new Species of Histeridaj. 83 



more or less complete. As sucli it is similar to H. tor?'idus, 

 Mars., but it differs by the dorsal strise being deeper and 

 crenulate_, by the pygidia being evenly and almost densely 

 punctured (the pygidium having a grade of punctures 

 slightly smaller), and by the mesosternal edge being almost 

 straight and only very feebly sinuous. 



Hab. Belgian Congo. In the Museum of the Belgian. 

 Congo and in my own collection. 



Hister vadatus, Lewis, 1908. 



Ovalia, convexus, niger, nitidus ; fronte stria antice recta ; pronoto 

 bistriato ; elytris striis l-4integris, 5 obsoleta, suturali utrinquo 

 abbreviata ; propygidio pygidioque punctatis ; mesosterno stria 

 marginali in medio interrupta ; tibiis anticia S-dentatis, apicali 

 dente immani. 



L. 7 mill. 



Oval, convex, black and shining; the head, frontal stria 

 complete, straight anteriorly and rounded off on either side ; 

 the thorax, marginal stria very fine, two lateral well-marked 

 and parallel to each other, the outer stria terminates behind 

 the eye, inner continued behind the head ; the elytra, 

 humeral stria wanting, dorsal 1-4 complete, 5 indicated by 

 a few apical points, sutural abbreviated at both ends, the 

 ends turn away from the suture ; the pj^gidia are clearly not 

 closely punctured with microscopical points in the inter- 

 spaces; the prosternum, lobe marginate and impunctate ; 

 the mesosternum is feebly sinuous anteriorly and the 

 marginal stria is interrupted in the middle ; the anterior 

 tibiae 3-dentate, apical tooth very large. 



The above is similar to H. obesus, Fahr., and others by the 

 thorax being bistriate laterally and the terminal tooth of the 

 anterior tibia being very large. 



Hab. Meru : at the river Ngare na nyuki, 23nd Nov., 

 1905. 



Hister guinensis, Payk. Mon. 1811. 



In reference to my note, Ann. & Mag. N. Hist. vi. p. 54 

 (1910), Prof. Sjostedt informs me that there is no specimen 

 to represent Paykull^s species in the Stockholm Museum ; the 

 name is there, but no pin-hole near it. I think therefore my 

 sternal characters may be taken as belonging to guinensis. 

 This year is the centenary of the publication of Paykuli's 

 Monograph, the first on the family and treating of 93 

 species. 



6* 



