382 Mr. J. Nietner on new Ceylon Coleoptera* 



division 11. B. of the genus, both having the abdomen immar- 

 ginate and the fourth tarsal joint bilobed. Everything about 

 this species is elongated. The head is about one-third broader 

 than the thorax; the forehead is slightly excavated, with two 

 elevated ridges running from the root of the antennae a short 

 distance upwards ; a third runs from the crown of the head down 

 towards the centre of the two former, but all three reach only 

 about the middle of the head. The part below the antennae is 

 covered with white hair. The antennae have the third joint much 

 elongated, and the terminal club composed of elliptic joints. 

 The thorax is rather slender, incrassated at the middle, gradually 

 narrowed in front, but nearly quadratic behind. The elytra are 

 longer than the thorax, about double its breadth, and oval, being 

 slightly narrowed at the shoulders and the apex. The legs are 

 long and slender, hairy at the apex of the tibise and the tarsi, 

 the latter very much so on the inner side. The insect is of a 

 metallic black colour, highly polished ; the legs, palpi, and the 

 first two antennal joints are whitish, the tibise and the apex of 

 the palpi being, however, rather darker; joints 3-11 of the an- 

 tennae are brownish ; the coxae and the mouth are yellowish ; 

 the tarsi have a brown spot at the apex of the first three joints ; 

 the claws are black. The insect is punctured all over, but less 

 so on the abdomen, the apical segments of which are indeed 

 nearly smooth, than elsewhere, and sparingly covered with small 

 white hairs. 



22. Stenus lacertoides, N. 



/S. robustus, nigro-eeneus, dense profundeque punctatus, subtus spar- 

 sissime pubescens, pedibus palpisque testaceis, feraoribus apice 

 nigrescentibus, antennis oreque castaneis. Long. corp. 1^ lin. 



Caput thorace quarta parte latius, fronte 2-costata. Antennae 

 robustse art. S*' quarto paulo Jongiore, 9-10 globosis, 11° conico. 

 Thorax cylindricus, medio fortius incrassatus, latitudine quarta parte 

 longior, margine anteriore elevato, basi subquadratus. Elytra tho- 

 race longiora, convexa, humeris prominentibus. Abdomen immar- 

 ginatum. Tarsi art. 4° profunda bilobato. 



In prov. occid. stagnorum ripis rarius occurrit. 



About this species everything is robust. It is well distin- 

 guished by the rounded club-joints of the antennae, the elevated 

 anterior margin of the thorax, the prominent shoulders, and its 

 general shortness and plumpness. The forehead is rather more 

 depressed or excavated than in the former, the two antennal 

 ridges are shorter, the vertical one is altogether obsolete. The 

 palpi are robust. The third antennal joint is about one-third 

 longer than the fourth. The thorax is shorter and plumper than 

 in the former. The elytra are less oval, having the shoulders 



