44 MR. R. E. TURNER ON 



secundo transverse decern carinato, area pygidiali longitudinaliter 

 striato ; antennis nigris. 



Long., c? 18 mm.; $ 11 mm. 



<3 . Head broad, distinctly broader than the pronotum ; clypeus 

 convex, narrowly truncate at the apex. Eyes separated at the 

 base of the antennae by a distance equal to nearly three times 

 the length of the scape ; the interantennal prominence very 

 broad, strongly recurved at the sides, almost transverse at the 

 apex and divided by a low longitudinal carina. Head and thorax 

 coarsely rugose ; the anterior angles of the pronotum acutely 

 produced ; scutellum almost flat. Median segment broader than 

 long, strongly sloped, and closely punctured, the sides clothed 

 with long Avhite pubescence. Abdomen elongate, shallowly 

 punctured, the segments slightly constricted at the base ; sixth 

 ventral segment with a spine on each side at the apical angles ; 

 seventh dorsal segment not produced into a lamella, coarsely 

 striated, the strife rounded towards the apex. Hypopygium 

 triangular, with a strong apical spine, the basal angles produced 

 into broad rounded teeth. Second abscissa of the radius about 

 equal to the third, second recurrent nervure received at two-fifths 

 from the base of the third cubital cell. Hind tibiae spinose. 



5 . Clypeus convex, without a carina ; head subrectangular, 

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

 long, distinctly convex, with fine scattered punctures. Pronotum 

 twice as broad as long, sparsely punctured, the anterior margin 

 straight, with a transverse row of large punctures each bearing a 

 long hair. Scutellum much broader than long ; median segment 

 broad, no longer than the scutellum, the two combined no longer 

 than the pronotum. Abdomen finely and closely punctured ; 

 first dorsal segment transversely rugose, with an apical transverse 

 carina ; second dorsal segment with ten transverse carinas, the 

 two apical carinse stronger and further apart than the others. 

 Sixth dorsal segment about twice as long as broad, the sides 

 parallel till near the apex, when they converge sharply, the apex 

 produced into a point, the ventral plate extending beyond the 

 dorsal and broadly rounded. Fifth ventral segment coarsely 

 longitudinally striated. The pygidium is not constricted at the 

 base. 



Hab. Yallingup, S.W. Australia; November. Capel River, 

 S.W. Australia. S 2 i n C0 P- 



This species differs from most of the genus, in the male sex by 

 the absence of the flat lamella on the seventh dorsal segment, 

 and in the female by the shape of the pygidium which is not 

 narrowed at the base. The hind and intermediate tibiae of the 

 female are much broadened and strongly spinose, but the basal 

 joint of the intermediate tarsi is not broadened. In both sexes 

 the species is closely related to Z. nigripes Guer., differing in the 

 male by the larger head, coarser sculpture, and acute angles 

 of the pronotum ; in the female by the colour of the median 

 segment and the different shape of the pygidium. 



