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 [257,545,592,618] Insecta Colletidae Trichocolletes Animalia Hymenoptera 14 14 Arthropoda species centralis sp. nov.   Type.  Holotype ♂,  30 kmW Sandstone[ 27.59S, 119.18E], Western Australia,  7 Sep. 1981, T. F. Houston, on flowers of  Daviesia grahami, in WAM13563. Co-ordinateson the label refer to the location of Sandstoneat 27°59'S 119°18'E.  Specimens examined. The holotypeand the following.  New South Wales: 3♂, Dolo Creek ( 31.6933°S 142.8697°E), 7 Sep. 2007, M. Batley, AM(K.334669–71).  Queensland: ♂, 34 kmE Cunnamulla ( 28.0456°S 146.0658°E), 24Aug. 2007, M. Batley, AM(K.334668); 7♂, 2♀, 70 miNW Quilpie, 17 Aug. 1968, J. C. & T. F. Houston, on  Crotolaria eremaea, SAM(32-024508,10,11) & UQIC; 2♂, 4♀, 8 miNE Windorah, 16 Aug. 1968, J. C. & T. F. Houston, on  Kennedia prorepens, UQIC & SAM(32-024509).  South Australia: ♂, ♀, 70 miN Marree, 13 Aug. 1969, E. M. Exley, UQIC; 3♂, 9♀, Simpson Desert, 15–18 Sep. 1971, T. F. Houston, on  Swainsona, Crotalaria, Goodenia&  Helipterum, SAM(32-024645–56).  Western Australia: 3♂, 2♀, 24–25 kmENE Beyondie HS, 17–20 Aug. 1984, T. F. Houston & B. P.Hanich,on flowers of  Thryptomene maisonneuvei&  Scaevola spinescens, WAM(13540–44); ♀, Beyondie Little Sandy Desert ( 24.5833°S 120.2833°E), 28 Aug. 1997, D. Knowles & A. Start, visiting  Swainsona, WAM(21021); ♂, ♀, Cardabia, K. T.Richards, WAA(45286–87); ♂, 36 kmN Charlies Knob, 1 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Swainsona, WAM(13558); ♂, 28 kmN Charlies Knob, 6 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Dicrastylis exsuccosa, WAM(13557); 6♂, 37 kmSW Glenayle HS, 6–9 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Swainsona, WAM(13547–52); 3♂, ♀, Karijini National Park ( 22.5250°S 118.7833°E), 20 Aug. 2001, T. F. Houston, on flowers of  Gompholobium polyzygum, WAM(29092–95); 8♂, 2♀, 15 kmN Kumarina Hotel, 21 Aug. 1984, T. F. Houston & B. P. Hanich, on flowers of  Thryptomene maisonneuvei&  Swainsona, WAM(13530–39); ♀, 28 kmWSW Lenister, 11 Aug. 1983, T. F. Houston & R. P.McMillan, on flowers of  Baeckea stowardii, WAM(13556); ♂, 33 kmWSW Lenister, 11 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Dicrastylis brunnea, WAM(13555); ♂, ♀, 30 kmNW Lorna Glen HS, 10 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Ptilotus obovatus, WAM(13553–54); 2♂, 17 kmE Mt Nossiter, 7 Aug. 1983, T. F. Houston & R. P. McMillan, on flowers of  Dicrastylis exsuccosa, WAM(13559–60); 4♂, 30 kmW Sandstone, 7 Sep. 1981, T.F. Houston, on flowers of  Daviesia grahami, WAM(13563–67); 2♀, 8 kmNE Tamala HS ( 26.70°S 113.71°E), 21–23 Aug. 1980, C.A.Howard & T. F. Houston, on flowers of  Mirbelia ramulosa, WAM(13835, 14422); 3♂, 7♀, 16 kmSW Tangadee HS, 22Aug.1984, T. F.Houston & B. P.Hanich, on flowers of  Swainsona, WAM(13520–29); 2♂, ♀, 25 kmSW Tangadee HS, 22 Aug. 1984, T. F. Houston & B. P. Hanich, on flowers of  Swainsona, WAM(13523,45,46); ♂, 7 kmN Wongawol HS, 29–30 Jul. 1983, T. F. Houston & R. P. McMillan, WAM(13561); ♀, Woomera, 15 Sep. 1968, H. Mincham, on flowering legume shrub, SAM(32-024507). Diagnosis Length 11–13 mm; eyes not hairy; malar space short; metasoma sericeous with broad bands. Male metasoma slender; legs slender; tibiae, tarsi and antenna ventrally orange-brown. Female pubescence of scutumshort, dense; only hind tarsal claw with small inner ramus. Variation The colour of the metasomal bands varies from silver to moderately bright gold and that of the scutal hair ranges from orange-brown to almost white. No correlation was found between colour and geographic location. The apical half of the flagellum is darkened ventrally in some males. Descriptions Male ( holotype).