Revision of the Australian Bee Genus Trichocolletes Cockerell (Hymenoptera: Colletidae: Paracolletini) Batley, Michael Records of the Australian Museum 2012 Rec. Aust. Mus. 2012-05-23 64 1 1 50 Batley, 2012 Batley 2012 [949,1289,432,458] Insecta Colletidae Trichocolletes Animalia Hymenoptera 11 11 Arthropoda species brunilabrum sp. nov.   Type.  Holotype ♂, 7 kmN WongawolHS, Western Australia,  29–30 Jul. 1983, T. F. Houston& R. P. McMillan, on flowers of  Swainsona, in WAM13651.  Specimens examined. The holotypeand the following.  Western Australia:  3♂, same data as holotype WAM(13648–50);  ♀, Belele, A. Snell, WAM(19118);  2♀, Belele, WAM(13710–11);  3♀, Boolathana Station( 24.53°S 113.78°E),  29 May–25 Aug. 1995, N. Hall, WAM(22207–08, 21024);  ♀, Bush Bay( 25.06°S 113.70°E),  23 May–23 Aug. 1995, N. Hall, WAM(21025);  ♀, 37 kmSW GlenayleHS,  6–9 Aug. 1983, T. F. Houston& R. P. McMillan, on flowers of  Swainsona, WAM(13652);  ♀, 13 kmWSW Hamelin,  23 Aug. 1980, T. F. Houston, on flowers of  Swainsona, WAM(13989);  3♀, 30 kmNW Lorna GlenHS,  10 Aug. 1983, T. F. Houston& R. P. McMillan, on  Indigofera georgei, WAM(13653–55);  3♀, 31 kmESE Minnie CreekHS,  2 Sep. 1980, C. A. Howard& T. F. Houston, on flowers of  Swainsona, WAM(13984–86). Diagnosis Length c. 11 mm; eyes hairy; scape black in both sexes; legs black; metasoma sericeous with moderately wide, silver bands, narrowly ferruginous across anterior margins; labrum without a tubercle; known only from western Australia. Male fore basitarsus with short hair only; S7 with narrow, rectangular lateral lobes. Female clypeus coarsely sculptured; hind tarsal claw with inner ramus. Descriptions Male ( holotype).— Headwidth 3.60 mm, body length 11.1 mm. Relative dimensions: HW 50, HL 37, UID 30, UFW 31, LID 29, DMA 28, HVO 4, WOC 14, MOD4, OOD 8, IAD 8, ASD 3, AOD7, ML17, BMW 7, MSL 2.5, SL 15, SW 3, FL c. 52.— Eyeshairy, length malar space c. 0.25× basal mandibular width; length flagellum equal to head width, all flagellomeres longer than wide; hind tarsus 0.9× as long as hind tibia; hind basitarsus 4.4× as long as wide; posterior carina of basitibial area extends well beyond apex. Genital capsule similar to that for  T. orientalis n.sp.(Fig. 37); S7 with thin, rectangular lateral lobes and large basal teeth (Fig. 49).— Labrumamber with black suffusions; mandible medially amber; flagellum dark brown, paler ventrally; distitarsi apically orange-brown. T1–5 with broad, silver bands.— Clypeuscoarsely punctate, with moderately large, coalescent punctures and irregular, narrow interspaces; scutumwith dull sheen, moderately strong pit-reticulation and close small punctures.— Facewith dense, long, white hair. Scutumwith close, long, finely-branched pale brown hair; fore basitarsus without distinct plume; hind femur with open fringe long white hair on anterior margin. Female ( WAM13653).— Headwidth 3.90 mm, body length 11.6 mm. Relative dimensions: HW 50, HL 37, UID 29, UFW 32, LID 35, DMA 30, HVO 3, WOC 15, MOD4, OOD 8, IAD 7, ASD 3, AOD9, ML15, BMW 8, MSL 2.0, SL 15, SW 3, FL c. 29.— Eyeshairy; length malar space c. 0.15× basal mandibular width; clypeus gently convex, basal suture shallowly V-shaped; middle flagellomeres c. 1.1× as long as wide; inner hind tibial spur with c. 8 long teeth; hind tarsal claw with distinct, sharp inner ramus, mid tarsal claw with minute inner ramus, fore tarsal claw simple; pygidial plate with medial elevation and small emargination.— Labrum, mandible medially dark brown; distitarsi apically orange-brown. T1–4 with wide silver bands, narrowly ferruginous across anterior margins.— Clypeusstrongly reticulate, coarsely punctate with large dense punctures partially coalescent. Scutumdull with strong pit-reticulation obscuring punctures.— Facewith long white plumose hair, becoming pale brown hair near ocelli, dense in paraocular areas and on frons, sparse on clypeus and supraclypeal area. Scutumwith close, plumose, pale orange-brown hair; tibial scopa brown medially, white laterally; prepygidial fimbria pale brown.   Remarks. The sexes were associated by morphological similarity and geographic distribution only. This species is referred to as F 267 in Houston (2000).   Distribution. Predominantly east from Shark Bay, Western Australia, with one record from near Perth ( CAR, GAS, MUR, SWA) ( Fig. 85). WAM 13651 1983-07-29 1983-07-30 1983-07-29 T, R, WAM F. Houston & P. McMillan Wongawol 11 11 1 1 Western Australia holotype WAM 13651 [839,1232,670,689] 1983-07-29 1983-07-30 1983-07-29 WAM F. Houston & P. McMillan Wongawol 11 11 3 3 Western Australia WAM Belele, A & Snell 11 11 1 1 Western Australia [918,1178,694,713] WAM Belele 11 11 2 2 Western Australia 1995-05-29 1995-08-25 1995-05-29 WAM N. Hall -24.53 Boolathana Station 750 113.78 11 11 3 3 Western Australia 1995-05-23 1995-08-23 1995-05-23 WAM N. Hall -25.06 Bush Bay 749 113.7 11 11 1 1 Western Australia [918,1317,766,785] 1983-08-06 1983-08-09 1983-08-06 T Glenayle 11 11 1 1 Western Australia [1325,1464,766,785] R Houston 11 11 1 Western Australia 1980-08-23 T Hamelin 11 11 1 1 Western Australia [918,1342,838,857] 1983-08-10 T Lorna Glen 11 11 3 3 Western Australia R Houston 11 11 1 Western Australia [863,1327,862,881] McMillan 11 11 1 Western Australia 1980-09-02 T C. A. Howard Minnie Creek 11 11 3 3 Western Australia