212 MEMOIRS OF THE QUEENSLAND MUSEUM. 
Fore wings hyaline but with a distinct fuscous or smoky loop curving from the base of the 
marginal vein convexly to the stigmal vein and when curving up to the latter suffusing 
indistinctly across to the costal margin in the form of a branch. Legs and tegule fuscous; 
also the scape. Postmarginal vein very long, nearly as long as the marginal. Antennal club 
solid, long, acuminately truneate from one side, the first funicle joint narrower than the 
others, the second longest but not as long by far as the long pedicel, which is subequal to the 
club; no real ring-joint, eleven joints. Eyes, head and thorax pilose. Posterior tarsi white, 
their tibize whitish at tips. 
Ifabitat: Uobart, Tasmania. Reared from wood. 
Type: No. 1.1252, South Australian Museum. A tag and a slide 
2. PLATYGERRHUS ANNULICORNIS Girault. Female. 
Length, 5.20 mm. 
Dark metallic green and punctate, the wings hyaline, the coxe concolorous except at. 
tips, the legs brownish yellow; antenna black, just before tip encircled by a broad ring of 
yellowish white (distal three funicle joints); stigmal vein shorter than usual. Second funicle- 
joint nearly as long as the pedicel, the club oval; all funicle joints longer than wide. 
Habitat: Hobart, Tasmania. Reared from wood. 
Type: No. I. 1253, South Australian Museum. ‘Tag and slide. 
3. PLATYGERRHUS TASMANIENSIS Girault. Female. 
Length, 3 mm. 
The same as australiensis but-smaller and the fore wings in addition to bearing the 
same pattern also have their tips fuscous and the backward branch of the loop is more distinet.. 
Moreover, in this species the second funicle joint is shorter and also the pedicel in relation 
to the club. 
Habitat: Hobart, Tasmania. Reared from wood. 
Type: No. I. 1254, South Australian Museum, two females on pins and a slide. 
4. PLATYGERRHUS FULVIVENTRIS new species. 
Female:—Length, 3 mm. Abdomen long and conical, twice the length of the thorax 
or nearly, the ovipositor not extruded. Cephalic femur edentate and only moderately enlarged, 
as with my other Australian species. Also, the scutellum is simple, as with the others. Club- 
solid. Scape slender. 
Dark ewneous green, the wings hyaline, the venation pale brown, also the abdomen,. 
the latter washed lightly over with metallic greenish. Ovipositor valves and antenne black. 
Legs concolorous with abdomen, the caudal and middle tibia and all tarsi lemon yellow. 
Vertex reticulate. Scrobes deep, forming a triangle. Thorax densely, shallowly sealy- 
punctate. Axille a little advanced. Segment 2 of abdomen longer than 3, incised at meson 
of caudal margin, not especially lengthened. Propodeum glabrous, shorter at meson, there 
with a distinct carina; no lateral carine but a line of punctures runs along both cephalic 
and caudal margins. Mandibles tridentate, the third tooth barely formed. Pedicel distinctly 
Jonger than any of the funicle joints, nearly twice longer than wide at apex; funicle 1 longer- 
than wide, narrower than the rest, 2 slightly longer than 1, slightly longer than wide; 3-5 
longest, subequal, somewhat longer than wide; 6-8 subequal, each a little shorter than 5, 
Club as long as the preceding three joints taken together. Legs slender. Proximal joint of 
caudal tarsus long and slender, the tibial spurs distinct but not stout. Parapsidal furrows 
deep; pronotum transverse, not very distinetly separated. Stigmal vein moderately short, 
the postmarginal two and a half times longer than it, somewhat shorter than the marginal. 
