pression at base, bifurcating at sides, the anterior branch forming 

 the gap between the external ridges and frontal crests, the 

 posterior branch extending on to these latter. Head fiat and 

 rugulose in front ; frontal crests narrow, very elevated, obliquely 

 truncate at summit. Prothorax almost as long as broad 

 (4 X 4-25 mm.), truncate in front and behind; dorsal surface fiat, 

 strongly and very closely tuberculate; median line lightly marked; 

 a strongly marked narrow transverse impression near anterior 

 margin, and another near base ; lateral margins produced and 

 quadridentate between these impressions (third projecting 

 tubercle of side very small) ; vertical part of sides convex, 

 lightly rugulose ; a dentiform tubercle on each side of the disc in 

 front of anterior transverse line, and a strong conical tubercle 

 on each side of median line near base. Elytra oval (10 x 6-25 

 mm.), evenly rounded on sides, perpendicularly declivous behind ; 

 base truncate between shoulders, gently but greatly declivous to 

 peduncle ; apex widely rounded ; the elytra lightly dehiscent at 

 suture, and each ending in a short triangular projection ; disc 

 depressed, but slightly convex transversely and longitudinally ; 

 strise continuous, a little uneven ; lirst seven interstices with a 

 row of small very closely-set regular setigerous granules (these 

 rows having a tendency to become double on parts of first three 

 interstices) ; the granules of fifth and sixth interstices near the 

 base, and of all the insterstices on postei-ior part, beconung 

 tuberculiform ; a rather strong tubercle at each shoulder at 

 beginning of fifth interstice. Tarsi broad, sliort. 



Length, 16-5 ; breadth, 6-25 nm}. 



Habitat. — Barrow Range, Central Australia (August, 1891). 



There is only a single example of this well-marked species I 

 unfortunately the abdomen is broken, so that I have been unable 

 to ascertain the sex, though I believe it to be the male. I know 

 of no species that is dosely allied to this ; in the shape of both 

 rostrum and forehead, it shows a relationship to the genus 

 Molochtus, which its author, Mr. Pascoe, thought , more allied to 

 Talaurinus. In this T do not agree, for it seems to me the 

 affinities of Molochtus are more to Accmtholophus and Cubi- 

 corhynchtis. 



Cubieorhynehus oeeultus, v. ■^p. 



Oblong, convex ; prothorax granulate ; elytra striate, the in- 

 terstices granulate; anterior coxa; not contiguous. Black with 

 cinereous scales. 



Rostrum short. Head convex behind ; front fiat, a few faintly 

 marked rugosities towards vertex ; frontal crests not prominent, 

 continuous" with, but a little more raised than, external ridges of 

 rostru)n, truncate behind, conical at apex. 



Male. — Prothorax a little broader than long (4 x 41 mm.). 



I 



