and Species of Longicorn Coleoptera, 243 



ing over a period of many years, we owe so much. It differs both 

 from P. plumicornis and P. Buquetii in its shorter and entire 

 elytra having none of the irregularities of surface which dis- 

 tinguish these, nor has it any tuft on the antennae. 



Mesosa perplexa. 



M. niger, pube ochracea varia ; elytris plagd transversa medi4 

 exteriori, albo-marginatd. China Borealis. 



Black, with an ochraceous pubescence dispersed in irregular 

 and indistinct patches on the head and prothorax in a longitudinal 

 direction, on the elytra more dispersed, but having about the 

 middle a transverse larger spot towards the side, around which 

 there is more or less of a white border; antennae with the first 

 joint variegated with ochre, the rest ochraceous at the base ; 

 legs varied with black and ochraceous. 



Length 7 lines. 



Mesosa griseata. 



M. fusca, pube grisea varia ; elytris punctatis, basi granulatis, 

 fascia obliqua irregulari versus apicem, apiceque griseis ; 

 antennis annulatis. Borneo. 



Dark brown, pubescent, varied with grey ; space round the eye 

 and line in front, various indistinct patches on the prothorax and 

 elytra, and particularly an oblique band near the apex, the apex 

 itself, and the bases of all the joints of the antennae, a pale cinereous 

 grey ; legs and under surface with a pale pubescence, the lower 

 parts of the tibiae, and the last two tarsal joints, black. 



Length 7 lines. 



Driopea. 



Head short, vertical, narrower than the thorax ; antennae longer 

 than the body, first joint moderate, shorter than the third, which, 

 with the rest, are about equal ; palpi short ; prothorax narrower 

 than the elytra; equal in length and breadth, broader behind, 

 with a small tooth at the sides : elytra depressed, narrowing 

 towards the apex ; legs slender, moderate, the posterior longer. 



The affinities of this curious little insect appear to be with 

 Leiopus. In some respects it approaches Mimorpha. 



R 2 



