14 
Records of the Australian Museum (2012) Vol. 64 
Remarks. Sexes associated by morphological similarity 
and mitochondrial cytochrome oxidase subunit I DNA 
sequence (results not shown). This species is referred to 
as M242 in Houston (2000). Females resemble those of T. 
leucogenys n.sp. and T. dundasensis n.sp. from which they 
may be distinguished by the relatively narrow upper margin 
of clypeus. 
Etymology. The specific name is from the Latin adjective 
meaning very hairy referring to the femora of the male. 
Distribution. Avon wheatbelt area of Western Australia (AW, 
GS, JF) (Fig. 87). 
Trichocolletes centralis n.sp. 
Figs 52, 88 
Type. Holotype c5, 30kmW Sandstone [27.59S, 119.18E], 
Western Australia, 7 Sep. 1981, T. F. Houston, on flowers 
of Daviesia grahami, in WAM 13563. Co-ordinates on the 
label refer to the location of Sandstone at 27°59'S 119° 18'E. 
Specimens examined. The holotype and the following. New South 
Wales: 3(5, Dolo Creek (31.6933°S 142.8697°E), 7 Sep. 2007, M. Batley, 
AM (K.334669-71). Queensland: 6) 34 km E Cunnamulla (28.0456°S 
146.0658°E), 24 Aug. 2007, M. Batley, AM (K.334668); 7(5, 2$, 70 mi NW 
Quilpie, 17 Aug. 1968, J. C. & T. F. Houston, on Crotolarici eremaea, SAM 
(32-024508,10,11) & UQIC; 2(5, 4$, 8 mi NE Windorah, 16 Aug. 1968, J. 
C. & T. F. Houston, on Kennedia prorepens, UQIC & SAM (32-024509). 
South Australia: S, ?, 70 mi N Marree, 13 Aug. 1969, E. M. Exley, UQIC; 
3(5) 9^, Simpson Desert, 15-18 Sep. 1971, T. F. Houston, on Swainsona, 
Crotalaria, Goodenia & Helipterum, SAM (32-024645-56). Western 
Australia: 3(5) 2$, 24-25 km ENE Beyondie HS, 17-20 Aug. 1984, T. F. 
Houston & B. P. Hanich, on flowers of Thryptomene maisonneuvei & Scaevola 
spinescens, WAM (1354CM4); ^, Beyondie Little Sandy Desert (24.5833°S 
120.2833°E), 28 Aug. 1997, D. Knowles & A. Start, visiting Swainsona, 
WAM (21021); S, , Cardabia, K. T. Richards, WAA (45286-87); $, 36 km 
N Charlies Knob, 1 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers 
of Swainsona, WAM (13558); (5) 28 km N Charlies Knob, 6 Aug. 1983, T. 
F. Houston & R. P. McMillan, on flowers of Dicrastylis exsuccosa, WAM 
(13557); 6(5) 37 km SW Glenayle HS, 6-9 Aug. 1983, T. F. Houston & R. 
P. McMillan, on flowers of Swainsona, WAM (13547-52); 3(5) Karijini 
National Park (22.5250°S 118.7833°E), 20 Aug. 2001, T. F. Houston, on 
flowers of Gompholobium polyzygum, WAM (29092-95); 8(5, 2$, 15 km 
N Kumarina Hotel, 21 Aug. 1984, T. F. Houston & B. P. Hanich, on flowers 
of Thryptomene maisonneuvei & Swainsona, WAM (13530-39); 28 km 
WSW Lenister, 11 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of 
Baeckea stowardii, WAM (13556); (5,33 km WSW Lenister, 11 Aug. 1983, 
T. F. Houston & R. P. McMillan, on flowers of Dicrastylis brunnea, WAM 
(13555); (5, ?, 30 km NW Loma Glen HS, 10 Aug. 1983, T. F. Houston & 
R. P. McMillan, on flowers of Ptilotus obovatus, WAM (13553-54); 2(5,17 
km E Mt Nossiter, 7 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers 
of Dicrastylis exsuccosa, WAM (13559-60); 4(5,30 km W Sandstone,7 Sep. 
