Neiu Fossorial Hymeno'ptera from Australia. 425 
dorsal segment and the whole of the two basal ventral segments 
orange yellow ; antennae and pygidium dull ferruginous, the apex 
of the flagellum fuscous above. Wings hyaline, fusco-hyaline along 
the costa, nervures fuscous, the stigma testaceous. Length 11 mm. 
Hah. Queensland, Cairns (ex coll. Perkins). 
Liris (hicalis, Sm. 
Larrada ducalis, Sm., Journ. Linn. Soc. Zool., p. 84, 1861. 
Hah. Queensland, Cairns (coll. Perkins). 
This wide-ranging species has not previously been 
recorded from Australia. It ranges westward as far as 
N. India. The Australian specimens are rather small, 
about 17 mm. in length, the wings a little paler, and the 
anterior margin of the clypeus less deeply notched in the 
middle. 
Tachysphex adelaidae, sp. nov. 
9. Clypeus shining, very sparsely punctured, the apical margin 
very slightly rounded, almost transverse. Antennae inserted a little 
nearer to each other than to the eyes, slender, the second joint of the 
flagellum about twice as long as the first, but a little shorter than 
the third. Eyes separated on the vertex by a distance equal to the 
length of the first and second joints of the flagellum combined. 
Head smooth and shining, with a very obscure frontal sulcus, with 
a large shallow depression behind the posterior ocelli, the eyes 
almost touching the posterior margin. Thorax smooth and shining, 
the pronotum depressed below the mesonotum, but not very steeply 
sloped, the mesonotum without lateral furrows. Median segment 
opaque, a little shorter than the mesonotum, the posterior truncation 
very finely transversely striated. Abdomen highly polished beneath, 
subopaque above, the four basal segments very feebly depressed at 
the apex, more broadly in the middle than at the sides ; the pygidial 
area shining, very sparsely punctured, narrow and pointed. Comb 
of the anterior tarsi fairly long, the spines feeble. Tliird ab.scissa of 
the radius longer than the second, equal in length to the fir.st; the 
first recurrent nervure is received nearer to the second than to the 
base of the second cubital cell. 
Black; tegulae testaceous brown, mandibles and apex of the 
scape beneath fusco-ferruginous ; legs bright ferruginous, coxae and 
trochanters black. Wings hyaline, faintly tinged with fuscous, 
nervures fuscous. Length 8 mm. 
Hob. South Australia, Aclelaide (ex coll. Perkins). 
Near T. pugnator, Turn., from which it may be dis¬ 
tinguished by the colour of the legs, the narrower space 
