South African Coleopterous Fauna. 291 



ampliatus, pone medium diagonaliter attenuatus, basi apice nonnihil 

 latior, angulis posticis rectis, anticis valde prominulis, parum 

 convexus, lateribus deflexis, leviter marginatus, in medio disci 

 profunde crebreque punctatus, ad latera late sed minute scrobiculatus; 

 elytra antice latitudine prothoracis, late ovalia, medio prothorace 

 quarto latiora, versus leviter attenuata, modice rotundata, supra 

 convexa, postice dehiscentia, margine lateral! acuta distincte reflexa, 

 postice baud deplanata, rugosula, granulis minimis nonnulis 

 adspersa, costulis vix distinctis utrimque praedita, sutura vage 

 rufescente ; pedes breves, rugosuli, parce pubescentes. Long. 

 15-18 mm. ; lat. 9-1 U mm. 



In this species the prothorax is more ampliated laterally than in 

 any other species of this group. 



Hab. Zambesia ; Buluwayo (F. C. Selous) ; between the 

 Limpopo and Zambesi Eivers (T. Ayres). 



PSAMMODES SIMILIS. 



Niger, sub-nitidus, antennis tarsisque ferrugineis ; caput antice 

 late, vertice minute punctatum ; prothorax longitudine tertio latior, 

 ante medium rotundato ampliatus, pone medium diagonaliter 

 attenuatus, basi apice nounihil latior, angulis posticis fere rectis, 

 anticis acutis, prominulis, antice lateraliterque marginatus, dorso 

 modice convexus lateribus sub-deplanatis, crebre minuteque 

 punctatus, ad latera rugosus ; elytra ovalia, prothoracis basi 

 latitudine eequalia, medio parum ampliata, versus apicem modice 

 attenuata, margine laterali acuta, vix reflexa, apice haud deplanata, 

 supra convexa, postice sat longe dehiscentia ; sat crebre minute 

 granulata, vitta suturali sat lata, distincta, sanguinea ; pedes breves, 

 rugosuli, vix pubescentes. 



$ . Segni. abdom. tribus basalibus in medio late fulvo tomentosis. 



Hab. Zambesia (Salisbury, Mesahi Eiver). G. A. K. Marshall. 



Differs from the preceding in the shape of the prothorax, which 

 is not quite as much ampliated before the median part, the punctures 

 on the median part are not so deep nor quite as broad, and the sides 

 are rugose rather than scrobiculate ; the elytra are more elongate 

 and not so wide, the sutural band is also more distinct. 



PSAMMODES DOLOSUS. 



Niger, nitidus, antennis, palpis tarsisque ferrugineis ; caput crebre 

 rudeque punctatum ; prothorax longitudine fere duplo latior, apice 



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