72 ON THE SCARITID.E OF NEW HOLLAND, 



lobes, in the form of the labial palpi and last joint of the maxil- 

 lary, in the size of the paraglossce, and in the form of the labium. 

 From the Indian genus OTygnatJius of Dejean, it is removed by 

 the form of the mentum, which is described by Dejean in the 

 latter genus as, " plane et legerement trilobe." It is evident, 

 however, that Dejean had not closely examined the trophi of 

 Oxygnathus, the description being altogether so loose, and the 

 labium stated to be unknown. 



I believe that a more accurate knowledge of Oxygnathus will 

 exhibit a very close affinity between it and Geratoglossa. 



Of the history and habits of the two species forming this 

 genus, nothing is known, they are evidently " fossores " like all 

 the rest of the family, but I have a species, just received from 

 Port Phillip, which, I think, will be found to belong to this 

 genus, and, I am assured by the collector, Mr. Masters, that it is 

 only found under stones in very wet places. 



1. — Ceeatoolossa rugiceps. (n. sp.) 



Nigra subnitida capite subdepresso rugoso setoso ante oculos 

 bilobato subreflexo, thorace subsetoso posticc subrotundato 

 dorso canaliculate, elytris parallelis thorace bis longioribus 

 7-striatis stria tertia punctis duobus indistinctis. 



Long. 7 lin., lat. 1^ lin. 



Hab. Murrumbidgee. 



The head is rather longer than broad ; the anterior angles 

 consisting of a flattened, bilobed, somewhat reflexed plate, a broad 

 longitudinal impression on each side separates this flattened ex- 

 tension of the head from the forehead. The frontal surface is 

 rather flat, and covered with rugte or lengthened setigerous 

 punctures. The thorax is longer than broad, and rather widen- 

 ing towards the base ; the anterior margin is slightly sinuated, 

 and the posterior angles are rounded ; the surface is of a brilliant 

 black, with some indistinct transverse striolcB ; the dorsal line is 

 distinctly marked, as is also the transverse apical one. The 

 elytra are twice the length of the thorax, and rather con- 

 vex ; the sides are parallel, and the apex is rounded ; there are 

 seven distinct stria) or channels on each elytron, the intervals are 



