152 RHYNCHOPHORUS SWIERSTRAE. 



this scabrous portion bears some very short and stiff brist- 

 les and some black granulations which , towards the end of 

 the rostrum , are arranged in two convergent rows and 

 are placed on a strongly raised compressed ridge ending 

 a little before the apex of the rostrum in an obtusely 

 pointed tooth which slopes towards the extreme tip ; a faint 

 furrow is to be seen at about the middle of the sides. The 

 club of the antennae is much less transverse than it is in 

 the male of Rli. serrirostris Fabr. 



The pronotum is more strongly convex than in serrirostris ; 

 the sides are regularly rounded , slightly narrowing towards 

 the constricted front-portion ; the basal lobe is more deeply 

 sinuated and its median portion distinctly more prolonged 

 backwards. The scutellum is elongate lanceolate. 



The elytra are more elongate and more narrowing towards 

 the end than in serrirostris , in other respects they are 

 similar. The pygidium is triangular with rounded tip , and 

 it is covered with distinct punctures which are not very 

 close together. 



The undersurface is laterally covered with very minute gra- 

 nulations which are placed close together but become sparser 

 and sparser on the abdomen ; the deflexed lateral margins of 

 the apical ventral segment are strongly punctured , and frin- 

 ged at the end ; the apex itself truncate in a sinuate man- 

 ner and provided with a strong and dense punctuation ; 

 along the middle the under surface is smooth showing only 

 a few punctures; the metasternum and basal ventral seg- 

 ment have a shallow furrow along the middle. 



The legs are distantly punctured , the femora notched 

 on the under surface near to the tip , the under surface 

 of the anterior femora moreover provided on the inside 

 with a compressed ridge which is delicately rugose; the 

 tibiae are slightly dilated on the under surface near to the 

 base which is caused by a ridge which has a thickened 

 margin. The tarsi are spongious beneath. 



Hah. Ambarawa: East Java (Bernelot Moens). — A single 

 male specimen in the Ley den Museum. 



r<fotes from the Leyden Miuseuin, Vol. XIII 



