( 417 ) XXXI. Descriptions of new East-Asiatic Species of Ha-liplidae and Hydroporidas. By the Rev. Hamlet Clark, M.A., F.L.S. [Read 6th Oct. 1862.] The insects described in this Paper have either been received by me during the last few years through Mr. Stevens, or communi-cated by the kindness of Mr. Bowring. Mr. Henry Adams, who has spent several years on the coast of China, has also contributed interesting species ; his collection is singularly rich in this group, and proves how that, with even few opportunities, additions that are most important may be made to local faunas by travellers : Mr. Bowring's collection contains many new and interesting mi-nute forms from Java. Tribus I. HALIPLIDES. Genus 1. Haliplus, Lat. 1. Haliplus variabilis, n. sp. Ovatus, sat latus, apice subacuminatus, fortiter et crebre punc-tatus, testaceus, elytris nigro-maculatis ; capite subproducto, ad basin antennarum transverse depresso, subpunctato, rufo, ad basin maculis duabus rufis ; thorace lateribus subrotun-datis, obliquis, basi ad medium late angulato, subtiliter punctato, ad apicem et basin punctorum seriebus ornato, ad basin etiam foveolis duabus nigris ; elytris punctato-striatis, punctis nigris ad dorsum latis, ad apicem parvis, octo-macu-latis, una undique ante medium, duabus mediis, un4 post medium ; corpore subtus testaceo, antennis flavis, pedibus flavis, tarsorum posticorum articulis nigris. Long. Corp. \f lin. ; lat. lin. 1. In the maculations of the elytra this species is subject to con-siderable variety ; in most of tlie examples before me there are on each elytron four regularly disposed circular markings ; in others the two adjoining the suture together form one ; in others the apical portion of the elytra is more or less partially fuscous-black ; while in others, throughout the whole surface, the different markings are entirely absent. The species is a common one, and has an extensive range : I VOL. I. THIRD SERIES, PART V.— FEB. 1863. F F
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