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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 



