new Species of Histeridae. 



181 



sed differt pronoto distincte punctulato et elytris lateralibus 

 leviter punctulatis. 

 L. 3 mill. 



Orbicular, convex, black, shining ; the forehead flat, ob- 

 scurely punctulate, with the stria well-marked and passing 

 laterally along the epistoma, which is not depressed like that 

 of E. Lucasi, Mars. ; the thorax convex on the disk, depressed 

 at the sides, very finely punctulate ; the elytra, striae short, 

 basal, nearly obsolete, punctulate, except on the disk ; the 

 propygidium and pygidium finely and evenly punctulate ; 

 the prosternum, striae and the surface between them some- 

 what built up from the sides, with the keel or space between 

 the striae a little convex, the striae are sinuous between the 

 coxae and the punctuation of the keel is stronger than that of 

 E. cirtensis, Lew. (see Ann. & Mag. Nat. Hist., Sept. 1892, 

 pi. xix. fig. 3) ; the last-named species, moreover, has a flat 

 keel, with the adjacent lateral parts on a level with it. 



Above this species is extremely like E. Lucasi, Mars., but 

 beneath the prosternum corresponds more with E. kabylice 

 and cirtensis. 



Hab. Bougie. I found a single example on the 30th April 

 last in a nest of Aphanogaster testaceopilosa. 



Sternoccelis acutangulus, Lew. 



Sternoccelis acvtangulus, Lew. Ent. Month. Mag. xxiv. p. 164 (1887) : 

 Ann. & Mag. Nat. Hist. ii. p. 146 (1888). 



This species and S. punctulatus, Lucas, are peculiar in 

 having the tibial grooves for the reception of the tarsi 



Efo. 2. 



markedly excavated. Figure 2 gives an outline of S. acut- 

 angulus and an enlarged drawing of the intermediate tibia. 