— Headwidth 3.80 mm, body length 11.8 mm. Relative dimensions: HW 50, HL 39, UID 30, UFW 32, LID 31, DMA 30, HVO 5, WOC 14, MOD4, OOD 8, IAD 9, ASD 3, AOD8, ML20, BMW 7, MSL 1.0, SL 12, SW 3, FL c. 53.— Eyesnot hairy; face narrow; malar space short (length c. 0.1× basal mandibular width); length flagellomeres c. 1.5× width. Legs slender; hind tarsus 1.2× as long as hind tibia; hind basitarsus 3.5× 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 long, thin posterior projections and ligulate processes, rectangular lateral lobes with sinuate posterior margin (Fig. 52).— Labrumcream; ventral rim clypeus amber; scape, pedicel, flagellum ventrally, tarsi, tibiae and femora orange-brown, with medial brown areas on fore and mid femora; flagellum dorsally, coxae, trochanters dark brown. T1–5 with broad, pale gold bands (see variation); T7 and large part of S6 orange-brown.—  Scutumwith dull sheen, weak pit-reticulation and dense, small punctures.— Facewith dense orange hair, erect on clypeus. Scutumwith close, long, plumose, orange hair; fore basitarsus with tapered golden plume; hind femur with fringe of long hair on anterior margin; metasoma sericeus with semi-adpressed simple hair. Female ( WAM13523).— Headwidth 4.00 mm, body length 12.6 mm. Relative dimensions: HW 50, HL 39, UID 30, UFW 32, LID 32, DMA 30, HVO 4, WOC 13, MOD3, OOD 8, IAD 7, ASD 4, AOD9, ML20, BMW 6, MSL 0.5, SL 15, SW 3, FL c. 32.— Eyesnot hairy; face quadrate; malar space short (length c. 0.1× basal mandibular width); clypeus transversely convex; middle flagellomeres as long as wide; inner hind tibial spur with c. 7 long, well-spaced teeth; fore tibial calcar with c. 5–6 strong teeth; hind tarsal claw only with small inner ramus; pygidial plate apically entire with broad medial elevation.— Labrum, mandibles medially, apical rim clypeus amber; anterior margins of fore and mid tibia orange-brown; remainder of legs dark brown. T1–4 with broad pale gold bands, narrowly ferruginous across anterior margin.— Clypeusreticulate basally, with large punctures, becoming polished and sparsely punctate apically. Scutal sculpture as for male.— Facewith long white, plumose hair, becoming dark brown near ocelli, dense in apicolateral corners of clypeus, paraocular areas and on frons, sparse on clypeus and supraclypeal area. Scutumdensely covered with short, finely-branched, pale brown or orange-brown hair; tibial scopa white or pale orange except near basitibial area; prepygidial fimbria gold.   Remarks. This species is referred to as F246 (part), M219, F273 and M 228 in Houston (2000).   Etymology. The specific name, used as a Latin adjective, refers to the regions where the species has been found.   Distribution. Central, arid areas of Australia(BHC, CHC, GAS, GAW, GD, GS, LSD, ML, MUR, PIL, SSD, STP) ( Fig. 88).   T. pulcherrimus(dorsal view) the following.  South Australia:  6♂, Hincks Nat. Pk( 33.50°S 136.90°E),  12 Oct. 1972, C. A. & T. F. Houston, on  Dillwynia uncinata, SAM(32- 024627 to 32);  ♀, Kimba-Wudinna Road,  8 Oct. 1974, T. F. Houston, SAM(32-024633);  ♂,  35 kmE Wudinna( 33.1581°S 135.8219°E),  15 Sep. 2004, M. Batley, AM(K.316503).   