Batley & Houston: Australian bee genus Trichocolletes 
29 
Descriptions 
Male (AM K.316525), not previously described.— Head 
width 4.65 mm, body length 12.6 mm. Relative dimensions: 
HW 50, HL 35, UID 33, UFW 34, LID 31, DMA 29, HVO 
7, WOC 13, MOD 3, OOD 10, IAD 9, ASD 3, AOD 9, 
ML 20, BMW 7, MSL 0.8, SL 16, SW 3, FL c. 46.— Eyes 
hairy; inner orbits ventrally convergent; length malar space 
c. 0.15x basal mandibular width; gena broad, almost as 
wide as eye viewed laterally; middle flagellomeres c. 1.5x 
as long as wide; hind tibia with angular, densely setose 
ridge from basitibial area to distal margin; hind tarsus as 
long as hind tibia; hind basitarsus 3.8x as long as wide; 
hind basitibial area with posterior carina to apex (Fig. 24). 
Genital capsule similar to that for T. orientalis n.sp. (Fig. 
37); S7 with rectangular lateral lobes and short posterior 
projections (Fig. 67). Distitarsi and flagellomeres F2-6 
ventrally, orange-brown; mandible medially, dark brown. 
Tl-5 with silver bands.— Vertex and scutum noticeably dull 
with strong pit-reticulation. —Face densely covered with 
long, erect, plumose, orange hair; gena closely covered 
with long, white hair. Scutum closely to densely covered 
with long, plumose, ferruginous hair; fore basitarsus and 
all trochanters with long plumes of white hair; anterior 
margin of hind tibia with fringe of close, long, white hair. 
Tl,2 openly covered with long, erect, white hair, shorter on 
T2; T3-6 openly covered with short, semi-adpressed hair 
mostly matching underlying integument, but with some 
pale hair extending onto dark areas anterior to silver bands. 
Female (AM K.316527).— Head width 4.90 mm, body length 
13.8 mm. Relative dimensions: HW 50, HL 37, UID 32, UFW 
34, LID 33, DMA 34, HVO 4, WOC 14, MOD 3, OOD 10, 
IAD 8, ASD 3, AOD 10, ML 20, BMW 9, MSL 1.5, SL 16, 
SW 3, FL c. 29. —Face broad; inner orbits subparallel; malar 
space short (length c. 0.2x basal mandibular width); gena 
about 2/3 as wide as eye, viewed laterally; vertex elevated; 
clypeus transversely convex laterally, but strongly flattened 
medially; middle flagellomeres c. 1.3x as long as wide; inner 
hind tibial spur with c. 6 strong teeth; basitibial area not 
elevated above surroundings (Fig. 20); tarsal claws simple; 
pygidial plate entire, without medial elevation, strongly 
sculptured.— Labrum, mandible medially dark brown; 
distitarsi orange-brown. Tl-4 with narrow silver-white 
bands.— Clypeus and paraocular areas reticulate, closely 
punctate; supraclypeal punctures contiguous, merging to 
form irregular grooves.— Clypeus sparsely covered with 
long, finely-branched, white hair; paraocular areas and 
frons densely covered with long, plumose hair, white below 
antennal sockets, becoming pale orange above.— Scutum 
densely covered with short, erect, finely-plumose, bright 
ferruginous hair; hind tibial scopa white except dark brown 
near basitibial area; pubescence of metasomal terga as for 
male; prepygidial fimbria off-white or pale brown. 
Remarks. In Cockerell’s original description, it is clear from 
references to the pygidial plate and hind tibial scopa that he 
was describing a female, but erroneously reported that it was 
male. Dr Ascher of the American Museum of Natural History 
provided photographs of the holotype and has confirmed 
that the holotype is female and has the diagnostic features 
described above. 
Distribution. Inland areas from southern Queensland to 
northern Victoria (DRP, NSS, RIV) (Fig. 105). 
Trichocolletes micans n.sp. 
Figs 68, 106 
Type. Holotype S, Kinchega NP, New South Wales 
(32.4581°S 142.3525°E), 8 Sep. 2007, M. Batley, ex 
Swainsona purpurea , in AM K.344736. 
Specimens examined. The holotype and the following. New South Wales: 
same data as holotype, AM (K.344737-42); 4(j, Black Mountain, 
Gunnedah (31.0280°S 150.1346°E), ANIC; 2$, 9$, 3 mi E Legume, 25 
Sep. 1964, T. F. Houston, SAM (32-024512-22); 1$, 7$, 6 km S Mungindi, 
15 Sep. 1988, N. W. Rodd, AM (K.344441-53, K.316710). Queensland: 
9, 30 km N Mungindi (28.7586°S 148.8950°E), 14 Sep. 2005, M. Batley, 
ex Swainsona sp., AM (K.344735). South Australia: 2$, 50 km S Leigh 
Creek, 18 Sep. 2010, M. Edwards, SAM. 
Diagnosis 
Length c. 11 mm; eyes hairy; scape black in both sexes; legs 
black; metasoma sericeous with moderately wide, silver- 
white bands, ferruginous across anterior margins; known 
only from eastern Australia. 
Descriptions 
Male.— Head width 3.75 mm, body length 11.0 mm. 
Relative dimensions: HW 50, HL 37, UID 31, UFW 32, 
LID 30, DMA 30, HVO 4, WOC 15, MOD 4, OOD 8, IAD 
9, ASD 3, AOD 9, ML 20, BMW 8, MSL 2.0, SL 14, SW 
3, FL c. 48.— Eyes hairy; face almost quadrate, inner orbits 
parallel; length of malar area c. 0.25x basal mandibular 
width; flagellum slightly shorter than head width, middle 
flagellomeres c. 1.6x as long as wide. Legs slender; length 
hind tarsus equal to length hind tibia; hind basitarsus 
4.3x as long as wide; basitibial area with strong posterior 
carina to apex and sharp edge on anterior margin. Genital 
capsule similar to that for T. orientalis n.sp. (Fig. 37); S7 
with narrow rectangular lateral lobes and strong posterior 
projections (Fig. 68). Distitarsi and mandible medially 
orange-brown; labrum dark brown. Tl-5 with broad, 
silver-white bands, ferruginous across anterior third.— 
Clypeus, other than apical margin, densely punctate 
with interspaces except basally, where a few punctures 
coalesce; scutum with dull sheen, moderately strong pit- 
reticulation and close small punctures.— Face with dense, 
long, finely-branched, white hair. Scutum closely covered 
with long, branched, white or pale brown hair; anterior 
margin of hind tibia with close fringe of long, white hair; 
metasomal terga with short, semi-adpressed, translucent 
hair, conspicuous only when illuminated obliquely. 
Female.— Head width 3.90 mm, body length 11.6 mm. 
Relative dimensions: HW 50, HL 36, UID 31, UFW 33, 
LID 32, DMA 33, HVO 4, WOC 15, MOD 4, OOD 7, 
IAD 9, ASD 3, AOD 10, ML 20, BMW 7, MSL 1.5, SL 
15, SW 3, FL c. 31.— Face wider than long, inner orbits 
diverging ventrally; length malar space c. 0.2x basal 
mandibular width; clypeus gently convex transversely; 
middle flagellomeres c. l.lx as long as wide; inner hind 
tibial spur with c. 8 teeth; basitibial area with anterior and 
posterior carinae and apex elevated above surroundings; 
only hind tarsal claw with small inner ramus; pygidial 
plate with small emargination and slight medial elevation. 
Distitarsi orange-brown; remainder of legs and mandible 
dark brown; labrum dark brown or black, rarely suffused 
with orange-brown. Tl-4 with broad, silver-white bands 
