Nm Fossorial Hymenoptcra from Australia. 427 
Mandibles acute at tlie apex, without a tooth on the inner margin, 
deeply notched near the base on the outer margin. Antennae 
inserted a little nearer to each other than to the eyes, the second 
joint of the flagellum nearly twice as long as the first and a little 
longer than the third. Head coarsely and closely, but shallowly, 
punctured ; the posterior ocelli a little further from the eyes than 
from each other; the inner margins of the eyes parallel, the front 
slightly concave. Thorax closely and rather strongly punctured, 
the pronotum transverse, very slightly depressed below the 
mesonotum, mesopleurae strongly convex. Median segment very 
coarsely longitudinally rugose-striate; much broader than long, 
narrowed posteriorly and vertically truncated, the surface of the 
truncation coarsely transversely rugose-striate, .with a deep median 
sulcus, the sides of the segment obliquely striated. Abdomen closely 
and rather strongly punctured, ovate, broad at the base, the apical 
segment pointed, without a pygidial area. Radial cell rounded at 
the apex, both recurrent nervures received by the second cubital 
cell, the first near the base, the second just before three-quarters 
from the base. 
Black ; the mandibles, tegulae, legs and abdomen ferruginous 
red ; antennae ferruginous, more or less shaded with fuscous. Wings 
hyaline, tinged with fuscous, nervures fuscous, the stigma and costa 
testaceous. Length 8 mm. 
The male differs in having the anterior margin of the clypeus 
almost transverse ; the joints of the flagellum shorter, the second no 
longer than tlie third ; the whole insect more coarsely punctured 
and the apical segments of the abdomen clouded with black. 
Hah. S Australia, Adelaide (ex coll. Perldns ); 
8 ?, 1 
Superficially this species closely resembles Pison 
imfico^'ne, Sm. 
Sphodrotes piloselhis, sp. nov. 
Clypeus short and broad, broadly rounded at the apex, finely 
punctured and clothed with very short pale golden pubescence which 
extends on to the front. Mandibles deeply notched on the outer 
margin. Eyes parallel on their inner margin, separated at the base 
of the clypeus by a distance equal to twice the length of the scape ; 
posterior ocelli as far from each other as from the eyes. Antennae 
inserted almost as far from each other as from the eyes, the second 
joint of the flagellum no longer than the third. Head, thorax, and 
abdomen coarsely and closely punctured ; the dorsal surfaoe of the 
median segment coarsely rugose, with a carina from the base not 
TRANS. ENT. SOC. LOND. 1910.— PART IV. (DEC.) F F 
