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Records of the Australian Museum (2012) Vol. 64 
sericeus. Male scape black; mid basitarsus broadened 
distally. Female with large inner ramus on tarsal claws. 
Descriptions 
Male (WAM 13642).— Head width 3.7 mm, body length 10.1 
mm. Relative dimensions: HW 50, HL 36, UID 33, UFW 31, 
LID 28, DMA 26, HVO 4, WOC 13, MOD 4, OOD 9, ML 
15, BMW 6.5, MSL 1, SL 13, SW 3, FL c. 50 .—Eyes not 
hairy; inner orbits convergent ventrally; malar space short 
(length c. 0.15x basal mandibular width); length flagellum 
equal to head width; middle flagellomeres c. 1.5x as long 
as wide. Legs slender; hind tarsus 1.3x as long as tibia; 
length basitarsus 6.Ox as long as wide; basitibial area with 
distinct posterior edge almost reaching apex. Gonoforceps 
with hair of moderate length (Fig. 29); S7 with broad lateral 
lobes fused to ligulate processes subsuming basal teeth, 
posterior projections absent (Fig. 46).— Mandible medially 
amber; labrum, tibiae, tarsi and distal ends of femora 
orange-brown, fore and mid tibiae with dark infuscations; 
flagellum ventrally mid-brown; ventral rim clypeus, 
flagellum dorsally dark brown. Tl-5 with broad silver or 
pale gold bands, ferruginous across anterior margins; T7 
red-brown.— Clypeus reticulate with dense, large punctures 
except apically impunctate and polished. Scutum dull with 
strong pit-reticulation and indistinct, open punctures.— Face 
with long, plumose, white hair, gena with white hair forming 
a beard; scutum with open, long, finely-branched, white 
hair; fore coxa, trochanter and tibia with long white hair; 
remainder of legs with sparse hair only. 
Female (WAM 13831).— Head width 4.05 mm, body length 
11.7 mm. Relative dimensions: HW 50, HL 35, UID 32, 
UFW 33, LID 30, DMA 28, HVO 3, WOC 15, MOD 4, 
OOD 8, IAD 6.5, ASD 3, AOD 9, ML 18, BMW 5.5, MSL 
1, SL 15, SW 2.5, FL c. 28.— Eyes not hairy; face almost 
quadrate, inner orbits slightly convergent ventrally; malar 
space short (length c. 0.15x basal mandibular width); 
clypeus smoothly convex; middle flagellomeres as long as 
wide; i nn er hind tibial spur with c. 10 long, closely-spaced 
teeth; pygidial plate minutely emarginate, medial elevation 
broad.— Labrum , mandible medially, ventral margin of 
clypeus, anterior faces fore tibia and tarsus orange-brown; 
remainder of legs brown. Tl-4 with broad, pale gold or 
silver bands, broadly ferruginous across anterior margin.— 
Clypeus reticulate with large, dense punctures except 
ventral margin impunctate and polished; supraclypeal area 
with large, close to dense punctures; frontal carina ending 
in sharp point on supraclypeal area. Sculpture of scutum 
as for male.— Face with long, plumose hair; dense, white 
on apicolateral corners of clypeus and in paraocular areas; 
sparse on supraclypeal area and remainder of clypeus; 
dense, pale orange-brown on frons and vertex. Scutum with 
open, long, orange-brown hair; hind tibial scopal hair white 
except rich brown near basitibial area. T2-5 sericeous with 
simple, semi-adpressed, amber hair; prepygidial fimbria 
golden-brown. 
Remarks. The male has not previously been described. Only 
the holotype is recorded from as far south as Perth. Given the 
age of the specimen, the location may be approximate. This 
species is referred to as F246 and M225 in Houston (2000). 
Distribution. Western Australia east of Geraldton (GS, 
GVD, MUR, SWA?) (Fig. 82). 
Trichocolletes avialis n.sp. 
Figs 47, 83 
Type. Holotype S, 20m E Mt Madley, Western Australia, 7 
Sep. 1971, in WAM 13797 
Specimens examined. The holotype and the following. Northern 
Territory: 41 Mile Bore, 10 Jul. 1989, N. W. Rodd, AM (K.316639). 
Diagnosis 
Male (female unknown) eyes not hairy; metasomal bands 
silver; flagellum largely orange; mid basitarsus bowed; fore 
trochanter with spine. 
Description 
Male (holotype).— Head width 3.65 mm, body length 12.6 
mm. Relative dimensions: HW 50, HL 36, UID 31, UFW 
32, LID 32, DMA 33, HVO 4, WOC 15, MOD 4, OOD 
8, IAD 9, ASD 3, AOD 9, ML 20, BMW 7, MSL 0.3, SL 
12, SW 3, FL c. 43.— Eyes not hairy; face narrow; inner 
orbits divergent ventrally; malar space short (length c. O.lx 
basal mandibular width); middle flagellomeres c. 1.3x as 
long as wide. Legs slender; fore trochanter with ventrally- 
directed spine; proximal end of mid basitarsus strongly 
bowed longitudinally; hind tarsus as long as hind tibia; hind 
basitarsus 4.lx as long as wide; hind basitibial area with 
pigmented posterior carina reaching apex. Gonoforceps 
with long, dense hair, otherwise genital capsule like that 
for T orientalis n.sp. (Fig. 37); S7 (K.316639) with broad, 
rectangular lateral lobes, lateral edges emarginate, posterior 
projections, basal teeth and ligulate processes long and thin 
(Fig. 47).— Labrum, ventral 25% clypeus cream; mandible 
basally pale amber; scape, femora, tibiae, fore tarsus, distal 
half trochanters, most of flagellum orange-brown; flagello¬ 
meres F3-10 dorsally, mid and hind tarsi dark brown. Tl-5 
with moderately broad silver bands; apex of T7 orange- 
brown.— Scutum shining, closely punctate.— Face with 
dense, finely-branched, bright orange hair, stiffly erect on 
clypeus; gena with golden hair forming a beard. Scutum with 
close, long, plumose, orange hair; fore basitarsus with plume 
of pale gold hair; hind femur openly covered with moderate 
length, apically-directed, pale orange hair. 
Etymology. The specific name is from the Latin adjective 
meaning out-of-way or off road, referring to the remote 
collection sites for the two known specimens. 
Distribution. Arid areas in northern half of Australia (DMR, 
LSD) (Fig. 83). 
Trichocolletes brachytomus n.sp. 
Figs 21, 25, 48, 84 
Type. Holotype S, Orroroo, South Australia, 24 Dec. 1938, 
inANIC. 
Specimens examined. The holotype and the following. New South Wales: 
cL Kinchega NP (32.458FS 142.3525°E), 8 Sep. 2007, M. Batley, AM 
(K.278549). South Australia: % Flinders Rg, 1 Sep. 1948, Hall, SAM 
(32-024542); $, Lake Eyre N Sulphur Pen., 1 Aug. 1967, G. Gross, SAM 
(32-024543); % nr Lake Harry NEMaree, 24 Sep. 1972, H. Mincham, SAM 
(32-024532); 2$, Orroroo, 2 Oct. 1937, J.T. Gray, AM (K.316640^11); ?, 
same data, SAM (32-024540); 2>S, 3?, Orroroo, 23 Sep. 1938, J.T. Gray, 
