BY THE REV. T. BLACKBURN. 845 



front and back of the vertex not failing altogether in the inter- 

 mediate part, whereas in other examples the middle of the disc 

 (from about the level of the middle of the eye hind ward almost to 

 the base) is quite devoid of such punctures, having only a few 

 exceedingly fine ones. 



This species must be very like B. j^^ctniceps, INIacl., (from 

 Sweer's Island). If I understand the description of that species 

 rightly, however, the thorax is differently sculptured in front ; 

 and in any case the front tibise are very different, having five 

 well-defined external teeth increasing in size from the topmost 

 downward, without any trace whatever of a sixth, while planiceps 

 is described as having six external teeth on the fiont tibiae, of 

 which the basal two are subobsolete. 



Northern Territoiy of South Australia ; collected by Professor 

 Tate. 



B. FENESTRATUM, Sp.nOV. 



Rotundatum ; rufum vel piceuni ; supra glabrum ; clypeo in 

 medio vix in tuberculum elevato, lineis 4 ex hoc quasi tuberculo 

 prodeuntibus, scil. 2 ad angulos clypei anticos, 2 ad basin anten- 

 narum ; capite toto dense rugose crasse punctato, vertice medio 

 carina trans vei'sa arcuata instructo ; prothorace ad latera fortiter 

 punctulato, fossulato, vix evidenter canaliculato (canali obsolete 

 punctis quibusdam magnis indicato) ; antice vix retuso, parte 

 antica fovea magna subquadi'ata punctulata instructa ; elytris 

 usitate striatis, striis pi'ofundis leviter vel vix evidenter punctu- 

 latis ; tibiis anticis externe 6 vel 7-dentatis, dentibus apicalibus 4 

 solis distinctis. Long. 4 lines (vix), lat. 2f lines. 



The fovea on the front declivous part of the pi-othorax is of 

 jjeculiar form, being nearly square on the surface but ending 

 almost in a point at the bottom as though a quadrangular 

 pyramid had been cut out ; in some specimens this is very sharply 

 defined, in others less so, but in all that I have seen some (at 

 least) of the declivities of the excavation are sharply triangular. 

 In the specimen I have described the front tibiae have the apical 



