138 Entomological Papers. [No. 2. 



body, joints 1 and 11, 2 4 5-10 are subequal amongst themselves, 

 5-11 oval, 1-4 subcylindric. The labrum is small, rather trian- 

 gular 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 2nd joint being at the same time quite small and cvlin- 

 dric. 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 paraglossia 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 peduncle. 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. I have been unable to discover any 

 footbrushes or other sexual distinctions in the specimens before 

 me, but it is not improbable that the tarsal spine just mentioned 

 occurs only in one sex. 



The habits of the insect are those of the Bembidia, in whose 

 society it lives upon the banks of rivers, like them taking readily 

 to its wings. I have found it occasionally in considerable num- 

 bers upon the sandy banks of the Maha Oya in the neighbourhood 

 of Kegombo, close to the edge of the water. 



