Neio Fussorial Hymenoptera from Australia. 417 
the interantennal carina depressed in the middle, almost transverse. 
Pronotum almost as broad as the head, scarcely narrowed anteriorly, 
the anterior margin strongly and broadly emarginate ; scutellum 
closely punctured, with an obscure median carina, broadly rounded 
at the apex. Median segment closely punctured, rounded. Abdomen 
elongate, the sides almost parallel, the segments punctured and very 
strongly constricted at the base, the sixth segment with an acute 
spine on each side at the apical angles beneath ; hypopygium rather 
short, very broad, not narrowed at the apex, ending in three long 
spines, the central spine the longest. Second abscissa of the radius 
more than twice as long as the third, second recurrent nervure 
received at about one-eighth from the base of the third cubital cell. 
Black; the base of the mandibles, a narrow transverse line close 
to the apex of the clypeus, a small transverse spot on each side above 
the base of the antennae, the anterior margin of the pronotum very 
narrowly and the postscutellum whitish yellow; calcaria whitish. 
Wings hyaline ; nervures fuscous. Length 9 mm. 
Hah. South Australia, Adelaide. 
Differs from dimidiatus, Westw., in tlie narrower clypeus, 
tlie broader hypopygium and the colour; from armiger. 
Turn., in the much broader hypopygium and the broadly 
emarginate pronotum. The very broad hypopygium 
separates it from umhrip)ennis, Sm., as well as the smaller 
size and colour differences. 
Zaspilothynnus rufolutius, Tinn. (Plate L, fig. 1 fig. 2 ^.) 
Thynnus rufoluteus, Turn., Ann. Mus. Nat. Hung., 1910, 
p. 114. 
d. Clypeus longer than In-oad, convex at the base, deflexed 
towards the apex, the apical margin broadly truncate, finely longi¬ 
tudinally striated ; the labrum produced far beyond the clypeus, 
broad and rounded at the apex, without an eniargination. Mandibles 
slender, with a very feeble tooth on the inner margin near the apex. 
Head finely and closely punctured, the interantennal prominence 
narrowly rounded at the apex, almost touching the base of the 
clypeus. Antennae shorter than the thorax and median segment 
combined, of about equal thickness throughout, inserted as far 
from each other as from the eyes. Thorax very finely and closely 
punctured, pronotum not as broad as the head, narrowed anteriorly, 
the margin raised; scutellum convex, broadly rounded at the apex. 
Median segment minutely punctured, oblique. Abdomen elongate, 
longer than the head, thorax and median segment combined, tapering 
slightly towards the apex, minutely and sparsely punctured, the 
