525 



mentum strongly impressed along middle with coarse punc- 

 tures. Prothorax moderately convex, sides gently rounded, 

 feebly arcuate towards base ; punctures less crowded than on 

 head, but similar in size. Elytra with rather dense and large 

 punctures, divided off into irregular double and triple rows 

 by feeble striae. Pygidium with coarse punctures. Front 

 tibiae strongly tridentate. Length, 7-8 mm. 



Rah. — Northern Territory: Daly River, Darwin (H. 

 Wesselman). Type, I. 7817. 



The elytral striation is rather more defined than on the 

 preceding species, and somewhat similarly appears to divide 

 off the punctures into irregular rows; but it differs from that 

 species in the less conspicuously bilobed apex of clypeus, hind 

 tooth of front tibiae larger and more acute, and hind angles 

 of prothorax not quite the same, as from above they appear 

 to be almost rectangular. In Blackburn's table would be 

 placed in B, but the character of the basal edging of the 

 pronotum that he used for C (fallax and lepidus) and CC 

 (Ivgvbris) seems an unworkable one, it in certainly somewhat 

 finer on lugubris than on the others, but the degree is not 

 very pronounced ; the present species has the edging as on 

 lugubris, from which it differs in having the clypeus (as seen 

 from above) slightly incurved to its middle instead of 

 truncate; it is considerably smaller than fallax and lepidus; 

 in general appearance it is very close to suspiciosus , but the 

 front tibiae are tridentate. 



OCNODUS SIMPLEX, n. sp. 



Bright reddish-castaneous ; antennae and palpi paler, 

 club almost flavous. Upper-surface glabrous, except for a 

 few setae in the lateral gutters. 



Head with crowded punctures, uniform throughout 

 except for a polished medio-basal space; clypeus rounded on 

 the sides, truncate in front; labrum deeply notched, scarcely 

 projecting in front of clypeus, and distant from summit of 

 same ; mentum with large but very shallow punctures. Pro- 

 thorax moderately convex, sides gently rounded; punctures 

 somewhat irregular. Elytra with striation well defined only 

 near suture and sides; punctures large and mostly in irregular 

 rows. Front tibiae tridentate. Length, 9J-11 mm. 



Hab. — North -we&teirn Australia: Junction of Fitzroy 

 and Margaret Rivers (Calvert Expedition). Type, I. 570. 



In general appearance somewhat like small pale specimens 

 of fallax:, but front tarsi of male with claw-joint quite 

 symmetrical, and the pygidium of the female very different 

 to that of the female of fallax. From above the hind angles 

 of the prothorax appear to be somewhat obtuse, but from 



