BY ROWLAND E. TURNER. 189 



much broader, median segment coarsely and sparsely punctured, 

 obliquely truncate from some distance behind mesonotum; first 

 abdominal segment short and broad, without transverse strise; 

 carina? on second segment rather more irregular and stria? on 

 pygidium rather stronger. 

 Hab.— Perth, W.A. 



133. T. (Lophocheilus) INCONSTANS Sm. 



Thynnus inconstans Sm., Cat. Hym. B.M. vii.p.26,n.66,1859( c J). 



Thynnus signatus Sm., I.e. p.44, n.126, 1859(9). 



(J. Clypeus produced and broadly truncate at apex, rounded 

 at base. Head, thorax, and median segment finely rugulose, disc 

 of mesonotum and scutellum punctured. Abdomen sparsely 

 punctured, slender, first segment oblique and very narrow at 

 base, with a strong sulcus from base not reaching apex; segments 

 2-5 with a deeply impressed transverse line near base, apical 

 margins depressed, leaving a raised mark before apex curved on 

 sides and deeply emarginate in middle. Hypopygium with a 

 strong rounded projection on each side at basal angles, thence 

 elongate- triangular to apical spine. 



Q. Head much broader than long, strongly rounded at posterior 

 angles, deeply and rather sparsely punctured, with a faint, longi- 

 tudinal, frontal sulcus. Pronotum rectangular, about half as 

 broad again as long, almost smooth, with a few large punctures, 

 each with a hair springing from it, along anterior and lateral 

 margins. Median segment smooth, obliquely truncate posteriorly. 

 Abdomen smooth, with a few large scattered punctures, first 

 segment vertically truncate at base, with a transverse carina just 

 before apex and apical margin raised. Second segment with 

 many transverse carina?, those near apex strongly raised, those 

 near base irregular and not very distinct. Pygidium deflexed 

 and vertically truncate posteriorly, longitudinally striated, about 

 twice as long as broad, sides parallel. Fifth ventral segment 

 longitudinally striated on apical half. 

 Hab. — S. E. Australia. 



