272 



This species differs from C. sphcdroides as described by Mr. 

 Hope in respect of its granular protborax and non-pilose 

 elytra. It differs from the insect that I suppose to be- 

 C. sphceroides, inter alia, by its larger size, deep black colour,, 

 non-pilose elytra — (it is just possible that the few examples I 

 have seen were abraded) — and especially by the wide flat 

 interstices of the striae on the elytra. 



Port Lincoln, in sandy places. Eare. 



CiEDiOMOEPHA, gen. nov. 

 Antennarum articulus IP' 10° minor; prothorax basi baud 

 bisinuatus, marginibus lateralibus latis ; tibiae intermediae^ 

 et posteriores externe denticulatae ; metasternum brevis- 

 simum ; corpus suborbiculare. 

 In other respects I do not observe any difference in the 

 characters from those of Ccedius as given by M. Lacordaire in 

 the " Genera des Coleopteres." The orbicular shape and the- 

 very short metasternum are the most striking features. From 

 Solas (which is not known to me, except by description) this 

 genus may be at once distinguished by the strong anterior tri- 

 angular emargination of the clypeus, by the presence of a 

 distinct (though small) scutellum, by the posterior four tibiae- 

 not being " simple," and by the form of the antennae. 

 C. australis, sp. nov. Piceo-nigra ; antennis, palpis, elytrorum 

 marginibus et pedibus piceo-rufis ; capite prothoraceque 

 crasse squamose nee crebre punctulatis ; elytris obscure 

 striatis, striis crasse, interstitiis fortiter crebrius rugose^ 

 punctulatis ; subtus crasse crebrius punctulata. 

 This insect is sparingly beset with very short and but little 

 noticeable hair-like scales of a pale colour, which are a little- 

 condensed about the sides of the prothorax ; the prothorax and 

 elytra are both ciliated with rather long hairs. The sculpture- 

 of the elytra is very peculiar. The entire surface (rather than 

 the interstices as such) is pretty closely covered with strong- 

 coarse puncturation ; on this a fairly-defined system of striae- 

 seems to be added, with their own serial punctures, which are 

 evidently larger than (though somewhat mixed up with) the 

 punctures of the general surface. The anterior tibiae are very 

 strongly and triangularly dilated from the base to the apex, 

 the width across the apex being quite half the length. The 

 external margin above the middle is cut into teeth varying in 

 size and number from one large tooth to four or five small 

 ones. The intermediate tibiae are rather strongly, the hind 

 tibiae more finely, denticulate externally. The underside of 

 the tarsi resembles the same in Ccedius. The general form re- 

 sembles that of Cytilus. 

 Widely distributed in South Australia. 



