new Species o/'Histeridse. 279 



punctures most conspicuous behind the anterior angles, fine 

 at the base, on the basal edge before the scutellum are two 

 arched impressions free of punctures ; the elytra, outer humeral 

 stria apical and scarcely dimidiate, inner wanting, oblique 

 basal very fine and close to the first dorsal, dorsal 1-3 com- 

 plete, 4 apical but reaching the middle and it has a short 

 basal appendage, 5 apical very short and somewhat puncti- 

 form, sutural apical but reaching quite to the middle and 

 from the apex the stria3 diverge from the suture, its base is in- 

 dicated by a puncture ; the propygidium is distinctly punctured 

 at the sides and minute punctures are intermixed with the 

 larger ones, the minute punctures alone extend over the disc ; 

 the pygidium is similarly but less conspicuously punctured, 

 and on either side near the middle of the margin is a fovea ; 

 the prosternum is bistriate, the strife do not meet anteriorly 

 and they diverge posteriorly from the coxse to the base ; the 

 mesosternum is bisinuous anteriorly and narrowly transverse, 

 it posterior limit is marked by a bent not crenulate stria. 



Differs from circulifrons, Mars., in size, more oval outline, 

 less convex form above, frontal stria less strong and not 

 semicircular, and the thoracic scutellar impression is distinctly 

 biarcuate and free of punctures. 



Hab. Kuilu, French Congo (Mocquerys, 1892) . 



Ulster mombasanus, sp. n. 



Oblongo-ovalis, convexus, niger, nitidus ; fronte punctata, stria 

 integra antice recta ; pronoto lateribus bistriato ; elytris striis 

 1-3 integris, 4 apicali dimicliata, 5 brevissima, suturali utrinquo 

 abbreviata ; propygidio pygidioque dense punctatis; mesostemo 

 antice marginato ; tibiis antice 3-dentatis. 



L. 7 mill. 



Oblong-oval, convex, black and shining ; the head punctu- 

 late at the base, rather densely and rugosely punctate behind 

 the stria, stria complete and straight anteriorly, epistoma 

 and mandibles also densely and rugosely punctured, the last 

 are not marginate; the thorax, lateral marginal stria ex- 

 tremely fine, external lateral ceasing behind the eye, interstice 

 narrow, internal, feebly sinuous laterally, complete behind 

 the head, and distinctly sinuous behind the eyes, interstice 

 rather wide and punctulate, with some irregular stride or 

 rugosities at and behind the anterior angle, the sides are 

 microscopically punctulate ; the elytra, striaj, external 

 humeral wanting, internal apical and dimidiate, oblique basal 

 extends outwardly beyond the inner humeral, dorsal stria3 

 1-3 complete and rather wide, best marked on the ed°-e 



