428 Descriptions of Species of Haliplidcs and Hydroporida. 



piinctatus, rufo-fuscus ; capite inter oculos undique transversa 

 foveolato, rufo-flavo ; thorace antice emarginato, lateribus 

 subrotundatis obliquatis, basi subsinuato, ad medium leviter 

 angulato, crebre punctato, rufo-flavo ad basin transverse ad 

 medium fusco, striis ad basin brevibus obiiquatis ; elytris ad 

 latera angulum obtusissimum cum thoracis margine formanti- 

 bus, sat elongatis, ad apicem subacuminatis, undique suturam 

 juxta striatis, crebre punctatis, rufo-fuscis, macula undique 

 transversa subtriangulari, (ante medium, suturam baud attin- 

 genti,) vittaque ad marginem usque ad apicem flavis ; pedibus, 

 antennis, corporeque subtus flavis, vel rufo-flavis. 

 Long Corp. lin. 1 ; lat. lin. J. 



This species is apparently subject to variety in shade of colour 

 rather than in pattern : the irregularly-formed, subtriangular, ante- 

 medial marking is constant in form ; in no case does it reach the 

 suture : it is connected with an irregular lateral marking, which 

 (broader, post-medially) extends to the apex ; thus causing the 

 apex itself to be transversely flavous. H. orientaJis may be sepa- 

 rated from others of this subsection by the direction of the thoracic 

 fovea, which is not longitudinal but distinctly oblique. 



Taken in China, and also received from Siam by Mr. Bowring. 



