( 431 ) 



basal fifth stands a triangular sjiot, a mesial line from liase to mijille, situated 

 ou line 4, curving near base to line 5, a sublateral line from slioulck'r to apex, 

 composed of four parts, the second partition a little nearer the edge than the first 

 and third, and the apical partition widened to a spot, a line at the lateral edge from 

 base to apex. Pygidium liuff, except a triangular mesial vitta. A lateral spot 

 on metasternnm and a continuous lateral series of spots on abdominal segments 1 

 to 4 brown. Legs rnfous, not spotted. Antennal segments 1 to 8 buff, fringe of 

 underside of segments 2 to 6 black, segments 9 to 1 1 rnfescent. 



Structure of antenna as in saperdoides. Rostrum sulcate in middle, the sulcus 

 bordered at each side by a high carina. Prouotum not punctured. Elytra flattened 

 above, with a horizontal tubercle before declivous apical portion. 



Hab. Pontianak, Borneo. 



One ?. 



Differs from all the species of Xenocerus in the presence of a tubercle on the 

 elytrum before the apex. 



49. Basitropis armata spec. nov. 



(J. Brown-black, tibiae and tarsi rufous ; pronotum and elytra densely mar- 

 morated with clay colour, some patches of the ground-colour bare of luteous 

 pubescence — namely, one laterally near apex of prouotum, another before middle 

 of elytrum at side-margin, a third behind middle near suture, and a fourth before 

 apex ; underside clay-colour, a patch on npperside of hiudfemur, base of tibiae, 

 and a small subapical spot ou mid- and hindtibae brown. Antenna brown-black, 

 except the last two segments and the lower angle of the ninth. 



Rostrum as long as broad, with prominent mesial carina, which vanishes on 

 frons ; upper edge of antennal groove strongly curved upwards ; puucturation of 

 head feeble. Antenna gradually widening from segment 5, segment 8 nearly three 

 times as broad as long. Prothorax about as long as broad, dispersedly punctured ; 

 sides sliallowly sinuate before base. Elytrum coarsely punctate-striate in basal 

 half, more finely in apical half. Metasteruum mesially impressed, witli a tubercle 

 at each side of the impression. Abdominal segments 1 to 3 impressed mesially, 

 anal segment truncate-rounded. Anterior tibia dilated at apex into a large 

 triangular tooth aud a second smaller one, separated from one another by a 

 longitudinal groove. Midtibia similarly armed, but the teeth much smaller. 



Length, 14 mm. 



Hab. Malang, Java. 



One 6. 



This is the only species known to me in which the metasternum and the 

 midtibia (J) are provided with an armature. 



50. Basitropis platypus spec. nov. 



?. Brown-black, very densely dotted and marmorated with a dark luteous 

 |)ub('sc('nce ; no large brown |)atches ; abilomeu with small brown side-s]iiits. 

 Rostrum longer than basally broad, widest before middle, transversely depressed 

 at base, mesially carinate in apical two-fifths, longitudinally punctate-rugate like 

 frons. (Antenna broken, segments 1 to 6 only preserved.) Prothorax widest at 

 liase, a little liroader than long ; puucturation feeble. Elytrum much shorter than 

 in armatti.i ; pmictured stripes distinct. Prosternum smooth anteriorly in middle. 



