180 Descriptions of new Ceylon Cokoptera. [no. % 9 new series, 



Caput thorace tertia parte latius, fronte costis 3 abbreviatis, an- 

 tice albido-pubescens. Antennae art. 3° sequentium 2 fere longi- 

 tudine, 3 ultimis elongatis, ellipticis. Palpi max. elongati apice 

 densius pubescentes. Thorax cylindricus medio leviter incrassatus, 

 basi subquadratus. Elytra thorace paulo longiora, sed fere duplo 

 latiora, convexa, ovata. Abdomen immarginatum. Pedes elongati 

 tenues, tibiis apice tarsisque fortiter setosis, his art. 4° profunde 

 bilobo. 



In lacus Colomb. ripis specimina nonnulla legi. 



This as well as the following species belongs to Erichson's divi- 

 sion II. B. of the g., both having the abdomen immarginate and 

 the 4th 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 2 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 to about the middle of the head. The 

 part below the antennae is covered with white hair„ The antennae 

 have the 3rd 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 tibiae and the 

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

 a metallic black color highly polished, the legs, palpi and the first 

 2 antennal joints are whitish, the tibiae and the apex of the palpi 

 being, however, rather darker, joints 3-11 of the antennae are 

 brownish, the coxae and the mouth are yellowish, the tarsi have a 

 brown spot at the apex of the first 3 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, and sparingly 

 covered with small white hairs. 

 22. Stenus lacertoides. N. 



S. robustus, nigro-aeneus, dense profundeque punctatus, subtus 

 sparsissime pubescens, pedibus palpisque testaceis, femoribus apice 

 nigrescentibus, antennis oreque castaneis, Long. corp. \\ lin. 



