Ne) 
=) 
AUSTRALIAN HYMENOPTERA CH ALCIDOIDEA, XII.—GIRAULT. 2 
5. MEGASTIGMUS BRACHYSCELIDIS Ashmead. Female; male. 
Length, 2 mm. Black or dark brown; ovipositor a little shorter than the body; orbits 
broadly, lower part of face, pronotum, parapsides and sometimes the scutum, axille, a transverse 
line back of scutellum, mouth parts except teeth of mandibles and legs (except hind coxe), 
pale yellowish. Abdomen paler beneath and at apex. Antenne brown, scape pale beneath, 
flagellum subclavate, first joint of funicle about one and a half times longer than wide, the 
following joints gradually shortening, joint 7 a little wider than long. Stigma and venation 
brown; wings hyaline. Vertex and mesonotum delicately transversely striate, the scutellum 
and metanotum delicately shagreened. 
The male measures 1.80 mm. Black, shining; orbits and face ventrad of antenna, a 
transverse band on hind margin of pronotum, parapsides caudad, mesal suture of axille, 
extreme tip of abdomen and the legs (except the hind coxa), yellowish. Antenna brown, the 
funicle joints scarcely longer than wide. Wings hyaline, stigma and venation brown-black. 
Habitat: Sydney, New South Wales. Associated with Brachyscelis erista Olliff. 
Type: Cat No. 4879, United States National Museum, Washington, D.C., U.S.A. 
6. MEGASTIGMUS SULCICOLLIS Cameron. Female. 
Length, 1-2.50 mm. 
Yellow; mesonotum, scutellum and abdomen tinged with fulvous, legs paler; flagellum 
darker, more fulvous, the apices of the joints narrowly black; wings hyaline, venation testaceous, 
the stigma long-conical. Tips of mandibles and ovipositor valves black. Extruded portion 
of ovipositor as long as the body. Smooth; thorax finely, closely transversely striated; a 
narrow, transverse furrow before the middle of pronotum and a shorter, wider, more distinct 
one at the apex. Thorax (except propodeum) sparsely clothed with longish, black hairs; 
propodeum more coarsely striated than the thorax. Base of mesonotum, base and sides of 
scutellum and of propodeum, the sides of the latter more broadly, base of the parapsidal 
furrows and the depressions at the sides of the mesonotum, black. 
Habitat: Richmond, New South Wales. Associated with galls on kurrajong. 
Type: Query. 
7. MEGASTIGMUS MACULATIPENNIS (Girault). Female. Genotype ot 
XANTHOSOMOIDES. 
Length, variable but about 2.50 mm. excluding ovipositor, the exserted portion of which 
is about three fourths the length of the body. 
Pale cadmium yellow, the head, pronotum, legs and a transverse spot laterad of the 
mesopostscutellum (the spot cephalad of the propodeal spiracle) contrasting, lighter lemon- 
yellow; also more or less, the produced part of the ventral abdomen. Lateral suture of 
seutellum, the visible (dorsal, lateral) portions of the occiput and the cephalic margin of the 
propodeum, black. Dorsal aspect of abdomen suffused irregularly with brown. Venation black. 
Fore wings hyaline, the globe-like stigmal spot black. Discal ciliation normal and dense, the 
marginal cilia very short. Antennae yellow suffused with much black. Ovipositor brown, the 
valves black. Thorax delicately, transversely wrinkled. Funicle 1 widening distad, nearly 
twice longer than wide at apex. Scape yellow, black above. Lateral ocelli distant from the 
eye margins. Face subquadrate, wide. Propodeal spiracle elliptical. Funicle joints not much 
longer than wide, a little longer than the pedicel. Postmarginal vein nearly as long as the 
marginal. Abdomen sessile. Club 3-jointed. Propodeum noncarinate. Corrected description. 
Type re-examined. : 
Habitat: Brisbane, Queensland. Reared from galls. 
Type: No. Hy 1192, Queensland Museum, Brisbane, the female on a card. 
8. MEGASTIGMUS TASMANIENSIS Girault. Female. 
‘“ A Tasmanian species, black with a yellow collar, was labelled ‘ Reared from larvae 
of flies attacking Helichrysum scorpioides. R. A. Black.’ They were accidentally destroyed. 
