510 



of the others, and these are scarcely longer than the basal 

 joint. 



A male from Minnipa Hill appears to be an aberrant 

 member of this species, it differs from the other males in being 

 slightly narrower, the bloom apparently absent (a slight 

 amount of bloom, however, can be noticed from certain 

 directions, suggesting that the balance has been rubbed off) 

 and the setae on the pygidium much less dense (although still 

 fairly numerous). In general appearance this male is very 

 close to a co-type of sinuaticollis , but that species is without 

 short erect setae on the pygidium. 



Group 6. 



Haplonycha opaca, n. sp. 



PI. xxxiv., fig. 25. 



Castaneous-red and opaque; under-surface and legs with 

 dense, somewhat reddish hairs, a few straggling hairs in 

 lateral gutters of pronotum; membranous fringe of elytra 

 very short; pygidium with rather shorthand not very dense 

 semidecumbent setae. 



Head with dense but small punctures behind clypeal 

 suture; clypeus with denser and larger punctures about base, 

 but becoming small towards apex, front face with a single 

 row of large setiferous punctures across middle, but irregular 

 on sides. Antennae with fourth joint not much longer than 

 third, seventh-ninth forming a club. Maxillary palpi with 

 penultimate joint much shorter than apical. Protkorax 

 almost four times as wide as the median length, sides strongly 

 rounded, front angles feebly produced and rounded off, hind 

 ones completely rounded off; punctures sparse and very small. 

 Elytra very feebly dilated to beyond the middle, geminate- 

 striae feebly denned; punctures small and sparse, suture 

 unarmed. Pygidium gibbous towards apex ; with crowded 

 and rather small punctures about base, becoming sparser 

 posteriorly. Basal joint of hind tarsi slightly longer than 

 second. Length, 21-25 mm. 



Hob. — South Australia : Karoonda to Peebinga (G. E. H. 

 Wright), Murray River (H. S. Cope), Darke Peake (P. G. 

 Dolling). Type, I. 4636. 



On dissection the penultimate joint of the maxillary 

 palpi is seen to be a trifle shorter than the antepenultimate, 

 and as the dorsal surface of the body is not iridescent it 

 appears desirable not to refer the species to Group 4, and if 

 not to that group it could only be referred to E of Group 6, 

 but it is strikingly different to pectoralis and pygmaea ; in 



