22 INIr. David Sharp on the 



is sparingly and finely punctured, and has also some coarse 

 punctures at the back about the hind angles. Thorax 

 nearly as long as it is broad behind, its Avidth there about 

 that of the elytra ; it is a little narrowed in front, but not 

 rounded at the sides; it is extremely shining, finely and 

 obsoletely punctured, without any discoidal punctures. 

 The scutellum is coarsely and closely punctured ; elytra 

 about as long as the thorax, shining black, sparingly but 

 very strongly punctured ; the pubescence very scanty and 

 indistinct. Hind body rather robust, only moderately 

 narrowed towards the extremity, the apical segments pitchy 

 at their extremities, its punctuation close, deep and coarse. 

 The legs are pitchy black. The under surface strongly 

 punctured. 



Under dead leaves. Copper Temple, Nagasaki, a single 

 examjile only. 



Algon, no v. gen. ( Quediini). 



Antennte rects. 



Palpi maxillares articulo ultimo oblongo, labiales articulo 

 ultimo securiformi. 



Pedes intermedii contigui. 

 Tarsi 5-articulati. 



The remarkable insect for Avhicli this genus is estab- 

 lished, is just intermediate in facies between Quedius and 

 Ocyjms. The structure of its thorax is altogether that of 

 the Quedii, and its natural position is between Quedius 

 and Astrajjceus. The labrum is deeply emarginate in the 

 middle and has a large membranous appendage in front. 

 Tlie mandibles are broad and robust, bisinuate (rather 

 than toothed) on the inner side. The 3rd joint of the 

 maxillary palpi is much shorter than the 2nd and con- 

 siderably narrower at the base than at the extremity ; the 

 4th joint is longer than the 3rd. Last joint of the labial 

 j)alpi very dilated and strongly securiform. Head broad 

 and flat, abruptly constricted behind so as to form a com- 

 paratively narrow neck. Thorax with the upper marginal 

 line iminterrupted throughout its circumference, and limit- 

 ing the front angles as seen from above ; the margin 

 beneath furnished with a parchment-like stigmatic mem-' 

 brane. 'Anterior tarsi dilated, but not so patellated as in 

 Quedius or Astropceus. The middle tibiae strongly spined ; 

 the basal joint of the four posterior tarsi about as long as 

 the three following together. Anterior and middle coxse 



