CONTENTS OF PART I. 
PAGE 
.1. On a new genus of Colydiida, from Japan. By T. Vernon Wol- 
LASTON, M.A., F.L.S 1 
II. On the Cossnnidce of Japan. By T. Vernon Wollaston, M.A., 
F.L.S 5 
III. The Water Beetles of Japan. By David Sharp, M.B. ... 45 
IV. Catalogue of the Phytophagous Coleoptera of Japan, with descrip- 
tions of the species new to science. By Joseph S. Baly, F.L.S. . C9 
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