28 
Records of the Australian Museum (2012) Vol. 64 
Fig. 19. Trichocolletes marginatus left mandible of male with 
horizontal projection arrowed. 
(18565-67); 53, Pemberton, 24 Nov. 1958, W. Napier, WAA (45292-96); 
West Midland, 12Nov. 1950, MV (16514); 2$, West Midland (31,8833°S 
115.9833°E), 26 Oct. 1952,MV (16526,30); $, 14kmWSWWitchcliffe, 14 
Nov. 1986, T. F. Houston, on flowers of Jacksonia, WAM (13902); 23, 2$, 
Yallingup, WAM (13755-58); 3, Yallingup, 16 Nov. 1968, N. McFarland, 
SAM (32-024666). 
Diagnosis 
Length 15-16 mm; eyes not hairy; metasomal bands narrow, 
gold or silver; upper margin of mandible with horizontal 
projection, more pronounced in male. Male mid and hind 
tibiae incrassate; flagellum longer than head width; S2 with 
large, untidy hair tuft. 
Descriptions 
Male (WAM 21957).— Head width 4.70 mm, body length 
16.0 mm. Relative dimensions: HW 50, HL 37, UID 28, 
UFW 29, LID 32, DMA 30, HVO 6, WOC 13, MOD 4, 
OOD 8, IAD 8, ASD 4, AOD 8, ML 19, BMW 9, MSL 1, 
SL 13, SW 3, FL c. 56.— Eyes not hairy; head broad; inner 
orbits divergent ventrally; malar space very short; clypeus 
strongly protuberant; basal % mandible with horizontal 
projection from upper margin (Fig. 19); flagellum longer 
than head width, middle flagellomeres c. 1.6x as long as 
wide. Legs stout; mid tibia strongly swollen; hind tibia 
less so, concave on inner surface; length hind tarsus 
subequal to length hind tibia; hind basitarsus 3.7x as long 
as wide; basitibial area acarinate. Genital capsule (Fig. 
36) somewhat like that for T. orientalis n.sp., but with 
larger projection on inner surface of gonoforceps; S7 with 
rectangular lateral lobes, very long posterior projections 
and small basal teeth (Fig. 66).— Labrum cream; ventral 
margin of clypeus yellow-brown; mandible medially amber; 
scape, tibiae, tarsi, anterior face fore femur, distal ends of 
mid and hind femora and flagellomeres FI-4 ventrally, 
orange-brown; remainder of flagellum dark brown. Tl-5 
with gold or silver bands, narrowly stained brown across 
anterior margin; wings darkened.— Face covered with 
long, plumose, orange hair, close and stiffly erect on the 
clypeus, dense elsewhere. Scutum closely covered with 
long, erect, finely-branched orange hair; fore basitarsus 
with tapered plume of long, orange hair; fore trochanter and 
femur with thin cover of long orange hair; anterior margin 
hind basitarsus and distal half hind tibia with sparse, long, 
orange hair. 
Female (AM K.316700).— Head width 4.90 mm, body 
length 15.3 mm. Relative dimensions: HW 50, HL 36, UID 
26, UFW 31, LID 32, DMA 30, HVO 5, WOC 11, MOD 3, 
OOD 7, IAD 8, ASD 3, AOD 9, ML 19, BMW 8, MSL 0.5, 
SL 15, SW 3, FL c. 34. —Eyes not hairy; head broad; inner 
orbits divergent ventrally; malar space very short; mandibular 
projection less prominent than for male; clypeus transversely 
convex; inner hind tibial spur with c. 9 long teeth, outer 
spur pectinate; tarsal claws simple.— Ventral margin 
of clypeus medially, distitarsi orange-brown; legs dark 
brown. Tl-4 with narrow gold or silver bands.— Clypeus 
weakly reticulate with large punctures, dense basally, open 
apically; supraclypeal area with punctures coalescing into 
irregular vertical channels; scutum and metasoma with 
dull sheen. —Face with long, white, plumose hair, dense in 
paraocular areas and on frons, open on supraclypeal area and 
dorsolateral margins of clypeus. Scutum densely covered 
with short, finely-branched, dark-tipped pale brown hair; 
hind tibial scopa dark brown with paler hair on anterior 
margin; prepygidial fimbria dark brown to black. 
Remarks. In his original description, Smith reported that his 
specimens came from Queensland, leading Cockerell (1913a, 
1914) to apply the name T. marginatus to the species here 
named T. serotinus n.sp.. As pointed out by Michener (1965), 
this has led to the misidentification of many specimens of T. 
serotinus n.sp. in Australian collections. 
This species is referred to as F259/M231 in Houston 
( 2000 ). 
Distribution. Coastal southwestern Australia (JF, SWA, 
WAR) (Fig. 104). 
Trichocolletes maximus (Cockerell) 
Figs 10, 20, 24, 67, 105 
Paracolletes maximus Cockerell, 1929b, p. 9 (female). 
Trichocolletes (Trichocolletes) maximus .— Michener, 1965, 
p. 80. 
Specimens examined. New South Wales: 6$, 7 km W Walgett, 15 Sep. 
1988, N. W. Rodd, ex Swainsona procumbens, AM (K.316701-06); 3^, 
10 km N Mungindi (28.9108°S 148.9461°E), 25 Aug. 2007, M. Batley, ex 
Swainsona procumbens, AM (K.316524-25, 31); 3 3, 2$, 32 km NNW 
Mungindi (28.7092°S 148.8825°E), 25 Aug. 2007, M. Batley, ex Swainsona 
procumbens, AM (K.316526-30); $,5kmE Condobolin (33.0770°S 
147.1975°E), 26 Sep. 2010, M. Batley, ex Swainsona procumbens, AM 
(K.316532). Victoria: 2$, Ellmore-Mitiano Road(36.2920°S 144.3130°E), 
2009, A. H. Murphy, ex Swainsona procumbens, AM (K.316708-09); 3, 
Terrick Terrick NP, (36.0920°S 144.2620°E), 24 Aug. 2009, A. H. Murphy, 
ex Swainsona procumbens, AM (K.316707). 
Diagnosis 
Length 13-14 mm; eyes hairy; scutal hair dense, ferruginous; 
metasomal bands silver-white; labrum black or dark 
brown; scape black in both sexes. Female clypeus weakly 
protuberant. 
