Mr. R. EK. Turner on Fossorial Hymenoptera. 285 
second, the two combined much longer than the fourth ; the 
recurrent nervures almost meeting on the cubitus. 
Hab. Mackay, Q. (Turner), November to March; Ku- 
randa, Q. (Turner), May. 
This belongs to the group of small species with a broadly 
truncate radial cell and a short fourth abscissa of the radius, 
to which N. obliquetruncata also belongs. From that species 
it is separated by the straight apical margin of the radial 
cell, by the shorter second abscissa of the cubitus, by the 
greater approximation of the recurrent nervures, and by the 
mueh narrower pygidial area. In obliquetruncaia the sides 
of the pygidial area diverge strongly towards the base, but 
only slightly in the present species ; the surface of the area 
is bare throughout in the present species, only on the basal 
half in obliquetruncata. ‘his is the Australian form of the 
wide-ranging LV. pompiliformis, Costa. 
Lyroda queenslandensis, sp. n. 
6. Niger; scapo subtus tegulisque testaceis; mandibulis basi, 
abdomine segmentis primo secundoque, tibiis, tarsis anticis, 
tarsisque intermediis et posticis hic illic infuscatis, terrugineis ; 
alis hyalinis, venis ferrugineis. 
Long. 6 mm. 
3. Clypeus short and broad, minutely punctured and 
clothed with silver pubescence, with a distinctly longitudinal 
carina, the apical margin feebly excised in the middle. 
Head opaque, not visibly punctured, a very delicate frontal 
sulcus reaching the anterior ocellus. Second joint of the 
flagellum equal to the third, twice as long as the first. Inner 
margins of the eyes parallel, the posterior ocelli as far from 
the eyes as from each other. Thorax opaque, minutely and 
closely punctured ; a transverse, crenulate, impressed line at 
the base of the scutellum, the latter less opaque than the 
mesonotum. Median segment a little shorter than the basal 
breadth, slightly narrowed to the apex, very finely granulate, 
with a distinct median carina ; the sides of the segment very 
closely and minutely striato-punctate ; the surface of the 
posterior truncation rather coarsely transversely striated, with 
a shallow median sulcus. Abdomen shining, microscopically 
punctured ; dorsal segments 1-4 with an apical band of very 
short and sparse white. pubescence. ‘Third abscissa of the 
radius distinctly longer than the second, the third cubital cell 
less than twice as long on the cubitus as on the radius ; first 
recurrent nervure interstitial with the first transverse cubital 
