309 



specimen has an oedeagus protruding, and another an ovi- 

 positor, and both have the tip of the apical dorsal segment 

 exactly as on the typical form. 



Oxacis caviceps, Blackb. 

 In the description of this species the prothorax was noted 

 as having "latitudine majori sat longe pone medium sita," 

 and again as "at the widest considerably behind the middle." 

 A female co-type (from Lake Austin) has the greatest width 

 of the prothorax at the most one-third from the apex, and in 

 this a second female from Cue agrees with it. 



Oxacis lateralis, Macl. (formerly AnancaJ. 



By the courtesy of Mr. Shewan I have been able to 

 examine the type of the species ; it is a male, and having simple 

 jaws it belongs, by the present system of classification, to 

 Oxacis. There are also other specimens of the species before me 

 from Cairns and Mackay. The dark parts of the prothorax are 

 confined to the sides; the dark vittae of the elytra are some- 

 times confined to the shoulders, but occasionally extend 

 almost to the tips ; the "four obsolete longitudinal lines on 

 each elytron" are sometimes not traceable, and when present 

 are only distinct about the base; the "two large shallow 

 depressions on the anterior half" of the pronotum are much 

 more distinct on some specimens than on others. In general 

 appearance it is strikingly close to inquisitor, but is rather 

 more robust, with the prothorax not widest at the extreme 

 apex, and with considerably larger and sharply-defined 

 punctures; the punctures on the head are denser and slightly 

 larger, but on the elytra they are much the same (as those 

 of inquisitor). 



Oxacis concaviceps, n. sp. 



d . Of a rather dingy flavous, with parts more or less 

 deeply infuscated. Densely clothed with short, depressed, 

 pale pubescence, less conspicuous on pronotum than elsewhere. 



Head strongly concave from near the base to apex of 

 clypeus ; with small and rather inconspicuous punctures ; 

 mandibles simple. Antennae rather long and thin, eleventh 

 joint very slightly longer than tenth, and with scarcely a 

 trace of doubling. Prothorax slightly longer than wide, with 

 three shallow discal impressions; with dense and small but 

 sharply-defined punctures. Elytra almost twice the width of 

 prothorax at base ; with very feeble remnants of discal costae ; 

 surface shagreened. Length ( S , 9)> 6-9 mm. 



9 • Differs in being slightly more robust, apical segment 

 of abdomen slightly longer, with the. tip more rounded, and 

 in the legs and antennae being slightly shorter. 



