( 69 ) IV. Catalogue of the Phytophagous Coleoptera of Japan, icith descriptions of the species neio to science. By Joseph S. Baly, F.L.S. [Read 2n(l December, 1872.] The great majority of the species which I have enumerated or described in the present paper were collected by Mr. George Lewis during his residence in Japan. It is, un-doubtedly, the largest collection of Japanese Phytophaga ever brought to this country ; but in order to make the list of species more complete I have added the descriptions of a few insects previously existing in my own cabinet, which do not appear to have been met with by him. Here and there, under the various genera, I have made a few remarks on the geographical distribution of the species be-longing to each ; and it is my intention in a second paper to give a tabular list, similar to the one given by Mr. F. Smith in his paper on the Hymenoptera collected by Mr. Wallace, in order to show, as far as possible, their geo-graphical range. Fam. DONACIDiE. Genus DoNACiA, Fabr. The single species taken by Mr. Lewis in Japan has a very wide range ; it differs both in coloration and size ; it is probably the Donacia Javana, Wiedeman. Donacia (Braria, Baly. Phytoph. Malay,, Ent. Trans. Lond., 3rd series, vol. iv. 7. Hah, — Nagasaki and Hiogo, Japan ; also Ceylon, India and the Malay Archipelago. This insect was found by Mr. Lewis on a small species of water lily. TRANS. ENT. SOC. 1873. — PART I. (mAE.)