372 Dr. D. Sharp on 



Antennae short, thicker externally, fourth joint small, fifth 

 to tenth transverse, the last of them strongly so. Head 

 nearly black, dull, obsoletely, moderately closely, rather 

 coarsely punctate. Thorax rather narrower than the elyti-a, 

 twice as broad as long, rather coarsely punctate, with two 

 rather indefinite impressions on the middle near the base. 

 Elytra short, a little broader and a little longer than the 

 elytra, moderately closely granulose-punctate, somewhat 

 shining. Hind body sliining, the basal segments sparingly 

 punctate, the apical nearly impunctate. 



Yokohama and Nagasaki in early spring ; found under the 

 bark of fir-trees. 



Tachyusida velox, n. sp. 



Elongata, angustula, rufo-brunnea ; abdomine ante apicem picescente ; 



antennis pedibusque rufia ; opaca, densissime subtiliter punctata ; 



prothorace vix transverso, basin versus angustato. 

 Long. 5 millim. 



Antennse elongate, rather stout, third joint slightly longer 

 than the second, fourth to tenth each slightly longer than its 

 predecessor, the tenth slightly transverse, terminal joint acu- 

 minate, not so long as the two preceding together ; palpi 

 slender. Head elongate, narrowed behind, much narrower 

 than the thorax, extremely densely and finely punctured, 

 quite dull. Thorax about as broad as the elytra, nearly as 

 long as broad, very densely and extremely finely punc- 

 tured, quite dull, much narrower at the base than in the 

 middle. Elytra scarcely longer than the thorax, densely and 

 finely punctured, dull. Hind body elongate and slender, 

 rather shining, finely punctate. Legs elongate. Tarsi long 

 and slender, the basal and the apical joint each very long. 

 Male with a short carina or elongate tubercle on each of the 

 terminal and penultimate dorsal plates. 



Kashiwagi, June 1881 ; two specimens. 



Silusa rugosuy n. sp. 



Rufa, opaca, fortiter dense punctata ; abdomine nitido, ante apicem 



nigro ; elytris fortiter granulatis. 

 Long. 3 millim. 



Antennse rather short, thicker externally, third joint slightly 

 shorter than the second, sixth to tenth joints transverse. 

 Head extremely densely punctured, quite dull. Thorax 

 strongly transverse, slightly narrower than the elytra, the 



