( 291 ) 



Microsutrea violaceipennis sp. nov. 



P'ulvous, the antennae not quite ivaeliing the apex of the elytra, thorax finely 

 and sparingly punctured, elytra violaceous blue, finely puuctate-striate. 



Length 1 ^ to li line. 



Head not longer than broad, eyes large, surrounded by a narrow sulcus, the 

 vertex impunctate, frontal tuliercles entirely obsolete, carina acutely raised, clypeus 

 swollen, narrowly transverse, penultimate joint of the palpi thickened, antennae 

 extending beyond the middle of the elytra, fulvous, the fii-st joint moderately long, 

 the second half its length, third and following joints elongate; thorax more than 

 twice as broad as long, of eipial width, the sides straight, the anterior angles oblique, 

 the surface rather convex, without de^ffessions, extremely finely and sparingly 

 punctured ; elytra metallic violaceous blue, with a slight depression below the hn^e, 

 very finely punctate-striate ; underside and legs fulvous. 



Httb. Humboldt Bay (Xew Guinea). 



Sebaethe longicornis gen. nov. 



Ovate, pale testaceous, antennae very long and slender; thorax flattened at the 

 sides and at the base, impunctate ; elytra very minutely and closelv punctm'ed. 



Length 2J lines. 



Head impunctate, the fi-ontal elevations very strongl}' raised, eyes very large, 

 clypeus with an acutely raised ridge, antennae nearly extending to the end of the 

 elytra, testaceous, the third and following joints very long and slender, equal ; thorax 

 strongly transverse, the sides flattened and I'ounded ; tlie middle of the base with ii 

 transverse depression, the surface entirely impunctate ; elytra nearly parallel, narrowly 

 margined, extremely finely and closely punctured, the interstices finely longitudinally 

 WTinkled. 



Hab. Talaut (Islaml of Lirung or Salibabo). 



Although this species is very closely allied to S. celehensis Jac, S. pallida, and 

 one or two others, the very long antennae and the equal length of the third and 

 following joints and the depressions of the thorax will distinguish it ; in the two 

 specimens the elytra besides being finely punctured show short longitudinal wrinkles 

 over their entire sm'face, a sculpturing also quite difl'erent from any of tlie allied species. 



Sebaethe bipustulata sp. nov. 



Ovate, black, head and thorax impunctate, elytra scarcely perceptilily punctured, 

 black, each with a large ovate pale flavous spot at the middle. 



I.,engfh 2 lines. 



Hab. Perak. 



This species at fir.st sight seems identical with S. lusca Fabr., but the constant 

 difierences in more than six specimens which are before me seem to prove that the 

 insect is specifically distinct; in S. htsca the head, the three lower joints of tlie 

 antennae and the thorax are fulvous ; in the present species they are entirely black, 

 the pale elytral patch occupies the entire posterior portion in <S. iusca, and is concave 

 at its inner margin near the suture; in (b'. bipusUdata this patch is of broadly trans- 

 verse shajie, leaving the apex for some distance of the black ground colour, and having 

 its greatest width near the lateral margin. 



