184 ON THE AUSTRALIAN CLIVINIDES, 



B lac kburni group. 



Size small, form cylindrical. Head large, convex; occiput 

 short, wide; eyes not prominent; facial sulci recurved; clj^peus 

 with angles of median part very lightly advanced beyond wings, 

 these with external angles rounded, but marked; supra-antennal 

 plates projecting strongly beyond clypeus. Prothorax longer than 

 broad, anterior line wanting. Elytra with fourth and fifth stria? 

 confluent at base. Presternum with intercoxal part attenuate 

 anteriorly, sulcate on base Anterior tibiae 4-dentate. 



The facies of this species, the short wide head, the long naiTow 

 cylindrical prothorax and elytra, the non-prominent eyes, &c., 

 have caused me to separate C. hiackhurni from C. heterogena, 

 Putz., and form a distinct group for it. 



Clivina blackburxi, n..sp. 



Narrow, parallel, cylindrical. Head large, facial sulci recurved, 

 eyes very depressed; prothorax longer than broad, anterior line 

 wanting : elytra lightly punctate-striate, fourth stria joining 

 fifth at base, interstices depressed, eighth carinate at base, narrow 

 and carinate on apical curve; anterior tibiae 4-dentate. Piceous 

 brown. 



Head large, convex; vertex smooth; front finely punctate: 

 clypeus not divided from front, declivous to median part; this 

 depressed, truncate-emarginate, its angles projecting lightly and 

 obtusely beyond wings, lateral ridges short, wide, distinct; wings 

 subquadrate, with external angles rounded; supra-antennal plates 

 long, lightly rounded externally, projecting sharply and decidedly 

 beyond wings of clypeus, bordered; a longitudinal ridge extending 

 backwai'ds from base of clypeal wings; facial sulci lightly 

 impressed, an elongate impression extending backwards from 

 their anterior part; facial carinte distant from eyes, short; eyes 

 depressed, deeply set in head, hardly projecting; orbits foi'm- 

 ing a thick ridge above eyes, projecting sharply but lightly 

 from head behind. Antennae moniliform, incrassate; joints 5-11 

 very short, transverse, compressed. Mentum deeply emarginate; 



