426 STAPHYLINIDA^ 



the teeth less distant from one another, the margin between 

 the middle and lateral teeth more deeply arcuate, only the 

 sides and parts of the base of the thorax distinctly alutaceous, 

 the disc at most with a few feeble alutaceous patches and not 

 uniformly conaceous as in P. poseAdon. 



Mt. Murud, 7000—7200 feet, several specimens. 



Priochirus (Triacanthochirus) difficilis n. sp. 



Black, shining, depressed; median tooth pointed, slightly 

 projecting beyond the level of the lateral. Antennee with 1st 

 joint emarginate at apex, the penultimate joints slightly 

 transverse. Thorax transverse, slightly narrowed in front, 

 not alutaceous, the sides punctured nearly to the lateral 

 margins, the base completely bordered. Elytra distinctly 

 longer than the thorax. Abdomen finely biserially punctured, 

 apex sometimes red. Legs black. Length 8—9 mm. 



About the size and build of P. dorire Heller, but the frontal 

 teeth are all shorter, the thorax narrowed in front and 

 completely bordered behind. The antennre scarcely differ 

 from those of P. doria. 



Mt. Murud, 5000-6000 feet, 3 specimens. 



Priochirus (Triacanthochirus) parvidens n. sp. 



Black, shining, depressed; the front 3-dentate, the median 

 tooth minute, the lateral very small ; frontal impression twice 

 as broad as long, vertex sulcate. Antennse with the 4th joint 

 scarcely longer than broad, 5th and 6th as long as broad, 7th 

 to 10th transverse. Thorax distinctly transverse, the sides 

 parallel and with a row of small punctures separated by a 

 smooth space from the lateral margin, base not completely 

 margined, disc not alutaceous. Elytra a good deal longer 

 than the thorax, Abdomen finely and sparingly punctured. 

 Legs red. Length 8 mm. 



Near P. suhtridens Heller, but narrower, the median tooth 

 minute, more pointed, the frontal impression shorter and 

 broader, the abdomen less punctured and legs red and some- 

 times the apex of abdomen. 



Mount Murud, 5000-6000 feet, several specimens. 



