MKTRIORRHYXCHUS LLTEUS, 05 



ones serrate but not much produced or acuminate ; thorax 

 longer than wide , the sides sul)parallel , and slightly con- 

 tracted in the middle , the seven areolets very distinct and 

 deep, the posterior pair trapezoidal, the lateral carinae run- 

 ning into the margin considerably above the hind angles. 



The colour of the thorax and base of the elytra is a 

 rich maroon red shading off imperceptibly into the smoky- 

 black of the apex. The interstices have a double row of 

 square cells or punctures but they are thickly clothed with 

 a silky pile so as not to appear distinct. 



A single specimen from the district of Rawas (Sum. Exp.). 



4. Metriorrhynchus amoenus , sp. n. 



Niger , prothorace , scutello , elytrorumque basi laete lu- 

 teis. — Long. 8 — 9 millim. (;ƒ 9- 



The thorax has seven areolets inclusive of the central 

 channel , the posterior and anterior lateral pairs are not 

 very clearly divided, the carina between them running 

 near to the hind angle where it is lost. The middle of 

 the base is not notched. The antennae are flabellate , sub- 

 pectinate , each joint from the third to the tenth is angu- 

 larly produced internally , and from the apex of the inner 

 side a flat branch about ' equal in length to each joint 

 takes its rise. The flat side of this branch being (as usual) 

 opposed to the plane of compression of the antenna itself. 



Five specimens of this were taken at Lebong (Sum. Exp.). 



The males have rather narrower thoraces with. their si- 

 des a little contracted in the middle. In colour it closely 

 resembles Xylobanus divisus described in this paper. 



5. Metriorrhynchus lutens,, sp. n. 



Nigro-fuscus ; prothorace, scutello, elytrisque luteo-flavis, 

 antennis compressis, breviter flabellatis. — Long. 10 mm. Q. 



Head not rostrate , antennae as in M. amoenus , thorax 

 with six distinct areolets and a central groove , the divi- 



N"otes from the Leyden TMiiseum, Vol. IV. 



