828 Mr. D. Sharp's revision of the 



as long as the three following together, the 2nd slightly 

 more slender than the 1st, and not quite half its length ; 

 3rd more slender and a little shorter than 2nd ; 4th to 8th 

 similar to one another, each about as long as broad ; 

 9th slightly larger, also about as long as broad ; 10th 

 broader, transverse ; terminal joint elongate and much 

 pointed. Head with rather large eyes, and with a 

 rather closely punctate vertex. Thorax not quite so long 

 as broad, much narrowed behind, its surface with rather 

 deep and distinct, but not close, punctures. Elytra only 

 sparingly and indistinctly punctate. The larger size, 

 more elongate basal joint to the antennae, and obsolete 

 punctuation of the elytra make the species easily dis- 

 tinguished from such others as have yet been found in 

 Japan. 



Nagasaki, June 1st, 1881. 



Pselaphus. 



Pselaphus debilis, n. s. 



Depressus, latiusculus, subopacus, piceo-rufus, an- 

 tennis pedibusque runs, palpis testaceis, articulo ultimo 

 apice breviter clavato ; elytris quasi carinatis, seriebus 

 duabus setarum. Long. l£ mm. 



Very similar in size and form to Pselaphus revelieri, 

 though very different structurally, the margin of the 

 hind body being flat and not elevated, and the elongate 

 basal segment only about half as long as in P. revelieri ; 

 the maxillary palpi are excessively elongate and slender, 

 with a small but rather abrupt club at the extremity. 

 Head opaque, being densely and finely coriaceous. 

 Thorax also opaque, small, rather broad (for this genus), 

 though scarcely so broad as long, very evidently foveate 

 in front of the base. Elytra narrow at the shoulders, 

 greatly broader behind, not shining, but not so dull as 

 the front parts ; the suture slightly carinate, and each 

 with two longitudinal ridges of very minute setae, the 

 outer margin with an obscure series of setae. Hind body 

 with a few distant setae. 



Mr. Lewis has found a pair of this species near Suwa 

 Temple, the male on the 11th, the female on the 13th, 

 April, 1881 ; the male is rather smaller and paler than 

 the female, and has the apex of the metasternum 



