 

 a little coarser. Thorax black, much angulated at the 

 sides and abruptly narrowed in ii"ont; densely punctured, 

 with a conspicuous shining line along the middle. Elytra 

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

 extremity yellow; distinctly shining, deeply and rather 

 coarsely punctured, the punctuation absent on the ]>ale 

 extremity. Hind body densely punctured, a little shining. 

 Legs yelloAV. 



Effa : a single female individual. 



O -4 ^ 1 



This species is about the size of S. 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 

 antenntp, and more coarsely punctured elytra of S. pnnc- 

 tatiis, readily distinguish it. 



MoNiSTA (noY. gen. PcEiJerinorum). 



Labrum medio emarginatum, utrinque rotundatum. 



JNIandibulie breviuscula3, robustte. 



Palpi maxillares articulo (juarto inconspicuo. 



Prosternum post coxas jmrte cornea magna, sed aceta- 

 bulis posterius baud occlusis. 



Tarsi articulo tertio parvo, quarto bilobo-membranaceo. 



Genus ex affinitate Sunii, sed facie potius LitJiocliaridis ; 

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

 sorum articulo quarto, facile distingucndum. 



Body shining and s])aringly punctured. Antennas 

 short and stout. INIandibles short and robust, toothed 

 in the middle. Labrum large, rounded on either side 

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



