326 Mr. D. Sharp's revision of the 



has a great superficial resemblance to Gerallus, from 

 which it differs by the more widely separated antennae 

 and the elongate single claw. To it is to be assigned 

 Bryaxis protervus, which at the time of its description I 

 indicated as a new genus ; and now that Mr. Lewis has 

 discovered a second species agreeing with it in the 

 generic characters, it is better to separate it formally 

 from Bryaxis. 



Triomicrus simplex, n. s. 



Rufus, nitidus, crebre pubescens ; prothorace sub- 

 globoso, impunctato, trifoveolato ; elytris parum punc- 

 tatis, stria suturali aliaque discoidali elongata ; abdo- 

 mine segmento basali post elytrorum suturam vix per- 

 spicue foveolato. Long. 2 mm. 



While the next species approaches in appearance (and 

 in the structure of the head) somewhat to Tychus, T. 

 simplex has quite the appearance of a Bryaxis, and is 

 abundantly distinguished by the absence of punctuation 

 on the bead and thorax. The antennae are moderately 

 stout, with large 2-jointed club. At the base of the 1st 

 dorsal segment behind the suture of the elytra there is 

 only an obscure depression, and no raised lines. 



The male has the terminal joint of the antennae longer 

 than the female, and the middle trochanters armed with 

 a short truncate prominence ; the metasternum simple. 



A small series of this species was met with at Niigata 

 on the 15th Sept., 1881. 



Bryaxis protervus, Sharp. 

 Sharp, Trans. Ent. Soc. Lond., 1874, p. 121. 



A few specimens of this species were found about 

 Nagasaki in the early spring of 1881 ; February to April. 



Bythinus. 

 Bythinus ajjinis, n. s. 



Fulvus, evidenter pubescens, capite thoraceque dense 

 punctatis, opacis, elytris parce, fortiter punctatis ; palpis 

 maxillaribus articulo ultimo elongato, fere gracili. Long. 

 1£ mm. 



Mas, antennis articulo basali incrassato, secundo 

 parvo simplice, pedibus posterioribus fortiter incrassatis. 



