374 Dr. D. Sharp on 



distinctly narrowed behind, very densely rugose-punctate, 

 quite dull. Elytra rather longer than the thorax, densely 

 and coarsely punctate. Hind body shining, rather closely 

 punctate. 



Nikko ; one specimen. 



Though allied to the preceding two species by the sculp- 

 ture of the head and thorax, this differs by the more normal 

 sculpture of the elytra ; it is more like a Bolitochara in 

 appearance than are the other two species. 



Silusa conferta, n. sp. 



Subdepressa, fusco-nifa, deusissimo subtiliter punctata ; abdomine 

 parce puuctato, nitido ; antennarum basi, elytrorum marginibus 

 pedibusquc ruf o- testaceis, abdomino ante apicem nigro. 



Long. 2| millim. 



Antennse short, moderately stout, thicker externally, fifth 

 to tenth joints transverse. Head a little narrower than the 

 thorax, extremely densely punctured, dull. Thorax rather 

 strongly transverse, a little narrowed behind, extremely 

 densely, rather finely punctate, quite dull. Elytra consider- 

 ably longer than the thorax, densely punctate, not quite dull, 

 the punctuation being coarser than that of the head and 

 thorax ; the hind margins and shoulders are more distinctly 

 rufescent than the other parts. Hind body very sparingly 

 punctured, basal segments rufescent, the others black ; legs 

 sordid yellow. 



Miyanoshita ; two specimens, in bad preservation. 



In this species I have been able to get a rather unsatisfac- 

 tory view of the labial palpi ; they are apparently slender and 

 elongate, only two-jointed. S. conferta is distinguished from 

 the preceding species by the more depressed form and finer 

 sculpture. 



Silusa crassicorniSj n. sp. 



Minus depressa, rufo-testacea, abdomine ante apicem fuscescente ; 

 antennis articulis 4°-10™ fuscescentibus ; capita thoraceque den- 

 sissime punctatis, opacis, hoc fortiter transverso, basin versus 

 angustato. 



Long. 2g millim. 



Antennae rather stout, second and third joints equal, sixth 

 to tenth transverse, terminal joint elongate and paler in 

 colour than those preceding it. Head much narrower than 

 the elytra, very densely punctate. Thorax twice as broad as 

 long, its punctuation like that of the head. Elytra short and 



