448 STUDIES IN AUSTRALIAN ENTOMOLOGY, XVll., 



with the bottom roughly rugose-foveate. Tarsi with the first 

 joint of the four posterior spinulose on outer side above the 

 usual lateral row of spinules. Length, 34'5; breadth, 14-2 mm. 



^a6.— West Australia : Onslow District. Type in National 

 Museum, Melbourne. 



9. A second specimen, taken by Mr. Horace Brown, between 

 Mullewa and Yalgo, is in my collection; it has the prothorax 

 more rounded on the sides, anterior and posterior angles less 

 produced. Length, 32 mm. 



This species is very distinct from C./renchi SI., the conspicuous 

 differences being the shape of the prothorax, and the convex 

 elytra with costate interstices and wide foveate sulci. Com- 

 paring it with a specimen (g) of C./renchi, given to me by Mr. 

 F. P. Spry, the following differences are to be noted - head with 

 two supraorbital setae; prothorax with greatest width further 

 back, sides narrowed to both base and apex in an oblique curve 

 (in C frenchi, the prothorax is widest at anterior third, sides 

 roundly narrowed to apex, and obliquely narrowed to base, so 

 that it is widely truncate-cordate); elytra far more convex, not 

 depressed on disc, the interstices costate, sulci foveate (in C. 

 frenchi, the interstices are wide and lightly convex; and the 

 foveas of the striae are smaller and punctiform), lateral channel 

 wide and deep, lateral and apical declivities much more declivous. 



Tribe Nomiini. 

 Genus M e o n i s. 

 Meonis amplicollis, n.sp. 

 M. niger Sloane (non Castelnau), Proc. Linn. Soc. N. S. Wales, 

 1910, xxxiv., p.827. 



Q. Elongate-oval. Prothorax broader than long, roundly 

 ampliate on sides, very strongly sinuate posteriorly, basal angles 

 rectangular; elytra strongly 4-striate (fifth stria obsolete). Black, 

 nitid. 



9. Head ordinary (2*5 mm. across eyes), strongly transversely 

 impressed behind ; eyes very prominent. Prothorax cordate 

 (3-5 X 3-7 mm.); base and apex of equal width (2 5 mm.); sides 



