Staph ijlinidce of tlie Amazon Vallet/. 299 



more distinct than in S. confinis. The insect o^reatly 

 suggests by its form and colonr a Boreaphilus, and makes 

 a great approach to Stilicoj'sis paradoxus, Sachse. 



13. Sunius -peltatus, n. sp. Rufo-tcstaceus, antennis 

 pedibusque testaceis ; elytris abdominisqne segment© 5*^ 

 infnscatis, illis apice late testaceis; capite magno, sub- 

 quadrato, anteriiis dense punctate, vertice sublasvigato ; 

 thorace suborbiculato. Long. corp. If lin. 



Antenna; slender, pale yellow, shorter than head and 

 thorax, not thickened towards the extremity; 1st joint 

 elongate, about as long as the three following together ; 

 2nd joint rather slender, 3rd distinctly longer than 2nd, 

 4—10 each slightly shorter than its predecessor; 11th 

 longer, but scarcely broader, than 10th, oblique at the 

 extremity. Mandibles elongate and slender, the left one 

 with two teeth, of which the upper one is elongate. Labrum 

 much produced towards the front in the middle, the pro- 

 minent part terminating in two distinct teeth. Head 

 much larger than thorax, and even broader than the 

 elytra ; the eyes large and convex, placed in the middle of 

 the sides, the hind angles not much rounded, the vertex 

 emarginate in front of the neck ; reddish in colour, closely 

 finely and not very distinctly punctured, with extremely 

 fine interstices, the punctuation becoming obsolete in the 

 middle towards the vertex, so that in front of the emar- 

 gination it is represented only by some fine granules. 

 Thorax small, much narrower than the elytra, not longer 

 than broad ; the greatest Avidth in front of the middle, 

 thence much narrowed toAvards the front, and distinctly 

 towards the base ; reddish in colour, densely punctured, 

 with very fine interstices. Elytra rather broad and short, 

 a little longer than the thorax, infuscate, so as to approach 

 blackish in colour ; the extreme base obscurely reddish, 

 the apex broadly, and abruptly, pale yellow ; rather closely 

 and distinctly punctured. Hind body broad, very finely 

 jiimctiu-ed ; the basal segments reddish, the 5th infuscate, 

 the apical ones yellowish. Legs pale yellow. 



Ega ; a single female. 



Obs. — This species in its general form makes a distinct 

 approach to Stilicus. 



14, Sunius palpalis, n. sp. Antennis, palpis, pedibus- 

 que pallide testaceis, femoribus quatuor posterioribus apice 



