Staphylinidoi of Japan. 85 



part of the head is not concave, but is distinctly bisulcate. 

 The thorax is quite as long as broad (much longer than 

 in circidaris), considerably rounded at the sides, very 

 densely jninctured, the disc -svith an indistinct channel or 

 fovea. The elytra are longer and much broader than 

 the thorax, coarsely and closely punctured. The hind 

 43ody is formed as in circularis, very pointed at the ex- 

 tremity, the segments greatly imjiressed at the base ; its 

 punctuation is indistinct. The legs are yellow, the hind 

 tarsi long and slender. 



Besides the colour of the antennae the male is distin- 

 guished from the female by a slight emargination of the 

 hinder edge of the ventral plate of the 7 th segment of the 

 hind body. 



Half-a-dozen specimens. 



155. Stenus riigipennis, n. sp. S. impresso affinis, sed 

 fortiter magis rugoso-punctatus. Nigro-ajneus, subnitidus, 

 pedibus flavis, antennis palpisque testaceis, apice infuscatis; 

 prothorace disco ina^quali. Long. 2 lin. 



This species is in structure and colour closely allied to 

 S. impressus, but is quite differently sculptured. The 

 antenn;^ are not so long as in impressus ; they are yellow, 

 with the basal joint black, and the club a little infuscate ; 

 the palpi are yellow ; with their apical joint a little infuscate. 

 Head formed as in impressus, but equally punctured all over, 

 the ])unctures being scarcely more remote on the middle 

 elevation than elsewhere. Thorax formed as in impressus, 

 more densely and strongly punctured, without central 

 channel, but with the indistinct impressions on the upper 

 sm-face so closely placed as to render the sm-face uneven. 

 Elytra slightly longer than the thorax, coarsely and very 

 closely riigosely punctured ; towards the sides obsoletely 

 impressed, the punctuation in the impressed part more 

 irregular than elsewhere. Hind body very pointed at the 

 extremity, closely and very coarsely punctured. Legs 

 yellow, not so long as in impressus, but otherwise similarly 

 formed. 



In the male the 7 th segment of the hind body has its 

 hind margin on the under side emarginate. 



Found among dead leaves at Copper Temple, Nagasaki. 



156. Steiius cicindela, u. &]). (Sec. II. B. Er.) Xiger, 

 nitidus, grosse profunde a3qualiter punctatus, parce pubes- 



