the Staphylinidee of Japan. 455 



Conosoma tristiculum. 

 Conosoma tristiculum, Weise, Deutsche ent. Zeitsclar. 1877, p. 92. 



Mr. Lewis has brought back only a single specimen that I 

 can consider to be this species ; it has the middle tibi» 

 simple and the epipleurae nearly simple at the shoulders, and 

 is thus readily distinguished from C. tibiale, while from G. 

 varicorne, which also it greatly resembles, the slender an- 

 tenna with elongate terminal joint conspicuously separate it. 



The precise locality of this individual has not been re- 

 corded. 



Conosoma varicorne, n. sp. 



Sat crassum, nigro-fuscum, subopacum; antennis rufo-obscuris, basi 

 et articulo ultimo pedibusque testaceis ; anteunis baud gracilibus, 

 apicem versus incrassatis, articiTlis penultimis transversis, ultimo 

 baud elongato; tibiis intermediis simpbcibus, ad apicem flavo- 

 ciliatis. 



Long. 5 millim. 



The punctuation is not very dense and usually there is no 

 marked cingulation of the hind body in this species ; ^ it 

 resembles C. tristiculum and 0. tibiale, but is readily distin- 

 guished by the simple intermediate tibias ; these when looked 

 at from the inner face are not at all enlarged towards the 

 extremity, which is simply truncate and armed with minute 

 yellow cilia ; the mesosternal carina is only moderately ele- 

 vated and the epipleurse are a little impressed at the shoulders. 

 I have seen but few specimens, mostly in bad preservation ; 

 although the colour is in some individuals more variegate 

 with red — somewhat as in C. tibiale — I see no characters for 

 separating them specifically. 



Found in several localities on the main island ; and also one 

 individual of a large dark variety from Sapporo. 



Conosoma pedicularium. 

 Tachyporus pedicularius, Grav. Col. Micr. p. 133, 



A few individuals were collected about Nagasaki in Feb- 

 ruary 1881. I am not able to point out any satisfactory 

 characters for separating the Japanese insect from the Euro- 

 pean species. 



Conosoma armatum, n. sp. 

 Parvulum, ferrugineum ; elytris abdomineque plus minusve nigro- 



