No. 9. — 1856-8,] new cetlon coleoptera. 



45 



longitudinal furrows; the eyes are large, rather oval and 

 prominent ; behind them the head is abruptly contracted into 

 a thick neck. The antennas are long and thick, reaching 

 nearly to the middle of the body, joints 1 and 11, 2-4, 5-10 

 are subequal among themselves, 5-11 oval, 1-4 subcylindric. 

 The labrum is small, rather triangular, being narrowed at its 

 base, it is emarginated in front with a slight angle in the 

 middle of the emargination. The mandibles are long, straight, 

 triangular, bent at the tip only, dentated below the middle, 

 the one more so than the other. The maxillae are thin and 

 slender, gently bent outwards at the base and inwards at the 

 apex, the outer lobe corresponding with the inner one in shape 

 and strength. The palpi are robust, both the maxillary and 

 labial ones have joint 4 elongated, thin and acuminated, in 

 fact needle-shaped, firmly implanted in the preceding one, not 

 loosely hinged to it. The maxillary ones have joints 3 and 2 

 robust, the former swollen on the inner, the latter on the outer 

 side. In the labial ones joint 3 is still plumper than in the 

 others, but differs in shape by being incrassated on the outer, 

 instead of the inner side, the second joint being at the same 

 time quite small and cylindric. The mentum is large and 

 simple as above described. The ligula is small, oblong, very 

 slightly narrowed and transversely cut away at the apex, the 

 paraglossae separate from its sides a little below the anterior 

 corners, they are setiform and reach much beyond it. The 

 whole organ is of membranaceous texture : having, however, 

 a more substantial centre or back. The thorax and elytra are 

 simple and sufficiently described above. I may add that the 

 former is divided by a longitudinal furrow and that both are 

 furnished with a narrow margin at the sides. The scutellum 

 is very small, and the abdomen furnished with a short pe- 

 duncle. The legs are weak, simple, and nearly equal, the 

 anterior tibiae are deeply notched, the lower margin of the 

 fourth tarsal joint of the same pair is furnished with a long 

 thin spine, the apex of which fits in between the claws, as 

 in Lymnceum Steph. I have been unable to discover any 

 footbrushes or other sexual distinctions, in the specimens be- 



