573 



but are probably variable. The punctures in the prothoracic 

 excavation are sparse and simple. 



NOVAPUS ARMATUS, U. sp. 



PI. xxxiv., figs. 45, 46. 



d . Dark reddish-brown; head and parts of legs black. 

 Upper-surface glabrous, under-surface and legs with rather 

 dense rusty-red hair, upper parts of pygidium with numerous, 

 rather short, depressed setae, and a few hairs. 



Head with coarse crowded punctures; with a strong 

 suberect horn, slightly bifid at its tip. Antennae ten-, club 

 three-jointed, seventh joint very thin. Prothorax about one- 

 fourth wider than long, sides dilated from base to apical third, 

 and then strongly incurved to apex, apex gently arched, with 

 the front angles not separately produced, with a large (almost 

 circular) discal cavity, transversely impressed in its front, 

 with punctures at its back, elsewhere with sparse and rather 

 small punctures, but becoming larger towards base and sides. 

 Elytra with sutural and lateral striae well-defined, the former 

 crenulate ; with rows (mostly regular) of rather large punc- 

 tures becoming smaller posteriorly, apex with numerous 

 smaller punctures. Pygidium with numerous fairly large 

 punctures, becoming crowded at base. Length, 21-2H mm. 



Hab. — Western Australia ( — Jung), Swan River (Black- 

 burn's collection). Type, I. 169. 



A specimen of this species was labelled by Mr. Tepper as 

 Xovapus armatus (apparently a manuscript name of the late 

 Rev. T. Blackburn). It appears to be allied to ritgicauda, but 

 differs from the description of that species in having the base 

 of the pygidium with a fringe of hair, and most of its surface 

 with rather large isolated punctures. The prothoracic excava- 

 tion has outlines much as on crassus, but is shallower and 

 differently sculptured. The cephalic horn from some 

 directions appears to be truncate at its tip, but reallv feebly 

 brfid. 



NOVAPUS ADELAIDAE, Blackb. 



PI. xxxiv., figs. 42-44. 



A female from Ooldea appears to belong to this species, 

 is rat 

 specimens. 



but is rather larger than usual ; the figures are of normal 



Cryptodus gigas, n. sp. 



PI. xxxiv., fig. 40. 



d- Blackish; pygidium, parts of under-surface and of 

 legs more or less obscurely reddish. Upper-surface glabrous 

 and shining, under-surface sparsely and irregularly clothed. 



