546 NEW SPECIES OF AUSTRALIAN COLEOPTERA, xiii., 



denser punctures, shagreened surface, ttc. The doubling of the 

 medio-basal depression of the pronotunj is fairly distinct when 

 viewed obliquely from Ijehind, but rather indistinct from other 

 directions. The tip of the pygidium is highly polished. 



CaCOCHROA MARGINICOLLIS, n.Sp. 



(J. Black, antennae and palpi castaneous. Sterna and hind 

 part of hind femora with dense, stramineous hair, all tibiie with 

 a fringe of similar hair, rest of legs with numerous stiff setae, 

 sides of abdomen moderately clothed towards base. 



Head with fairly numerous, sharply defined, but not very 

 large punctures between eyes, becoming crowded and rugose on 

 clypeusjals<j with numerous minute punctures on the intervening 

 spaces; clypeus with sides moderately dilated from base to near 

 apex, and then rounded, with the apex feebly incurved to middle. 

 Club about as wide as the head across eyes. Prothorax rather 

 lightly transverse, sides not conspicuously bisinuate, base twice 

 the width of apex, strongly trisinuate, median sinus slightly 

 posterior to and narrower than the others; sides with punctures 

 about the size of those on clypeus, but not so dense, becoming 

 sparser and smaller towards and almost absent from middle of 

 disc, in addition with numerous, minute punctures. Scntellum 

 with very minute punctures, and a few larger ones (but still 

 small) on sides. Elytra not much wider than prothorax; with 

 irregular rows of shallow punctures, sides posteriorly and apical 

 slope irregularly strigose; suture distinctly elevated from about 

 the middle, the apex lightly mucronate. Abdomett gently 

 flattened along middle; pygidium strongly concentrically strigose. 

 Mesosternal process produced to between front coxse, and rather 

 obtusely pointed. Front tibiie tridentate, the two smaller teeth 

 rather obtuse, middle pair triangularly bidentate at apex and 

 with two long spurs, hind pair tridentate at apex, but two of 

 the teeth small and round, the spurs unequal, and slightly longer 

 than on the middle pair. Length, 21-22 mm. 



llab. - Northern Queensland (Dr. E. W. Ferguson), Cape York 

 (Macleay Museum). 



With the general appearance of Ablacopus ater, and of large 



