256 Annals of the South African Museum. 



more prominent, although the ante-ocular ridge is nearly similar, 

 and the four last joints of the antennae are nearly hexagonal instead 

 of conical, and decrease gradually in length, so that the last one is 

 hardly half the length of the third. 



TRICORNIGEK, 



Plate VI., fig. 6, 6. 



Nigro piceus, sub-nitidus, tarsis, articulis ultimis antennarum 

 palporumque castaneo-rufis ; caput in medio impressum, crebre 

 punctulatum, $ cornibus porrectis, gracilibus tribus capitis longi- 

 tudine aequalibus, armato, antico sub-ensiforme, reliquis ante oculos 

 positis, ad apicem compressis atque valde incurvis ; ? caput inerme ; 

 prothorax antice nonnihil rotundatim attenuatus, lateribus hand 

 ampliatis, prope basim perparum attenuatus, basi sinuatus, ubi apice 

 nonnihil angustior, supra modice convexus, totus marginatus, angulis 

 rectis, baud prominulis, punctis profundis confertis obsitus ; elytra 

 oblongo-ovalia, elongata, prothorace basi nonnihil, post medium fere 

 tertio latiora, triplo longiora, supra convexa, anguste punctato-seriata, 

 interstitiis punctis minus acervatis seriatis; subtus fortiter punctatus; 

 pedes glabri, femoribus densius punctatis. Long. 11-13 mm. ; lat. 

 4| 5 mm. 



Hab. Cape Colony (Bushmanland). G. Alston. 



TRIBE ADELOSTOMIDJE. 



GEX. MACHLA, Herbst. 

 MACHLA AGEESTIS. 



Nigra, capite prothoraceque crebre punctatis, punctis squamis 

 repletis, elytris indumento squamoso ochraceo-terreno dense vestitis ; 

 caput sparse punctatum, vertice leviter impressum, lobis ocularibus 

 modice productis ; prothorax longitudine tertio latior, apice circu- 

 latim emarginatus, basi vix sinuatus, longe pone medium lateraliter ub 

 angulo antico rotundato ampliatus, deinde versus basim rotundatus, 

 baud constrictus, supra modice convexus, marginibus laterum modice 

 incrassatis, recurvis, setulosis, infra vix canaliculatis, lateribus ipsis 

 anguste sulcatis ; scutellum glabrum ; elytra antice prothoracis basi 

 latitudine sequalia, longe pone humeros perparum ampliata, ubi pro- 

 thorace fere quarto latiora, supra nonnihil convexa, postice declivia, 



