HEXAGONIA NIGRITA. 249 



Closely allied to H. Bowringi Schaum, but that species 

 is considerably smaller and has a much larger and more 

 heart-shaped thorax and shorter antennae, which only ex- 

 tend slightly beyond the middle of the thorax. Besides its 

 being a trifle smaller I cannot find any difference between 

 my Javan and Sumatran specimens. 



Hexagonia L uc as s enii, v. d. Poll. 



Minor, angusta, nitida, rufo-testacea ; capite et quinta 

 parte apicali elytrorum brunneis ; antennis , mandibulis pal- 

 pisque rufis ; pedibus testaceis. Caput subrugosum , in vertice 

 levior, inter antennas obsolete bi-impressum. Protliorax cor- 

 diformis, capite haud latior, angidis anticis late rotundatis , 

 lateribus basin versus sat angustatis , rotundatis et paullo 

 emarginatis ante angulos posticus, qui anguli acuti paullis- 

 per prominent; rug ulo sus , in medio linea lata valde impres- 

 sies , juxta margines laterales impressione lata , obsoleta , ma- 

 gis rugosa instructies. Elytra prothorace dimidio latiora, 

 humeris valde rotundatis, lateribus fere rectis , parallelis, 

 ad apicem conjunctim late rotundata; punctato-striata , in- 

 tervallis planis, levibus, intervallo quinto singulo , intervallo 

 tertio tribus punctis obsoletis instructo. Pars inferior suble- 

 vis , capite transversim plicato , prosterno dense punctato. 



Long. 7 mm. 



Habitat : Kemanglen : Tegal , Java (Lucassen !). 



A small and slender species. Nitid , pale rufous with 

 the head brown , the antennae and parts of the mouth 

 rufous , the apical part of the elytra with a common bi- 

 sinuate brown or blackish spot, entirely occupying the 

 reflexed margin or even extending somewhat beyond it; 

 the legs testaceous. Head between the antennae with two 

 shallow broad impressions , united by an impressed trans- 

 verse line in front, behind the eyes with a very obsolete 

 small pit; finely rugose, punctured on the vertex. Antennae 

 long, considerably overreaching the base of the thorax. Pro- 

 thorax as wide as the head , heart-shaped , the front angles 

 obtuse , the sides gently rounded and emarginate before 



Notes from the Ley den Museum , Vol. X.I. 



