the Ci.stelidie tD-. of Japan. 263 



impressed where in }[. jafjouici and M. fuenilis there is a 

 conspicuous longitudinal channel, but my exaiuples apparently 

 are both females. 



JIab. Kashiwagi. Two examples, 23rd June, 188 1. 



Synchroa crepuscula, sp. n. (PI. VIII. fig. 1.) 



Elongata, angustata, infascata, subopaca, pubescens ; capito thorace- 

 (jue minute et dense punctatis; cdytris distincte striatis, interstitiis 

 convexis ; antennis pedibusquo obscure rufo-brun!ieis. 



L. 18 mill. 



Elongate, narrow, dusky or blackish brown, somewhat 

 opaque, with short greyish pubescence ; the head finely and 

 densely punctured ; the thorax, sculptured like tlie heaiJ, 

 narrowest anteriorly, feebly swollen in the middle, widest at 

 the posterior angles, angles obtusely pro luced, depressions at 

 the base wide and shallow; the elytra, very long and narrow, 

 distinctly striate throughout, interstices convex and finely 

 punctulate; the antenna, palpi, and legs dull reddish brown. 

 The third joints in all the tarsi are shorter than those of 

 S. melanotoides. 



This is the finest species of the genus known at present. 



llaJ). Sapporo and .Tunsai. Only five specimens. 



Synchroa melanotoides^ sp. n. 



Elongata, elliptica, infuscata, subnitida. pubescens ; capita thoraoeipie 

 parum dense punctatis ; elytris striis leviter iuipressis ; aateunis 

 pedibusque obscure brunneis. 



L. 10-1 2,;i miU. 



Elongate, elliptical, dusky brown, somewhat shining, with 

 somewhat long tawny pubescence ; the head rather densely 

 but not finely ))unctured ; the thorax narrowest anteriorly 

 and gradually widening to the base, posterior angles not pro- 

 duced, depressions at the base deep, somewhat triangular, 

 and not widening out like those of S. crepuscula ; the elytra, 

 strife feebly impressed, interstices punctured like the head 

 and thorax; the antennae and legs dull brown. 



This species somewhat resembles *S'. nndtri/iaj Mels. 



Ilab. Miyanoshita, Kurigahara, Sapporo, and Junsai. 

 Many specimens. 



Serropalpus niponicus^ sp. n. 



Elongatus, angustatus, brunneus, pubosct-ns ; capit*' thnraceqiie 

 densissime rugoso-punctulatis ; elytris distincte striatis, interstitiis 

 dense rugoso-punctulntis ; aiiti nnis pedibusqno roncoloribus. 



L. y mill. 



This species is similar in form and colour to <S', filifonnis 



18* 



