226 Descriptive Catalogue [1896. 



trigone, the fourth one deeply incised and broadly bilobate ; claws 

 slender, finely pectinate. 



Hah. This genus is represented in Europe, Africa, and Australia. 



Synoi^sis of Si)ecies. 



Elytra with the suture darker than the disk natalensis. 



Elytra with the suture as pale as the disk fragilis. 



Demetbias natalensis, Chaud., 

 Eev. et Mag. Zool., 1876, p. 372. 



Head and prothorax slightly testaceous ; antennas Avith the apical 

 joints a little rufescent ; head almost smooth ; prothorax elongated, 

 subcordiform, with the posterior part narrowed and the outer angles 

 projecting, narrowly grooved in the centre and very finely plicate 

 transversely ; elytra gradually ampliated backward, about one-fourth 

 broader above the apex than at the Dase, striate, the strise with 

 broad punctures, the intervals slightly convex, smooth, the third 

 one with three broad punctures, the anterior one at about one-third 

 of the length, the second in the centre,''' the third far above the apex, 

 transparent with the suture a little darker than the disk. Length 

 4J-5 mm. ; width 1^ mm. 



Hab. Natal (D'Urban, Frere). D. natalensis is taken in wet 

 sand, by spruits under tufts of grass and debris, September to 

 November It seems to disappear when the rains come and fill the 

 " spruits," i.e., streams. (G. A. K. Marshall.) 



Demeteias feagilis. 



Very light pale yellow, with the head and prothorax a little 

 darker ; head almost smooth ; prothorax elongated, subcordiform, 

 with the posterior angles very acute, narrowly grooved in the centre 

 and very finely plicate transversely ; elytra nearly parallel, finely 

 striate with the intervals plane, and tw^o deep punctures on the 

 third, one near the base, the other above the apex, very pale yellow, 

 moderately shining and almost transparent. Length 4 mm. ; width 

 IJ mm. 



Prothorax narrower than in D. natalensis, the colour is more pallid, 

 the elytra are more parallel and narrower, the strite are finer and 

 hardly punctured, and the suture is of the same colour as the disk. 



Hab. Zambezia (Salisbury). 



Gen. PELIOCYPAS, Schm.-Goeb., 

 Coleopt. Birm., 1816, p. 33. 

 All the generic characters are those of Dcmetrias ; the ligula, how- 

 * This median puncture is wanting in some examples or is hardly distinguishable. 



