270 
G.R. Brown 
Other material 
Australia: Western Australia: 16,7 mi. (11.3 km) 
W of Albany, 4 Oct. 1951, I.F.B. Common (ANIC); 
16, Arrowsmith Crossing, 1 Sept. 1990, B. and B. 
Wells (BCRI); 26, Jewel Cave, 8 km NW of Augus¬ 
ta, 20 Nov. 1986, G.R. Brown (BCRI); 12, Beverley, 
E.F. du Boulay (SAM); Id, 14 mi. (22.5 km) W of 
Borden, 10 Oct. 1951, I.F.B. Common (ANIC); Id, 
12, Deep Dene, Karridale, 4 Nov. 1962, 21 Feb. 
1964, L.M. O'Halloran (ANIC); 1 d, 12 km SE of 
Dongara, 29.20S, 115.01E, 11 Sept. 1981, D.C.F. 
Rentz (ANIC); Id, 12, 10 km S of Eneabba, 
heathland, in cop, 25 Sept. 1986, J.M. Aldenhoven 
(BCRI); Id, Geraldton, 1917, Clark (ANIC); Id, 
King George Sound (AM); Id, Kwinana, 19 Oct. 
1987, R. Peakall (BCRI); Id, Mt Ragged, 1 Nov. 
1977, D.H. Colless (ANIC); Id, Nomalup, 3 Dec. 
1985, J. Alcock (BCRI); Id, Northcliffe, L. Glauert 
(WAM); Id, 12, Walpole-Nomalup NP., 3 Dec. 
1985, J. Alcock, (NTM); Id, 12, Crystal Springs, 7 
mi. (11.3 km) E of Walpole, 14 Dec. 1970, G.A. 
Holloway & H. Hughes (AM); Id, 12, Yallingup, 
16 Nov. 1968, N. McFarland (SAM); 2d, Yallingup 
Cave, pollinating Caladenia aff. huegelii, Oct. 1990, 
R. Bates (BCRI); Id, Yallingup, on eucalypt, 22 
Dec. 1979, R.M. Bohart (UCD). 
Diagnosis 
Stout and usually large wasps with areas of 
orange on at least the head, prothorax, legs and 
metasoma. Males distinguished from all other 
species by the presence of this colouration on the 
posterior margin of the pronotum and legs, and by 
almost impunctate tergites which are black basally. 
Females are distinguished from all other species by 
the presence of yellowish orange on the head and 
mesosoma. 
Description Male 
Measurements 
Body: 22-35 mm; fore wing: 16-27 mm; hind 
wing: 12-20 mm. 
Colour 
Black; mandibles (except apex), clypeus, antennal 
prominence above antennal insertions, scape 
ventrally and apically, orbits of eye (discontinuous 
dorsally), anterior margin of pronotum laterally, 
posterior margin of pronotum broadly, tegulae, 
legs (except coxae and fore trochanters), margins 
of mesopleural lamellae, tergites and sternites 
(except basally) orange. Wings suffused with 
orange; veins orange, brown and black. Setae 
yellow on head and dorsum of pronotum, 
otherwise white. Tergites and sternites (except 
basal and apical segments) semitransparent 
apically so that black colouration of following 
segments visible. 
Structural features 
Clypeus truncate, closely punctate with obscure 
curved carinae; frons, vertex and gena finely and 
rugosely punctate; antennal prominence broadly 
U-shaped, raised and carinate above antennal 
insertions; pronotum finely and rugosely punctate, 
anterior margin raised and slightly produced 
laterally; mesoscutum finely and rugosely punctate 
laterally, coarsely and rugosely punctate medially; 
mesoscutellum coarsely and rugosely punctate, 
obscurely sagittally carinate; metanotum finely and 
closely punctate; propodeum finely and closely 
punctate, oblique without dorsal surface, densely 
covered with long curly setae; mesopleura, 
prostemum and coxae finely and closely punctate; 
fore coxae almost flat; metasoma conical, polished; 
tergites almost impunctate; T1 vertically truncate 
anteriorly, not tuberculate above anterior 
truncation; sternites closely punctate; SI broadly 
medially raised; hypopygium strongly transversely 
carinate dorsally, broadly rounded apically with 
apical spine, basal angles produced into small 
rounded lobes; genitalia as in Figure 4, parameres 
strongly curved, tapered apically. 
Female 
Measurements 
Body: 16-27 mm. 
Colour 
Orange; flagellum, inside occipital Carina, 
anterior surface of pronotum, prosternum, 
mesothorax, metathorax, propodeum, base and 
apex of T1 and T3-5, dorsum of T2, pygidium, SI, 
S5-6 and variably on base and apex of S2-4 dark 
brown to black; mandibles and base of coxae 
brown. Setae white to pale yellow. 
Structural features 
Head subrectangular, wider than long (1.24:1), 
narrowed ventrally, dorsal angles broadly 
rounded; clypeus broadly truncate, sagittally 
carinate, closely punctate; frons coarsely and 
sparsely punctate becoming closely punctate 
ventrally; vertex sparsely punctate; pronotum 
subrectangular, wider than long (1.85:1), slightly 
narrowed posteriorly, appearing impunctate but 
very finely and closely punctate, anterior margin 
with line of coarse punctures; mesoscutellum 
closely punctate; propodeum truncate with short 
dorsal surface, finely and closely punctate overlain 
with coarse punctures dorsally on truncation, 
lateral surface impunctate and polished becoming 
closely punctate dorsally and posteriorly with 
punctures coarser dorsally; tergites sparsely 
punctate; T1 truncate with preapical carina 
strongly defined with punctate line; T2 with 8-9 
almost complete transverse carinae between 
