AUSTRALIAN HYMENOPTEBA CHALCIDOIDEA , IV.— GIRAULT. 
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Propodeum with a median carina; postmarginal vein absent. 
Omphalomomyia Girault (Type : O. lividicaput Girauit). 
Antennal club 3-jointed, enlarged, the antennae capitate, the funicle joints wider than 
long. 
Propodeum without a median carina, the postmarginal vein shorter than the 
stigmal. Rhicnopeltella Girault (Type : R. immaculatipennis Girault). 
Antennal club 3 -jointed, not much enlarged, the two funicle joints somewhat longer 
than wide. 
The same. Abdomen conic-ovate. 
Rhicnopeltomyia Girault (Type : R. washingtoni Girault). 
Tribe TETRACAMPINI. 
I have not met with any genera of this tribe in Australia except the following which 
■doubtfully belongs here. The tribe is peculiar and must resemble the Pteromalidae in many 
respects. Of the tribes of Entedoninao, this group seems closest to the Entedonini because 
of the minute stigmal vein and the very long marginal but the elongate body and 6-jointed 
funicle seem quite characteristic. 
DIPARELLOMYIA new genus. 
Female : — Like Panstenon Walker of the Pteromalida? but the antenna? only 10-jointed 
with one transverse ring-joint, the club solid. Marginal vein somewhat longer than the sub- 
marginal, the postmarginal long, the stigmal short but not sessile, about a third the length 
of the postmarginal which is about a third the length of the marginal. Mandibles bidentate. 
Petiole subequal to the hind coxa?. Scutellum with a cross-suture. Propodeum pubescent 
from pin-punctures, with a long mediau carina which is delicate and paired. Segments 2 and 3 
of abdomen subequal, combined occupying half of the surface, the incision between these deep 
across the meson. Hind tibial spurs double, stout and long, unequal, inserted before the tip 
as in the torymid genus Perrisocentrus Crawford nearly but the spurs nearer the tip and not 
rso long Scutellum without grooves. Pronotum distinctly separated. Postmarginal vein not 
broken. Axilla? separated. Hind coxa twice the size of the others. 
Male : — Not known. 
This genus, were it not for the double spurs of the caudal tibia I w-ould place within 
the Diparimn of the Pteromalidso since the abdomen is petiolate and the marginal and post- 
marginal veins very long. The axilla? are not advanced and the genus resembles Etiplectrus , 
yet the tarsi are 5- jo in ted and the tibial spurs not greatly enlarged. It will not go into 
.any of the subfamilies of the Miscogasterida). 
Type : The following species. 
1. DIPARELLOMYIA HAECKELI new species. 
Female: — Length, 1.65 mm. 
Metallic green, the pronotum, parapsides, distal third of abdomen, scutum and axilla? 
purple. Wings hyaline. Legs yellowish brown, the hind coxae concolorous with the thorax. 
Mesopleurum polished, the sutures distinct. Petiole coloured like the legs. Scape cylindrical, 
the club with a short nipple, the first funicle joint over twice longer than wide, longest, 2-4 
subequal, a third shorter, 6 distinctly longer than wide, somewhat longer than the pedicel. 
'Thorax finely shagreened. Scape yellowish except at tip; rest of antenna black. 
Male : — Not known. 
