Phytophagous Coleoptera of Japan. 171 



Genus CoLASPOSOJiA, Laporte. 

 Silb. Rev. Ent. i. p. 22. 

 Baly, Phyt. Malay, p. 270. 

 Colasposoma cyaneuvi, Motsch. 

 Sclirenk, Reis. in Amui'-land, ii. p. 177. 

 Hab. — Japan and Eastern Siberia. 



Fam. CHRYSOMELIDiE. 



Genus TijVIARcha, Lat. 



Timarcha tenehricosa, Fabr. 



Hab. — Hakodadi (Wliitely); a single specimen in the 

 British Museum. 



Genus CiiRYSOMELA, Linu. 



Faun. Suec. p. 160. 



Three species of this genus have up to the present time 

 been found in Japan. One is common to these islands 

 and to Manchuria, the second is found in Northern 

 China and Eastern Siberia (rivers Angara and Amour), 

 and the third is spread over Northern Asia and Eastern 

 Europe. 



Chrysomela Japana. 



Elongato-ovata, postice paullo ampliata, valde convexa, 

 rufo-cuprea, purpureo- aut a^nco-tincta, subtus nigro- 

 cferulea; thorace sat fortitcr punctato, lateribus incrassatis, 

 rotundatis, postice angustatis ; elytris ovatis, subcrebre 

 punctatis, punctis prope suturam subseriatim dispositis. 



Long. 3^ — 4 lin. 



Hab. — A single specimen collected at Hakodadi, by 

 Mr. Wliitely, in Mr. Lewis's collection ; a second in my 

 cabinet was taken in Japan by JNIr. Moor ; I also possess 

 the species from Manchuria, collected by Mr. BoAvring. 



Head short, remotely punctured; face between the eyes 

 impressed with two large oblong fovere. Thorax twice as 

 broad as long, sides thickened, gradually diverging from 

 the base to the middle, thence obliquely rounded and con- 

 verging to the apex ; anterior angles subacute ; disk mode- 

 rately convex, deeply but not very closely punctured, the 

 punctures round, congregated in irregular patches on the 

 surface ; thickened sides bounded within by a shallow ex- 

 pression, which extends the whole length of the thorax. 



