288 ME. C. J. GAHAK ON THE COLEOPTEEA 



the striae of the elytra are deeper, witli the intervals raised, 

 convex, and somewhat costate in appearance ; the outermost 

 costa, which begins only after about the anterior fourth, is from 

 this point distinct up to the apex ; two or three of the costse 

 nearer the suture are also tolerably distinct throughout the 

 greater part of their course, being interrupted by punctures only 

 at remote intervals ; the intermediate costse are more frequently 

 interrupted by punctures, especially near the base, where the 

 elytra present a somewhat irregularly rugose appearance. 



Tenebeionid^. 



25. ZoPHOSis, sp. 



Histeeomimus, gen. nov. {Erodiidarum). 



Mentum transversum, antice truncatum. Mandibulse pro- 

 minentes, intus ad marginem inferiorem bidentatse, supra ante 

 medium oblique leviterque carinatse. Labrum fere occultum, 

 apice pilosum. Clypeus medio paullo productus, et antice tri- 

 dentatus. Oculi sat parvi, laterales, occulti. Prosternum medio 

 elevatum, et antice paullo productum. 



This genus is allied to, and rather closely resembles, Histero- 

 morphus, Kraatz ; but the prothorax is much more strongly 

 convex above ; the clypeus is less produced in front, and is tri- 

 dentate at the anterior margin ; the prosternum is somewhat 

 raised along the middle, and is slightly produced in front, so 

 that the anterior margin of the presternum is bisinuate, instead 

 of being simply arcuate ; the eyes are less elongated than those 

 of Ilisteromorphus, and resemble those of Spyrathus. 



26. Histeeomimus aeabicus, sp. n. 



Niger, nitidus ; capite antice densius fortiusque punctulato, 

 supra minus dense minutiusque punctulato ; prothorace ample, 

 dorso valde convexo, sparse rainutissime punctulato, lateribus a 

 basi ad medium paullo divergentibus, deinde rotundato-conver- 

 genlibus, angulis antero-lateralibus subobtusis ; elytris sub- 

 nitidis, baud punctatis, vage undulatim rugosulis ; prosterno 

 rugoao-punctato ; meso- metasternoque et abdominis processu 

 intercoxali subrugosis ; abdomine nitido, sparse punctate. 

 Long. 9, lat. 6 mm. 



This species much resembles Ilisteromorphus plicatus, Kraatz, 

 of which it has nearly the same outline, but may be easily 

 distinguished by the more convex pronotum, the tridentate 

 anterior clypeal margin, and other characters mentioned in the 

 generic diagnosis. 



