Species of Formicarious Histeridas. 153 



S. pectoralis has the prosternal area between the cox^ and the 

 base of the anterior lobe divided in the middle by a_ very 

 prominent transverse ridge ; and if the prosternum is viewed 

 sideways this character will be seen conspicuously. S. i^luri- 

 striatus has a trace of this structure, but it is very feebly 

 brought out. 



1 took this species at Tleracen, in Algeria, near the ruins 

 of Mansourah, on the 20th March last, while snow was 

 falling thickly ; and I had to use my umbrella to shelter the 

 galleries made by the ants, which otherwise would have been 

 filled up and ants and beetles lost sight of. 



SternocoeUs Marseuli, Bris., has the prosternal striae formed 

 on a plan similar to that of Gnathoncus rotundatus, Kugel ; 

 it is a little smaller than maurtianicus and pubescent. 



Satrapes Beitterij n. sp. 



Subcylindricus, convexus, testaceus, nitidus, parce punctulatus ; 



fronte utrinque elevata, sat dense punctulata, clypeo concavo ; 



pronoto in medio convexo, lateribus marginato, angulis anticis 



paulo reflexis ; elytris brevissime setulosis, striis obsoletis, tibiis 



dilatatis. 

 L. 2i miU. 



Taken by Herr Hans Leder at Talyschgebg (Transcau- 

 casus)j and 1 have named it after my friend at Modling. 



This species is larger than talyschensisy paler in colour^ and 

 more parallel in outline. The anterior angles of the thorax 

 are retiexed in the same way, but are more rounded off. The 

 subhumeral strise are wider apart and the dorsal striaa quite 

 obsolete; the propygidium is more clearly angulate at the 

 sides and somewhat densely but finely punctulate. Beneath 

 it is known at once from talyschensis by the lobe of the pro- 

 sternum being on the same plane as the base, by the sternum 

 being narrower between the coxae, and the striee in front of 

 them are brought close together and then pass forwards in a 

 parallel direction. In talyschensis the prosternal strise are 

 marginal, and therefore wide apart. In Sartorii the striaa 

 are more like those of Reitterij but anteriorly they diverge 

 and the lobe of the prosternum is deflexed. This last cha- 

 racter is given by iSchmidt as generic ; as the new species 

 does not possess it, the generic characters must be modified 

 accordingly. 



