416 Mr. C. O. Waterhouse on new Genera and 



A very distinct species, on account of the granular punctua- 

 tion at the base of the elytra. 



iEDCEUS, n. gen. 



Antennas slender, filiform. Eyes moderately coarsely gra- 

 nular, rather widely separated. Thorax obliquely narrowed 

 in front of the middle, with two small tumours on the hinder 

 part of the disk ; lateral tubercle very little prominent, ob- 

 tusely conical. Elytra evenly convex, moderately narrowed 

 posteriorly, without costge, the margins very narrowly incras- 

 sated. 



The general appearance of the species upon which I pro- 

 pose to establish this genus is that of Acmceops ; but the 

 structure of the head and thorax approaches Logisticus. The 

 finely incrassated margin to the elytra, replacing the narrow 

 epipleural fold (found in Logisticus &c), is one of the chief 

 characters. 



The genus should follow Artelida. 



JEdceus geniculates, n. sp. 



Capite, thorace supra, scutello genibusque nigris, ceteris piceo- 



testaceis, elytrorum sutura apiceque infuscatis. 

 Long. 5 lin. 



Head and thorax clothed with yellowish-grey pile, very 

 fine and not very dense. Thorax as long as its greatest 

 width, thickly and excessively finely punctured, constricted 

 in front of the middle, subparallel behind the lateral tubercle, 

 which is not very prominent and is obtusely conical ; the 

 disk evenly convex in front, furnished posteriorly with two 

 distant, small, round, slightly raised tumours. Elytra at the 

 base not quite twice as broad as the base of the thorax, mode- 

 rately narrowed behind, obtuse at the apex, delicately pilose, 

 very densely and extremely delicately punctured. 



Hab. Antananarivo (Mr. Kingdon). 



Logisticus suturalis, n. sp. 



Fuscus, griseo-sericeus ; thorace quadrituberoso. lateribus tuber- 

 culo obtuse conico instructis ; elytris apicem versus modice angus- 

 tatis, sutura bene determinata, apice truncatis. 



Long. 10-12 lin. 



Somewhat intermediate in form and appearance between 

 Artelida sericea, GueVin (Ic. Regne An. p. 252, Toxotus), and 

 Logisticus rostratus, Waterh. (Cist. Ent. ii. 1878, p. 291) ; 

 its affinities, however, are with the latter, with which it 



