416 
T. Rowland E. Turner on 
closely punctured; with sparse grey pubescence, closer and longer 
on the head than on the thorax; antennae no longer than the 
thorax and median segment combined, scarcely narrowed to the 
apex, the joints slightly arcuate beneath, the third joint of the 
flagellum more than half as long again as the second, the carinae 
between the antennae only slightly oblique ; the posterior ocelli a 
little further from the eyes than from each other. Pronotum 
short, strongly narrowed anteriorly ; scutellum strongly convex ; 
median segment rounded. Abdomen elongate, tapering slightly 
at the extremities, shining and shallowly and finely punctured, 
segments 2-5 strongly constricted at the base, the first segment 
with a longitudinal sulcus from the base to the middle. 
Hypopygium lanceolate, produced into a long acute spine on each 
side at the base. Second recurrent nervure received very near 
the base of the third cubital cell; second abscissa of the radius 
longer than the third. 
Black ; the apical half of the clypeus, marked with black on 
the centre, the base of the mandibles, the margins of the 
pronotum, the interantennal carinae, a spot on the tegulae, a small 
longitudinal spot on the posterior portion of the mesonotum, a 
small spot on the scutellum and a minute one at each of the 
anterior angles, a transverse line on the postscutellum, a spot on 
each side of the first abdominal segment and a short narrow band 
on each side of segments 2-5 near the apical margin pale yellow ; 
legs fuscous brown, lighter on the anterior pair, calcaria white. 
Wings hyaline, nervures fuscous, the stigma pale testaceous. 
Length 10 mm. 
Hah. Queensland, Cairns (ex coll. Perkins ); 2$. 
Very near hipao'titus. Turn., especially in the male sex, 
but is a smaller and more slender species. In hipartitus 
the female has a strong tubercle on the pronotum. The 
colour of the legs in the male seems to be a constant 
difference in the limited number of specimens I have seen, 
though in some species of Thynnidae this character is 
quite unreliable. 
Acolothynnus InchrymosuSy sp. nov. 
d- Clypeus slightly advanced and narrowly truncate at the 
apex, finely and closely punctured and thinly clothed with whitish 
pubescence. Head and thorax closely punctured rugose ; antennae 
as long as the thorax and median segment combined, of almost even 
thickness throughout, the third joint of the flagellum nearly half 
as long again as the second, but slightly shorter than the fourth. 
