23-4 ON THE AUSTRALIAN CLIVINIDES, 



Robust, elongate-oval. Head strongly transversely impressed 

 behind vertex; antennae moniliform; mandibles short: elytra 

 oblong-oval ; striae deep, entire ; lateral cavities of peduncle 

 punctate; metasternum and metasternal episterna short; anterior 

 tibiae 3-dentate, Black, shining; under surface minutely shag- 

 reened. 



9. Head smooth, narrowed to a neck behind eyes; lateral 

 margins sloping obliquely and evenly forwai'd from a little 

 before eyes; a deep oblique impression dividing clypeus on 

 each side from supra-antennal plates — these impressions some- 

 times turning inwards and dividing the clypeus from the front at 

 each side: clypeus not divided from front in middle, convex, 

 declivous to anterior margin; this bordered, deeply truncate- 

 emarginate; wings concave, strongly advanced, widely rounded at 

 apex, sloping gently to median part on inner side; supra-antennal 

 plates large, convex, not divided from the wide convex facial 

 carinae; facial sulci strongly impressed; eyes convex, deeply 

 enclosed in orbits; these large, strongly protuberant (about 

 two-thirds size of eyes) behind eyes; supra-orbital punctures 

 distant from eyes; temporal region strongly rugulose; gulae 

 finely rugulose. Antennae stout, moniliform, incrassate; joints 

 5-10 short, strongly compressed. Palpi with apical joint 

 thick, oval. Prothorax smooth (faint transverse striolaj notice- 

 able under a lens), a little longer than broad (3-7 x 3*5 mm. \ 

 narrowed anteriorly (ant. width 3 mm.), depressed, shortly 

 declivous to base; sides very lightly rounded; posterior angles not 

 marked; anterior margin emarginate, widely and obtusely trun- 

 cate on each side of neck; border narrow, reflexed on sides; 

 lateral basal impressions weakly developed or obsolete; anterior 

 line deeply impressed. Elytra a little wider than prothorax 

 (7-7 X 3-8mm.), subdepressed; sides lightly rounded; base narrow 

 and subemarginate between humeral angles; striae deeply 

 impressed, entire (the inner ones often obsoletely crenulate), 

 fourth joining fifth at base, l)ut not outturned; interstices 

 convex, eighth shortly carinate at base, narrowly carinate 

 on apical curve; border reflexed; lateral channel wide. Pro- 



