280 REV. H. S, GORHAM ON THE [Mar. 1/, 



4. Revision of the Phytophagous Coleoptera of the Japanese 

 Fauna : Subfamilies Cassidince and Ilispince. By the 

 Eev. H. S. GoRHAM, F.Z.S. 



[Eeceived March 4, 1885.] 



In Mr. G. Lewis's Catalogue of Coleoptera from the Japanese 

 Archipelago, pul)lished in 1879, he has enumerated eleven species 

 of Cassidince and three of Hispince ; of the former, two must be 

 considered synonyms, reducing the number of species then actually 

 known to nine. In the present account of these groups, eighteen 

 species of Cassidince are recorded and four of Hispince. It is not 

 probable, Mr. Lewis thinks, that further investigation will very greatly 

 increase the nuniber ; a few of the species known to inhabit Siberia 

 will probably be found in the northern parts of the islands. 



Compared with the European and Asiatic and with the North- 

 American faunas, it appears to me that Japan has the proportion of 

 species we might expect, or more in proportion if the area alone is 

 considered ; and if we consider the genera hitherto observed, it is 

 evident that there is more of the Eastern and Tropical element than 

 of the North American. Europe possesses but one genus of Cassi- 

 dince, viz. Cassida, while in Japan we have the distinctly Old- World 

 tropical genus Aspidomorpha, with Coptocyclce of Eastern type, 

 when, however, the northern islands of Yezo and Saghalien have been 

 as fully explored, it is probable that some species may be found to 

 modify this view. 



The number of species here treated of is too small to admit of 

 generalization to any extent ; but T see no reason to modify the view 

 I have already expressed, when reviewing the Malacodermata of the 

 same region (Trans. Ent. Soc. 1883, p. 393). The number of 

 species which may have been derived is perhaps larger here than in 

 some groups ; but these forms are usually sufficiently different from 

 their representatives in distant localities to show that long-continued 

 isolation has resulted in some permanent modification of the species, 

 and a few species appear to be really endemic. 



Cassidin^ 



AsPIDOMORPHA. 

 ASPIDOMORPHA DIFFORMIS. 



Aspidomorpha difformis, Boh. Mon. Cass. Supp. p. 277; Bal}', 

 Trans. Ent. Soc. 18/4, p. 211 ; Kraatz, Deuts. ent. Zeits. xxiii. 

 p. 270 (1879). 



Deloyala diffoj-mis, Mots. Etudes Ent. ix. (1860) p. 27. 



Uab. Manchuria ; Eastern Siberia j Japan, in all the islands 

 (G, Lewis); Nikko {Pryer). 



Aspidomorpha elliptica. 



Late ac concinne ovata, antice et postice eequaliter rotundala, dia- 



