286 MR. R. E. TURNER ON THE [Feb. 15 



scattered punctures and a longitudinal frontal sulcus ; the 

 posterior margin shallowly emarginate. Pronotum shining, with 

 a few small punctures, a little broader than long, the sides almost 

 parallel, the anterior margin feebly rounded in the middle. 

 Median segment less than half as long as the pronotum, broadened 

 from the base, the apical angles subtuberculate, obliquely truncate 

 posteriorly, and very minutely punctured. Abdomen micro- 

 scopically punctured, with a few large scattered punctures ; the 

 basal segment with a transverse carina before the apex, separated 

 by a deep and broad groove from the raised apical margin ; second 

 segment with five even and strong transverse carina?, including 

 the raised apical margin ; fifth ventral segment coarsely longi- 

 tudinally striated. Pygidium deflexed, long, exceedingly narrow, 

 almost linear, slightly expanding at the apex, which is very 

 narrowly rounded ; the dorsal plate much shorter than the ventral 

 and very feebly and narrowly trilobed at the apex. Anterior 

 coxa? not concave ; intermediate tibia? scarcely broader than the 

 posterior ; basal joint of intermediate tar-si normal, not flattened. 



Black ; the mandibles at the base, the second dorsal abdominal 

 segment, and the spines of tibia? and tarsi fusco-ferruginous. 



Length 8-10 mm. 



Hob. South Perth, W. A. (H. M. Giles). December. 



" On Leptospermum, occasionally on Eucalyptus. Plentiful 

 every season." {Giles.) 



Thynnoides lanio, sp. n. 



d . Olypeus large, broad and subemarginate at the apex, 

 sparsely punctured ; the extreme apex of the labrum only visible ; 

 outer margin of the maxilla? fringed with long hairs. Head 

 finely and very closely punctured ; the interantennal prominence 

 pointed at the apex and connected by a short and broad carina 

 with the base of the clypeus. Antenna? as long as the thorax 

 without the median segment, tapering very slightly towards the 

 apex. Thorax and median segment finely and closely punctured, 

 most sparsely on the scutellum, most closely and finely on the 

 median segment ; the pronotum narrowed anteriorly, the anterior 

 margin slightly raised ; median segment short, rounded at the 

 sides, obliquely sloped from just behind the postscutellum. 

 Abdomen elongate fusiform, the segments feebly constricted at 

 the base, rather closely and not very finely punctured ; the basal 

 segment oblique from near the apex to the base, divided by a 

 median sulcus which nearly reaches the apex ; the apical dorsal 

 segment deflexed and strongly punctured ; the groove between 

 the two basal ventral segments broad but rather shallow, the 

 sixth ventral segment without spines. Hypopygium with a tooth 

 on each side at the basal angles, thence triangular to the base of 

 the acute apical spine. Anterior coxa? not concave. 



Black, with sparse grey pubescence, long and close on the 

 median segment ; the clypeus, mandibles (except the apical teeth), 

 the margins of the eyes interrupted on the summit, a short oblique 



