Batley & Houston: Australian bee genus Trichocolletes 
13 
Figs 3^1. Trichocolletes capillosus n.sp., male: (3) left fore tarsus (arrow indicates setose projection) (4) ventral view of mid and hind 
legs showing long hair on femora (arrowed). 
Trichocolletes capillosus n.sp. 
Figs 3-4,51, 87 
Type. Holotype S, Coomberdale, Western Australia, 9 Jul. 
1976, R. P. McMillan, in WAM 13792. 
Specimens examined. The holotype and the following. Western Australia: 
2<$, same data as holotype, WAM (13793-94); 3$, Bolgart, 12 Nov. 1950, 
ANIC; $, 30 km E Cramphorne (31.7939°S 118.8731°E),20Oct. 2009, M. 
Batley, AM (K.344667); <3,14kmNWNarrogin(32.8761°S 117.0425°E), 
9 Oct. 2009, M. Batley, ex Gastrolobium crassifolium , AM (K.278550); <5\ 
Nabawa, 9 Jul. 1998, S. R. Patterson, WAM (21393); & 11 mi N of New 
Norcia, 18 Aug. 1971, T. F. Houston, on Daviesia & Pultenaea, SAM (32- 
024670); Stathams, WAM (13713); $, Wamenusking, WAM (13700); 
$, 15 kmN Westonia (31.1981°S 118.7586°E), 19 Sep. 2004, M. Batley, 
ex Gastrolobium sp. AM (K.344666). 
Diagnosis 
Eyes hairy; metasomal bands narrow, silver. Male mid and 
hind femora with very long, dense hair (Fig. 4). Female upper 
margin of clypeus narrow. 
Descriptions 
Male (AM K.278550 ).—Head width 3.75 mm, body length 
11.5 mm. Relative dimensions: HW 50, HF 39, UID 30, 
UFW 31, FID 31, WOC 14, MOD 4, OOD 9, IAD 9, ASD 
4, AOD 7, MF 20, BMW 7, MSF 3.0, SF 13, SW 3, FF c. 
53 .—Eyes hairy; face approximately quadrate, inner orbits 
parallel; length malar space c. 0.45x basal mandibular width; 
flagellum longer than head width, middle flagellomeres c. 
1.4x as long as wide. Fegs slender; fore basitarsus noticeably 
short, abruptly thicker at distal end, which bears a tuft of 
setae on inner margin (Fig. 3); hind tarsus as long as hind 
tibia; hind basitarsus 4.7x as long as wide; posterior carina 
of basitibial area reaches apex. Genital capsule similar to 
that for T. orientalis n.sp. (Fig. 37); S7 relatively glabrescent, 
triangular lateral lobes fused with short ligulate process, 
subsuming basal teeth, posterior projections virtually 
obsolete (Fig. 51).— Labrum, mandible medially, scape, 
tarsi, tibiae, distal ends femora orange-brown, except fore 
basitarsus cream or pale orange-brown; flagellomeres F2-8 
yellow-brown ventrally; remainder of flagellum dark brown. 
Tl-5 with narrow silver bands; T7 dark orange-brown. 
Wings noticeably darkened .—Scutum with dull sheen, 
moderate pit-reticulation and close, small punctures .—Face 
with dense, long, finely-branched, orange hair. Scutum with 
close, long, plumose, orange hair; fore basitarsus with plume 
of long orange hair on proximal half (Fig. 3); mid and hind 
femora with unusually long, dense, orange hair (Fig. 4). 
Female (AM K.344667 ).—Head width 4.05 mm, body 
length 11.7 mm. Relative dimensions: HW 50, HF 39, UID 
29, UFW 32, FID 32, WOC 13, MOD 3, OOD 8, IAD 8, 
ASD 4, AOD 9, MF 21, BMW 7, MSF 2.0, SF 16, SW 
3, FF c. 31 .—Eyes hairy; face slightly wider than longer, 
inner orbits parallel; malar space moderately long (length 
c. 0.4x basal mandibular width); clypeus convex, sagittally 
flattened, basal suture V-shaped; basal width clypeus < 2x 
length subantennal suture; middle flagellomeres c. 1.1.x 
as long as wide; hind tibial spur with c. 7 long teeth; tarsal 
claws simple; pygidial plate emarginate with low medial 
elevation.— Labrum, mandible, tarsi, hind tibiae, apices 
femora orange-brown, with dark brown medially on fore 
and mid tibiae; flagellomers F2-10 yellow-brown ventrally; 
remainder of flagellum dark brown. Tl-4 with narrow silver 
bands. Wings darkened .—Clypeus weakly reticulate basally 
with dense medium punctures medially, sparse laterally, 
apico-lateral corners with dense, fine punctures. Scutal 
sculpture as for male .—Face with long, plumose, pale hair, 
dark-tipped near ocelli, dense in paraocular areas and on 
frons, sparse on clypeus and supraclypeal area. Scutum 
with close, plumose, dark-tipped pale brown hair; scopal 
hair orange-brown laterally, darker medially; pre-pygidial 
fimbria dark brown. 
