Batley & Houston: Australian bee genus Trichocolletes 
21 
Descriptions 
Male (holotype).— Head width 4.35 mm, body length 13.1 
mm. Relative dimensions: HW 50, HL 36, UID 30, UFW 32, 
LID 30, DMA 28, HVO 4, WOC 14, MOD 4, OOD 9, IAD 9, 
ASD 3, AOD 8, ML 21, BMW 6, MSL 1.5, SL 11, SW 3, FL c. 
54. —Eyes not hairy; face wide, inner orbits subparallel; length 
malar area c. 0.25x basal mandibular width; flagellum longer 
than head width; distal flagellomere expanded, truncate with 
apical concavity (Fig. 14); middle flagellomeres crenulate, 
1.7x as long as wide. Legs slender; hind tarsus as long as hind 
tibia; hind basitarsus 4.3x as long as wide; posterior carina 
of basitibial area almost reaching apex; malus of fore tibial 
calcar truncate and deflexed forming margin of velum. Apex 
of gonoforceps transversely rather than obliquely truncate 
(Fig. 33); S7 with large rectangular opening to cavity in the 
rectangular lateral lobes (Fig. 59).— Labrum, mandible, scape, 
tarsi, hind tibia, apices fore and mid tibiae orange-brown; 
flagellum and remainder of legs dark brown. Tl-5 with broad 
white bands narrowly ferruginous across anterior margin; T7 
red-brown. —Scutum dull with strong pit-reticulation. —Face 
with dense long, plumose, bright orange hair. Scutum with 
close to dense, long, plumose, orange hair; fore basitarsus 
with weak, pale gold plume; anterior margin of hind tibia with 
weak row of finely-branched white hair. 
Female (WAM 18457).— Head width 4.50 mm, body length 
14.0 mm. Relative dimensions: HW 50, HL 37, UID 30, UFW 
32, LID 31, DMA 28, HVO 3, WOC 13, MOD 3, OOD 8, 
IAD 7, ASD 3, AOD 9, ML 21, BMW 6, MSL 1.0, SL 14, SW 
3, FL c. 35.—Robust; eyes not hairy; face almost quadrate, 
inner orbits parallel; length malar space c. 0.15x basal 
mandibular width; clypeus transversely convex; supraclypeal 
area prominent; labrum long (length 0.75x width), somewhat 
tectiform but not carinate (Fig. 15); middle flagellomeres 1.1 x 
as long as wide; apical flagellomere obliquely truncate; inner 
hind tibial spur with c. 11 strong teeth; fore tibial calcar with 
c. 4 fine teeth; tarsal claws with large, sharp inner ramus; 
pygidial plate broad, coarsely coriarius with low, broad medial 
elevation.— Labrum, mandible, tarsi and tibiae orange-brown; 
outer faces of fore and hind tibiae and basitarsi with dark 
brown suffusions; lower margin of clypeus dark brown. Tl-4 
with broad, white bands narrowly ferruginous across anterior 
margins; pygidial plate dull red basally, darker apically; wings 
darkened.— Clypeus pit-reticulate with dull sheen, closely 
punctate except along midline.— Face with long, plumose 
hair, pale ventrally becoming orange-brown towards ocelli, 
sparse on clypeus and supraclypeal area, dense in paraocular 
areas, apicolateral comers of clypeus and on frons. Scutum 
with close, short, plumose, dark-tipped orange-brown hair; 
prepygidial fimbria orange-brown. 
Remarks. Smith (1853) incorrectly associated male and 
female specimens from different species in his original 
description of Anthoglossa plumata, as Michener (1965) 
implied. Mr David Notton (BMNH) kindly examined, 
described and photographed the male specimen described 
as A. plumata by Smith and confirmed that it matched the 
description given above. Accordingly, the female specimen 
BMNH Hym.l7.a.394 is here formally designated as the 
lectotype of Anthoglossa plumata. 
Trichocolletes gelasinus is referred to as F251/M226 
(part) in Houston (2000). 
Etymology. The specific name, used as a noun in apposition, 
is from the Latin word for dimple and refers to the apex of 
the male flagellum. 
Distribution. Coastal southwestern Australia (ESP, GS, 
MAL, SWA) (Fig. 96). 
Trichocolletes grandis n.sp. 
Figs 11,60, 97 
Type. Holotype S, 50 km SE Broken Hill, New South 
Wales (32.1831°S 141.9067°E), 8 Sep. 2007, M. Batley, ex 
Swainsona viridis, in AM K.278552. 
Specimens examined. The holotype and the following. New South Wales: 
5 $, same data as holotype, AM (K.344718-22); 5 ^, 50 km E Broken Hill 
(31.8875°S 141.9592°E), 7 Sep. 2007, M. Batley, ex Swainsona viridis, 
AM (K.344714-17,28); 5$, 18 km S Ivanhoe (33.0036°S 144.4433°E), 25 
Sep. 2010, M. Batley, AM (K.344723-27); 2$, Kinchega NP (32.4272°S 
142.3497°E), 29 Sep. 2003, M. Batley, ex Swainsona purpurea, AM 
(K.344712-13). South Australia: 2$, 4$, 42 km E Coober Pedy on 
Oodnadatta Rd, late July 1991, B. Greenwood, ANIC. 
Diagnosis 
Length c. 13 mm; eyes hairy; metasomal bands silver; gena 
wide; vertex elevated; colour of metasoma variable. Labrum 
usually black in both sexes, but see comments on variation. 
Male gena with dense white hair. 
Variation 
Specimens collected at Coober Pedy were strikingly different 
in colour from those collected elsewhere. Males differed 
primarily in the colour of the pubescence, but females 
exhibited altered integumental colour. The metasoma of 
females was mostly red, legs brown and labrum amber, 
instead of black. Coober Pedy females retained weak 
metasomal hair bands but the integumental colour bands on 
the terga were frequently indistinct. One specimen exhibited 
intermediate colouring, with large areas of dark brown on 
T1,2, integumental metasomal colour bands and darker legs. 
Both sexes from Coober Pedy had strongly orange-brown 
pubescence, but this may have been the result of mineral 
staining. In all other respects, including the elevated vertex, 
dense genal hair and intermediate length setae on the eyes, 
the specimens were identical to those from other locations. 
The scapes of one male specimen were black, but all other 
males had orange scapes. 
Descriptions 
Male (holotype).— Head width 4.05 mm, body length 12.6 
mm. Relative dimensions: HW 50, HL 41, UID 32, UFW 33, 
LID 32, DMA 33, HVO 4, WOC 14, MOD 3, OOD 9, IAD 9, 
ASD 3, AOD 8, ML 18, BMW 8, MSL 1.0, SL 14, SW 4, FL 
c. 44.— Eyes hairy, but length of setae about half that in other 
hairy-eyed species, face broad, inner orbits approximately 
parallel, malar area short (length c. O.lx basal mandibular 
width), clypeus protuberant, vertex elevated, gena 0.7x as 
wide as eye viewed laterally, flagellum shorter than head 
width, middle flagellomeres c. 1.4x as long as wide. Legs 
slender, hind tarsus 1. lx as long as hind tibia, hind basitarsus 
3.9x 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 slightly rounded, rectangular lateral 
lobes and large basal teeth (Fig. 60).— Scape, small area of 
mandible medially, tarsi, hind tibia, small areas on fore and 
