Phytophagous Coleoptera of Japan. 189 



again as long, sides straight and very slightly diverging 

 from the base to beyond the middle, thence rounded and 

 converging to the apex, anterior and posterior angles each 

 armed with an obtuse tubercle ; basal margin sinuate in 

 front of the scutellum ; above shining, finely and distantly 

 punctured, flattened on the disk, slightly excavated on either 

 side in front, faintly excavated down the medial line. 

 Elytra parallel, more strongly and closely punctured than 

 the thorax. Legs piceous, the knees of the four hinder legs, 

 together with the anterior thighs and tibia3, obscure fulvous ; 

 the fulvous colouring in some specimens extends more or 

 less over the four hinder tibite. 



Genus MoNOLEPTA, Erichs. 



Arch, fiir Naturg. 1843, p. 265. 



Joannis, Mon. Galler., L'Abeille, iii. 156. 



^ Monolejjta Jlaviventris , Motsch. 



Calomicrus ? Jlaviventris , Motsch. Etud. Ent. ix. 26. 

 Hab. — Japan ; also Northern China. 



y 3Io7ioIepla nigro-hilineata, Motsch. 



Cnecodes nigro-bilineatus, Motsch. Etud. Ent. ix. 26. 

 Hab. — Japan. 



Subfam. HALTicixiE. 



Genus ^DiONYCHis, Latr. 



Regn. Anim. tom. v. 



j^dlonychis Japoniciis. 



Oblongo-ovatus, convexus, nigro-piceus, nitidus; tho- 

 race remote punctato, lateribus late piceis, margine reflexo 

 piceo-fulvo ; elytris remote punctatis, piceo-fulvis, sutura 

 vittaque mediali, postice abbreviata, nigris. 



Var. A. Elytris totis nigro-piceis. 



Long. 1| — 2 lin. 



Hab. — Nagasaki. 



Head shining, vertex and front impressed on either side 

 with large, round, variolose punctures ; encarpte trigonate, 

 contiguous, slightly raised, smooth and shining, impunctate ; 

 antennjB two-thirds the length of the body, robust, slightly 

 thickened towards the apex, four lower joints pale piceous. 



