South African Coleopterous Fauna. 323 



SUB-FAMILY LAMIINI. 



? TRIBE PBOSOPOCEBINI. 



DINOCEPHALUS, gen. nov. 



Mandibulae validae, robustae, apice arcuatae ; caput latum, antice 

 quadratum, fronte vertical!, tuberculo antennario vix elevato, oculi 

 sat lati, fere divisi ; antennae corpore quarto longiores, scapo articulo 

 tertio nonnihil breviore, magis quam duplo crassiore, hoc sequent! 

 tertio longiore, 4-10 baud sensim decrescentibus, ultimo prsecedenti 

 vix duplo longiore ; prothorax cylindricus ; elytra prothorace vix 

 latiora, ad apicern paullum attenuata, apice conjunctim rotundata, 

 modice convexa ; coxae anticae modice approximate, processus pro- 

 sternalis nullus, mesosternalis antice baud dilatatus, modice rotun- 

 datus, basi distincte incisus ; pedes mediocres, femoribus leviter 

 clavatis, tarsis dilatatis, articulo primo sequenti vix longiore. 



The shape of the jaws and that of the head approximate that of 

 Sternotomis and Zograplius, and the antennae are of the same shape 

 and shorter, but the absence of prosternal process militates against 

 the genus being placed in the Sternotomini or Tragoceplialini ; the 

 antennal tubercle is reduced to a mere border, dividing the eye very 

 nearly in two. 



DlNOCEPHALUS ORNATUS, 



Plate VII., figs. 2, 2A. 



Nigra, pube cinerea subtilissime violacea obtectus, maculis flavidis, 

 nigro marginatis ornatus ; caput latissimum, antice verticale, quad- 

 ratum, pone oculos ad collum tuberculo parvo utroque munitum, 

 vertice anguste canaliculatum, antice linea elevata longitudinal!, 

 maculis septem frontalibus, vitta apicali sinuata in medio bi-incisa, 

 atque plaga in genis ornatum ; prothorax cylindricus, postice antice 

 nonnihil angustior, intra basim transversim impressus, constrictus, 

 vix punctulatus ; maculis quatuor in dorso plagaque lateral! utrinque 

 ornato ; scutellum triangulare, apice obtuse rotundatum ; elytra 

 profunde punctata, prothoracis parte antica haud latiora, basi leviter 

 sinuata, humeris sub-prominulis, ab humeros apice attenuata, ubi 

 conjunctim rotundata, maculis rotundatis 11 in singulo dispositis ; 

 corpus subtus tomento cinereo violaceo vestitum, pectore vitta 

 lateral! a thorace continuata, segmentisque abdominis singulo plaga 

 triangula atro-cincta ornato. Long. 16 mm. ; lat. 5f mm. 



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