1981, T. F. Houston, on flowers of Daviesia grahami, WAM (13563-67); 2)7, 
8 km NE Tamala HS (26.70°S 113.71°E), 21-23 Aug. 1980, C.A. Howard& 
T. F. Houston, on flowers of Mirbelia ramulosa, WAM (13835, 14422); 3(5, 
7$, 16 km SW Tangadee HS, 22 Aug. 1984, T. F. Houston & B. P. Hanich, on 
flowers of Swainsona, WAM (13520-29); 2(5, $, 25 km SW Tangadee HS, 
22 Aug. 1984, T. F. Houston & B. P. Hanich, on flowers of Swainsona, WAM 
(13523,45,46); (5,7 km N Wongawol HS, 29-30 Jul. 1983, T. F. Houston & 
R. P. McMillan, WAM (13561); Woomera, 15 Sep. 1968, H. Mincham, 
on flowering legume shrub, SAM (32-024507). 
Diagnosis 
Length 11-13 mm; eyes not hairy; malar space short; 
metasoma sericeous with broad bands. Male metasoma 
slender; legs slender; tibiae, tarsi and antenna ventrally 
orange-brown. Female pubescence of scutum short, dense; 
only hind tarsal claw with small inner ramus. 
Variation 
The colour of the metasomal bands varies from silver to 
moderately bright gold and that of the scutal hair ranges 
from orange-brown to almost white. No correlation was 
found between colour and geographic location. The apical 
half of the flagellum is darkened ventrally in some males. 
Descriptions 
Male (holotype).— Head width 3.80 mm, body length 11.8 
mm. Relative dimensions: HW 50, HL 39, UID 30, UFW 32, 
LID 31, DMA 30, HVO 5, WOC 14, MOD 4, OOD 8, IAD 
9, ASD 3, AOD 8, ML 20, BMW 7, MSL 1.0, SL 12, SW 3, 
FL c. 53.— Eyes not hairy; face narrow; malar space short 
(length c. O.lx basal mandibular width); length flagellomeres 
c. 1.5x width. Legs slender; hind tarsus 1.2x as long as hind 
tibia; hind basitarsus 3.5x as long as wide; posterior carina of 
basitibial area reaches apex. Genital capsule similar to that 
for T. orientalis n.sp. (Fig. 37); S7 with long, thin posterior 
projections and ligulate processes, rectangular lateral lobes with 
sinuate posterior margin (Fig. 52). —Labrum cream; ventral rim 
clypeus amber; scape, pedicel, flagellum ventrally, tarsi, tibiae 
and femora orange-brown, with medial brown areas on fore 
and mid femora; flagellum dorsally, coxae, trochanters dark 
brown. Tl-5 with broad, pale gold bands (see variation); T7 
and large part of S6 orange-brown. —Scutum with dull sheen, 
weak pit-reticulation and dense, small punctures.— Face with 
dense orange hair, erect on clypeus. Scutum with close, long, 
plumose, orange hair; fore basitarsus with tapered golden 
plume; hind femur with fringe of long hair on anterior margin; 
metasoma sericeus with semi-adpressed simple hair. 
Female (WAM13523).— Head width 4.00 mm, body length 
12.6 mm. Relative dimensions: HW 50, HL 39, UID 30, UFW 
32, LID 32, DMA 30, HVO 4, WOC 13, MOD 3, OOD 8, IAD 
7, ASD 4, AOD 9, ML 20, BMW 6, MSL 0.5, SL 15, SW 3, 
FL c. 32. —Eyes not hairy; face quadrate; malar space short 
(length c. 0. lx basal mandibular width); clypeus transversely 
convex; middle flagellomeres as long as wide; inner hind 
tibial spur with c. 7 long, well-spaced teeth; fore tibial calcar 
with c. 5-6 strong teeth; hind tarsal claw only with small 
inner ramus; pygidial plate apically entire with broad medial 
elevation.— Labrum, mandibles medially, apical rim clypeus 
amber; anterior margins of fore and mid tibia orange-brown; 
remainder of legs dark brown. Tl-4 with broad pale gold 
bands, narrowly ferruginous across anterior margin. —Clypeus 
reticulate basally, with large punctures, becoming polished and 
sparsely punctate apically. Scutal sculpture as for male.— Face 
with long white, plumose hair, becoming dark brown near 
ocelli, dense in apicolateral comers of clypeus, paraocular 
areas and on frons, sparse on clypeus and supraclypeal area. 
Scutum densely covered with short, finely-branched, pale 
brown or orange-brown hair; tibial scopa white or pale orange 
except near basitibial area; prepygidial fimbria gold. 
Remarks. This species is referred to as F246 (part), M219, 
F273 and M228 in Houston (2000). 
Etymology. The specific name, used as a Latin adjective, 
refers to the regions where the species has been found. 
Distribution. Central, arid areas of Australia (BHC, CHC, 
GAS, GAW, GD, GS, LSD, ML, MUR, PIL, SSD, STP) 
(Fig. 88). 
