42 MR. R. E. TURNER ON 



6 ■ Olypeus strongly convex at the base, obliquely depressed 

 towards the apex, closely punctured, the apical margin broadly 

 truncate. Head closely punctured, the interantennal prominence 

 very broad, feebly rounded at the apex, divided by a longitudinal 

 carina which is continued to the base of the clypeus. Thorax 

 closely punctured ; the anterior angles of the pronotum not 

 pi-oduced ; median segment as long as broad, rounded, with two 

 parallel longitudinal grooves on the posterior slope. Abdomen 

 elongate, closely and shallowly punctured, the segments very 

 slightly constricted at the base ; seventh dorsal segment longi- 

 tudinally striated, produced at the apex into a flat subtriangular 

 lamella. Hypopygium linguiform, without an apical spine, 

 obliquely striated above, the basal angles produced into blunt 

 teeth. Sixth ventral segment with a spine on each side at the 

 apical angles. Claspers truncate at the apex, with a fringe of 

 long hairs. Second abscissa of the radius a little shorter than 

 the third, second recurrent nervure received just beyond one- 

 third from the base of the third cubital cell. Pubescence on the 

 head and dorsulum pale fulvous, whitish elsewhere. 



$ . Clypeus punctured - rugose, without a carina. Head 

 shining, with a few scattered punctures, subrectangular, nearly 

 half as broad again as long, rounded at the posterior angles, the 

 front coarsely punctured. Pronotum broader than the head, 

 nearly twice as broad as long, opaque and shallowly punctured ; 

 the anterior margin very shallowly emarginate, with a few large 

 setigerous punctures. Scutellum and median segment shining, 

 sparsely and finely punctured ; the scutellum broader than long, 

 broadly rounded at the apex, dorsal surface of the median 

 segment shorter than the scutellum. Abdomen shining, sparsely 

 punctured ; first dorsal segment closely obliquely striated ; second 

 with about ten transverse carinse gradually decreasing in height 

 from the apex to the base, the basal ones low and not very 

 distinct. Fifth ventral segment longitudinally striated ; pygidial 

 area elongate-ovate, longitudinally striated, the strife converging 

 at the base. Intermediate tibiae dilated, basal joint of inter- 

 mediate tarsi moderately broadened, 



Hah. Yallingup, S.W. Australia ; October to December. J $> 

 in cop. 



This is nearest to Z. dilatatus Sm., from which the male differs 

 in the sculpture and colour of the clypeus, in the distinctly 

 coarser puncturation, and in the position of the second recurrent 

 nervure. which is received further from the base of the cell than 

 in dilatatus. The female differs conspicuously from dilatatus in 

 the sculpture of the first dorsal segment and in the shape of the 

 pygidium ; in the former character it approaches carbonarius Sm., 

 but the pygidium is not constricted at the base in either this 

 species or dilatatus. It is remarkable that although dilatatus is 

 one of the commonest species about Perth in December, I did 

 not take it at Yallingup, whereas I secured a good series of males 

 of the present species, though not many females. This species 



