239 



in corners. Front tibiae strongly triclentate ; claws long, thin, 

 and equal. Length, 16 mm. 



Hab. — Queensland: Maryborough (II. J. Carter from; 

 A. Steven). Type (unique), I. 10766. 



The raised margin of the elypeus forms an almost true: 

 semicircle, as on several species of Aneurystypus, more 

 distinctly so than on C. modest us, or on a species 

 which is probably C. metallicola, with which it would be 

 associated by the simple cephalic horn, but the horn is much 

 longer than on either of those species, and the prothoracic 

 excavation is much larger ; the club of the antennae is as long 

 as in modestus or fortnumi, but not so wide, although less 

 parallel-sided than on the species of Aneurystypus. The horn 

 from its base in front is about as long as the head is wide 

 across the eyes, it curves back well over the front margin of 

 the prothorax. The excavation occupies about half the width 

 and about two-thirds the length of the prothorax, at the 

 middle of its hind border it has a short semicircular extension r 

 the front corners of which, from some directions, appear sub- 

 tuberculate; the front margin is without a median tubercle. 



Metanastes bicornis, n. sp. 

 PI. xxvii., figs. 83 and 84. 



S . Black, highly polished ; parts of appendages' 

 obscurely diluted with red. 



Head widely excavated and with a few punctures between 

 eyes ; with two stout curved horns in front ; elypeus quad- 

 risinuate in front. Antennae ten-, club three- jointed. 

 Prothorax strongly and evenly convex, sides gently rounded 

 and not much wider at base than at apex ; marginal stria 

 narrow, with a small median node near the apex; impunctate. 

 Elytra as wide as prothorax, and about twice as long ; with 

 rather shallow ring punctures in feeble striae, but about apex 

 rather crowded, an almost impunctate space near each side. 

 Prosternum with a strongly elevated, subcylindrical process, 

 crowned with reddish bristles, behind coxae. Front tibiae 

 with three strong, and two or three small teeth ; front claws 

 unequal. Length, 21-22 mm. 



9 • Differs in having the excavation on the head much 

 smaller, the horns reduced to feeble elevations, the small 

 prothoracic node absent, and the front claws equal. 



Hob. — New South Wales (J. S. Clark); Queensland: 

 Yandella (F. A. Gore); Brisbane (C. Wild). Type, 1.10765, 



The fringe at the apex of the hind tibiae is composed of 

 but few short and stout processes (they are too stout to be 

 regarded as setae) but as they are detachable no doubt the 

 hind margin may be regarded as ciliate; this being the case 



