102 Christmas Island. 



Three examples. One taken by Mr. Lister. Two by Mr, Andrew* 

 in the central part of the island in February, and near Flying Fish 

 Cove. 



The specimens vary in colour, two having the thorax black, with 

 the hind angles only yellow ; the third has the whole of the sides 

 yellow. The extent of the yellow markings on the elytra also 

 varies considerably. Of the numerous allied described species, thi& 

 seems to be nearest to M. litura, Cdz., from Ceylon, but it may be 

 distinct. The material at disposal is not suificient to determine the 

 question. 



Family MELYEIDJE. 

 41. Laius tibialis, Gahan, sp.n. (PI. X, Fig. 4.) 



Cyaneus aut viridi-cyaneus, ore et antennarum articulis duobus 

 primis flavo-testaceis. 



(J. Articulo 1° antennarum curvato et compresso, secundo crasso 

 parum oblongo, hand excavato ; tibiis anticis intus ad basim rufo- 

 callosis. 



Long. 5, lat. 2 mm. 



Dark bhie or greenish blue, with the first two joints of the 

 antennae, the epistome, labium, and maxillae (last joints of palpi 

 excepted) yellowish testaceous. In the male the first two joint* 

 of the antennae are enlarged ; the first joint is curved, and is 

 compressed from side to side, so that it appears narrow looked at 

 from above, but is as broad as the second when seen from the 

 front ; the second joint is thick, somewhat oblong in form, and 

 is not compressed nor excavated. Each of the anterior tibiae of 

 the male has a small reddish callosity close to the base on the 

 anterior (inner) side, with a small pit placed just below the cal- 

 losity. In some of the allied species there is a deep oblique groove 

 occupying the same position. 



Family PTINID^. 



42. Lasioderma testacea, Duft. 



A single example of this species, which is found almost 

 eveiy where. 



NEOPTINUS, Gahan, gen. nov. 



(9 ?) Antennae inserted on the front, nine-jointed, with the 

 ninth joint as long as the two preceding joints taken together. 

 Prothorax with distinct lateral margins. Middle coxae moderately 

 distant from one another ; hind coxae widely separated, the intercoxal 



