307 



Head rather large ; with dense and sharply-defined but 

 rather small punctures, less dense between eyes and on 

 clypeus, and more crowded at base than elsewhere; with a 

 shallow depression in front; mandibles bifid. Eyes large and 

 rather widely notched. Antennae long and thin, eleventh 

 joint slightly shorter than tenth and conspicuously semi- 

 double. Prothorax slightly longer than wide, apical half with 

 rounded and dilated sides, base gently incurved to middle and 

 narrowly upturned ; with a vague medio-basal depression and 

 another towards each side in front, but the whole of the apical 

 half (except the margin) gently depressed ; with crowded and 

 small but sharply-defined punctures. Elytra much wider than 

 prothorax ; surface shagreened rather than with distinct 

 punctures; with vague remnants of discal costae. Apical 

 segment of abdomen triangularly produced in middle. 

 Length, 13 mm. 



Hob. — Northern Territory: King River, March, 1916 

 (W. McLennan). Type in National Museum. 



A dingy species, in general appearance close to Oxacis 

 lateralis, but with bifid mandibles; from G. torrida (to which, 

 however, it is not very close) it differs in being opaque, 

 prothorax considerably wider and with different punctures, 

 elytra with but the vaguest remnants of discal costae, and in 

 many particulars of colour. The pronotum is infuscated 

 throughout, but the infuscation is less pronounced along 

 the middle than on the sides, the vitta on each elytron is 

 rather feeble, and extends from the shoulder to slightly 

 beyond the middle, where it vanishes. 



COPIDITA APICIFUSCA, n. Sp. 



<S . Black or blackish, and flavous. Moderately clothed 

 with short, depressed, pale pubescence, paler on pronotum 

 than elsewhere. 



Head rather convex ; with dense and rather small but 

 sharply-defined punctures about base, becoming smaller and 

 sparser elsewhere; mandibles bifid. Eyes large and shallowly 

 notched in front. Antennae long and very thin, eleventh 

 joint about as long as tenth and very feebly semidouble. 

 Prothorax rather elongate, sides gently rounded on apical 

 half and gently incurved on basal half, base narrowly 

 upturned ; with three shallow discal impressions ; punctures 

 dense and sharply defined but rather small. Elytra almost 

 twice as wide as prothorax at base; each with four feeble 

 costae, of which the fourth is very feeble and third practically 

 absent; with small, dense, asperate punctures and shagreened. 

 Length (rf, 9), 7J-10 mm. 



