'254 Annals of the South African Museum. 



DEROSTROPHUS MAXILLOSUS. 



Eufo-brunneus, nitidus ; caput crebre punctatum, inter oculos 

 conspicue circulatim impressum, manclibulis maris latis, curvatis 

 interne valde concavis, apice tri-dentatis, dente media bifida caeteris 

 longiore ; feminte simplicibus ; pro thorax longitudine hand latior, 

 regulariter rotundatus, apice fere rectus angulis acutis, basi bi- 

 sinuatus angulis prominulis, supra convexus, crebre punctulatus ; 

 elytra prothorace basi nonnihil latiora, triplo longiora, versus apicem 

 attenuata, basi sub-sinuata, humeris prominulis, supra sat convexa, 

 anguste punctato-striata ; corpus subtus crebre punctulatum, seg- 

 mentis abdominis $ quatuor in medio flavo penicillatis ; pedes 

 breves, graciles, leves. Long. 10-11 mm. ; lat. 4 mm. 



Hab Cape Colony (Carnarvon). B. G. Alston. 



DEROSTROPHUS LATICOLLIS. 



Piceus, antennis pedibusque rufo-brunneis ; caput creberrime 

 rude punctatum ; antennae medium corporis baud attingentes ; pro- 

 thorax late rotundato ampliatus, longitudine tertio latior, ad basim 

 perparum sinuatus, angulis posticis acutis, prominulis, anticis fere 

 rotundatis, basi apice fere quarto latior, supra modice convexus, 

 dorso in medio anticeque crebre punctulato, punctis laterum elon- 

 gatis, fere strigillatis ; elytra elongata, sub-oblonga, basi prothorace 

 nonnihil angustiora, pone medium perparum ampliata ubi protho- 

 racis latitudine aequalia, supra convexa, distincte punctate striata, 

 interstitiis impunctatis ; subtus nitidus, glaber, confertim punctatus. 

 Long. 9^- mm. ; lat. 4 mm. 



The male is unknown to me. This species is easily recognisable 

 owing to the width of the prothorax, which is much broader than on 

 the other species known hitherto. 



Hab. Cape Colony (Robertson). Dr. W. F. Purcell. 



DEROSTROPHUS DISSIDENS. 



Piceo brunneus, sub-nitidus, pedibus antennisque dilutioribus, his 

 fere longitudine dimidii corporis ; caput crebre punctatum ; pro- 

 thorax ab apice prope basim fere orbicularis, ubi brevissime 

 attenuatus, angulis posticis prominulis, supra modice convexus, 

 crebre profundeque punctatus ; elytra elongata, sub-oblonga basi 

 prothoracis latitudine maxima uequalia, pone medium vix latiora, 

 supra convexa, distincte striato-punctata, punctis confluentibus, 



