29 



"tauce from tlaeir apex to the apex of tlie pygidium, and are so 

 narrowed beliind that (viewed from above) the hind body is 

 visible on both sides outside the hinder two-thirds of the 

 elytra. The pygidium is most extraordinary. Not far from 

 its base a kind of ridge runs transversely across it, which is 

 gathered up in the middle into an obtuse tubercle. This ridge 

 forms the anterior boundary of a large depression or excava- 

 tion, which is much more shining than the rest of the segment, 

 and is longitudinally divided by a deep furrow. The portion 

 of the pygidium bearing this sculpture is obliquely bent under 

 towards the ventral surface of the hind body. 



A single specimen has been submitted to me by Mr. Eothe, 

 taken, I presume, in the interior of South Australia. I am 

 uncertain as to its sex. 



MACLEAYIA, gen. nov. 



Mentum planum, antice hand emarginatum ; palpi labiales 

 brevissimi, maxillares modici, art° 1° brevi, 2° et 3° subsequali- 

 bus, 4° 3° paullo longiore; labrum vix conspicuum ; clypeus 

 magnus antice subemarginatus, lateribus reflexis, sutura vix 

 conspicua ; antennae 9-articulat8e, sat longse, clava articulis 

 reliquis omnibus conjunctis vix breviore, altero sexu 5, alter o 

 3, articulata ; prothorax transversus, basi rotundato-truncatus ; 

 scutellum magnum fortiter transversum ; elytra prothorace 

 plus duplo longiora, propygidii ad medium attingentia ; hoc 

 €t pygidium perpendicularia ; pedes robusti, tibiis anticis 

 altero sexu 3-dentatis, altero simplicibus apice attenuatis ; 

 iinguiculis simplicibus. 



Of this remarkable genus I possess three specimens taken in 

 "Western Australia by E. Meyrick, Esq. Two of them are 

 sexually similar, and are probably attributable to the same 

 species ; they have the anterior tibiae quite simple, and the 

 antennal club three- jointed. The other has the anterior tibiae 

 tridentate, and the antennal club of five joints, and seems 

 specifically distinct from the other two. I am unable to say 

 which is the male. 



M. singularis, sp. nov. Elongato-ovata ; sat nitida ; nigra, 

 antennis (clava excepta), palpis, tibiis tarsis et elytris jdIus 

 minusve rufis ; supra glabra, prothorace et elytris capillis 

 longis fulvis ad latera fimbriatis ; subtiis sparsim fulvo 

 pilosa ; clypeo (? alterutrius sexus solum) reflexo, antice 

 rotundato-truncato ; hoc et capite fortius sat crebre, pro- 

 thorace conspicue canaliculate fortius minus crebre, scutello 

 transverse magno sparsim minus fortiter ; pygidio propy- 

 gidioque subopacis albo squamosis sparsim fortiter, punc- 

 tatis ; elytris propygidii partem dimidiam tegentibus 

 punctato-striatis, interstitiis latis convexis ; tibiis anticis 



