Art. XXI. — On some neiv Genera and Species of 

 A ustralian Coleoptera. 



By Rev. T. BLACKBURN, B.A. 



[Eead 14th December, 1899.] 



HISTERID^. 

 Chlamydopsis. 



C. pygidialis, sp. nov. Mas (?). Minus opaca ; nigra, antennis 

 pedibusque ferrugineo-tesfcaceis, elytrorum tuberculis basalibus 

 ad apicem Itete testaceis ; supra crebre sat fortiter, subtus sat 

 grosse, punctulata; setis erectis pallidis sparsissime vestita; 

 capite tuberculis sex biseriatiin longitudinaliter instructo ; pro- 

 thorace fortiter transverse, supra depresso valde ineequali, ab 

 apice retrorsum angustato, lateribus et margine antico reflexis 

 dentibus multis armatis ; elytris singulis tuberculis singulis 

 basalibus permagnis (his ad apicem testaceis) et subapicalibus 

 minoribus instructis, lateribus antics dentibus 4 magnis armatis ; 

 propygidii marginibus lateralibus et postico et linea mediana 

 dentibus magnis serratis ; pygidii marginibus lateralibus dentibus 

 minoribus armatis ; pedibus valde elongatis ; tibiis fortiter 

 compressis, ad apicem oblique truncatis et ad tarsos recipiendos 

 profunde excavatis, apice externo dente magno armato. 



Long. U 1. Lat. 4 1. 



The front margin of the prothorax being very strongly reflexed, 

 its teeth are directed upward \ they consist of a large median 

 one which viewed from behind appears to be extremely obtuse 

 (with its outline more or less toothed) and viewed from in front 

 appears subacute (with its outline not at all toothed), and a 

 much smaller tooth on either side of it which appears acute 

 when viewed from either behind or before. The front angle of 

 the prothorax is very strongly defined though scarcely an acute 

 angle ; the lateral margin is incised by a deep notch at its middle 

 immediately behind which is a small quadrangular lamina-like 

 projection, behind which the prothorax is abruptly narrower 

 in the short interval to the base. The base is strongly and 



