426 REVISION OF THE AMYCTERIDES; V., 



MOLOCHTUS HERCULES Fei'g. 



Trans. R. Soc. S. Aust., xxxix, p. 74, 1915. 



Hah. — W.A.: Kookynie, Kalgoorlie, Cue. — Central Australia: 

 Hermannsburg. 



MoLOCHTUS ROTUNDICOLLIS, n.sp. 



J". Size comparatively small; elongate-ovate. Black; without 

 clotliing; setye light brown, for the most part absent from the 

 upper surface. 



Head separated from rostrum above by a deep V-shaped im- 

 pression, becoming indistinct towards the sides; strongly convex, 

 the intercristal portion separated from the I'est of the head by a 

 transverse impression ; the extreme posterior portion finely 

 transversely strigulose, elsewiiere finely and irregularly reticu- 

 late, intercristal puncto-granulate; supraorbital crests composed 

 of two, small, dentiform tubercles, the posterior slightly the 

 larger, conjoined at base. Rostrum widely and deeply concave 

 above; the lateral margins raised, curved inwards and broadened 

 at base: convex in profile, anterior end bluntly acuminate, less 

 so than in M. hercules; upper surface rather coarsely punctate. 

 Prothorax (5x6 mm.) broad, strongly rounded on sides, the 

 anterior lateral denticles hardly traceable, the postero-lateral 

 ones small, but evident; anterior margin without ocular lobes; 

 disc widely depressed in centre, with a feeble, deeper, median 

 impression traceable anteriorly ; closely set with flattened 

 granules, separated by tine, impressed lines arranged in a con- 

 centric manner around each half of the disc, the central impres- 

 sions on each side running transversely; sides granulate above, 

 the granules becoming smaller and fewer towards the coxje; with 

 impressed lines arranged concentrically with those on disc. 

 El3^tra(10 x 7mm.) broad, flattened on disc, sides rather strongly 

 rounded at base, more gradually to apex; apex not acuminate; 

 base not emarginate, humeral angles rounded; striae narrow, 

 punctures small, the ridges between not granulate; interstices 

 not raised, with small, obscure granules more definite on declivity 

 and towards sides. Undersurface feebly concave over meta- 



