the Staphylinidge of Japan. 457 



basi et articulo ultimo pedibusque testaceis ; elytris margine 

 apicali vittaque obliqua ad humerum extrorsum expansa flavis. 

 LoDg. ] 1 millim. 



Antennai rather elongate, ninth and tenth joints each about 

 as long as broad, terminal joint rather longer, yellow, the 

 elongate basal joint also yellow ; palpi piceous, with the ter- 

 minal joint flavescent. Head elongate and narrow, subcylin- 

 dric. Thorax entirely black. Elytra not very long, in 

 larger part black, but each with a yellow mark starting from 

 the suture at the apex and extending to the shoulder, where 

 it is much dilated, the hind margin also narrowly yellow ; the 

 sutural and discoidal series of punctures each about eleven or 

 twelve in number. Hind body rather coarsely punctate, with 

 distinct erect setse. Legs flavescent, with the tips of femora 

 and tibiee infuscate. 



One of the two examples has the base of the hind body 

 obscurely rufescent, due, I expect, to its being a little imma- 

 ture. 



Nikko. 



Bolitohius irregularis. 



Bolitohius irregularis, Weise, Deutsche ent. Zeitschr, xxi. (1877) p. 93. 



Yokohama, Miyanoshita, and Kumakuni in Higo {Lem's) ; 

 Hagi {Hiller). 



Bolitohius semirufusj n. sp. 



Elongatus, angustulus, antice et postice acuminatus ; antennarum 

 basi et articulo ultimo, palpis pedibusque testaceis ; capite thorace- 

 que nigris, hoc ad latera et ad basin, illo antice, testaceis ; elytris 

 testaceis, circa scutellum et late ad angulos posteriores nigris ; 

 abdomine rufo, apice nigro, segmento penultimo apice flavo-ciugu- 

 lato. 



Long. 7 millim. 



Antennge slender, the three basal joints and the terminal 

 joint yellow, the tenth joint about as long as broad. Head 

 elongate, black, yellow in front of the antenna. Thorax as 

 long as broad, black, the sides yellow, more broadly so behind^ 

 the basal margin narrowly yellow. Elytra rather long, 

 yellow, with a very large black mark on each behind; these 

 marks nearly join at the suture, and leave the hind margin 

 narrowly yellow ; there is also a black triangular mark on 

 the scutellar region ; the sutural series of punctures is about 

 seven in number, and the discoidal the same. The abdominal 

 punctuation is scanty, being nearly absent on the two basal 



