311 



conspicuously wider, with the vaguest remnants of depressions, 

 and elytra very vaguely infuscated ; from caviceps it differs 

 in its wider prothorax, less conspicuous elytral costae, and 

 absence of conspicuous markings. In general appearance it is 

 much like inquisitor and lateralis, but the concave face is at 

 once distinctive from those species. Mr. Dodd took three 

 specimens, but the apical joint of the antennae is missing 

 from each of them. 



OXACIS CALOPTERA, n. Sp. 



PI. xiii., fig. 28. 



Flavous, three apical segments of abdomen inf uscated; 

 elytra with sharply-defined blackish markings, tips of man- 

 dibles black. Rather densely clothed with pale, depressed 

 pubescence. 



Head widely concave from base almost to apex; punc- 

 tures inconspicuous; mandibles simple. Antennae long and 

 thin, eleventh joint slightly longer than tenth, and with 

 scarcely a trace of doubling.. Prothorax distinctly longer than 

 wide, sides moderately dilated about apex, base bilobed and 

 lightly upturned, with three feeble discal impressions; with 

 dense and small but rather sharply-defined punctures, sparser 

 about middle than elsewhere. Elytra much wider than 

 prothorax ; with feeble remnants of costae ; surface shag- 

 reened. Length, 7^-9 mm. 



Hab. — North-western Australia: Ashburton River. 

 Type in National Museum, from C. French; co-type, I. 6750, 

 in South Australian Museum. 



With the concave head of the two preceding species and 

 of caviceps, but with sharply-defined and apparently distinc- 

 tive elytral markings , on the type these are in three parts : a 

 portion occupying about one-fifth of the base, with a jagged 

 posterior outline, and two portions narrowly separated by the 

 suture, and occupying on each side about one-half of the 

 length of the elytra, and near the suture about one-third of 

 their length. A second specimen has elytral markings exactly 

 as on the type, but with the head infuscated between the 

 eyes, and with traces of a median prothoracic vitta. As the 

 apical segment of the abdomen is rather long, with the tip 

 rounded, and as no genitalia are protruding from either, 

 they are probably females. 



Oxacis apicicollis, n. sp. 



Of a pale dingy flavous, some parts infuscated. Rather 

 densely clothed with short, depressed, pale pubescence. 



Head gently convex; with dense and small punctures, but 

 sparser between eyes than elsewhere; mandibles simple. Eyes 