Western Australia: ♂, 3♀, Badgingarra National Park,  1–3 Oct. 1980, T.F. Houston, on flowers of  Jacksonia, WAM(13568–71);  ♂, ♀, Badgingarra Natl Park( 30.5306°S 115.4306°E),  15 Sep. 1995, J. Cane& L. Kervin, ex  Daviesia?, WAM(32095–96);  ♂, ♀, 18 kmNW Eneabba,  9–12 Sep. 1987, T. F. Houston, on flowers of  Jacksonia ulicina, WAM(13578, 13858);  ♂, 31 km 9° Wof N Eneabba,  28 Aug. 1999, T. F. Houston, on flowers of  Daviesia incrassatassp. teres, WAM(27522);  ♂, c. 5 kmW EurardyHS ( 27.6611°S 114.6944°E),  24 Aug. 1999, T. F. Houston, on flowers of  Jacksonia cupulifera, WAM(27505);  ♂, 13 miN Geraldton,  19 Aug. 1971, T. F. Houston, SAM(32-024626);  ♂, Kenwick,  14 kmSE Perth,  10 Sep. 1980, J. Lewis, on  Bossaeia, WAM(13600);  6♀, Watheroo National Park( 30.20°S 115.83°E),  3–5 Oct. 1980, T.F. Houston, on flowers of  Daviesia brevifolia, WAM(13572–77).  Figs 5–9. Parts of antennae of male  Trichocolletesillustrating: (5) swollen and (6) non-swollen scapes; (7) modified F1 and F11; (8) crenulate flagellum and (9) modified F11. Diagnosis Length male c. 12 mm, female c. 13 mm; eyes not hairy; metasomal bands moderately wide; prominent supraclypeal area inclined to clypeus, viewed laterally. Male scapes swollen; supraclypeal area bare, polished, impunctate on anterior surface; female clypeus with open, large punctures. Descriptions Male (AM K.316503).— Headwidth 3.6 mm, body length 11.9 mm. Relative dimensions: HW 50, HL 41, UID 33, UFW 32, LID 30, DMA 30, HVO 4, WOC 15, MOD 5, OOD 9, IAD 8, ASD 3, AOD8, ML 19, BMW 6, MSL 1.5, SL 12, SW 6, FL c.44.— Eyesnot hairy; face narrow, inner orbits subparallel; malar space c. 0.3× basal width mandible; scape swollen (width 0.48× length); anterior face supraclypeal area pentagonal, weakly depressed medially, inclined relative to clypeus viewed laterally; flagellomeres F1–6 flattened ventrally and conspicuously hirsute; middle flagellomeres slightly longer than wide. Legs robust; mid basitarsus short (length 2.3× width); hind tarsus 1.1× as long as hind tibia; hind basitarsus 4.3× as long as wide; basitibial area flattened but acarinate. Genital capsule similar to that for  T. sericeus(Fig. 40); S7 with triangular lateral lobes, basal teeth obsolete, posterior projections small (Fig. 53).— Labrum, mandible medially, scape, mid and hind tarsi, distal ends femora, proximal ends tibiae, ventral surfaces flagellomeres F1–6, distal half F11 orangebrown; legs and remainder of flagellum brown. T1–5 with broad, orange-gold bands, ferruginous across anterior margin.—Anterior face of supraclypeal area polished and impunctate, clypeus densely punctate, except apical margin; scutumdull with strong pit-reticulation obscuring punctures.— Face, except supraclypeal area, with dense, long, minutely-branched, bright orange hair. Scutumwith close, long, plumose, orange hair; fore basitarsi without distinct plume; posterior margin of mid basitarsus with dense fringe of long, golden hair; trochanters and hind femur with copious, long, golden hair. Female (WAM 13568).— Headwidth 4.2 mm, body length 13.0 mm. Relative dimensions: HW 50, HL 39, UID 31, UFW 33, LID 32, DMA 30, HVO 3, WOC 15, MOD 4, OOD 8, IAD 8, ASD 4, AOD9, ML 19, BMW 7, MSL 2, SL 15, SW 3, FL c. 28.— Eyesnot hairy; face approximately quadrate, inner orbits parallel; length malar space c. 0.3× basal width mandible; basal suture clypeus straight; supraclypeal area with triangular anterior face at distinct angle to clypeus viewed laterally; flagellum moderately short; middle flagellomeres approximately as long as wide; inner hind tibial spur with c. 12 long teeth; hind basitibial area large, c. 0.3× as long as hind tibia; tarsal claws with large, triangular inner ramus; pygidial plate emarginate, strongly sculptured.— Labrum, mandible medially, ventral rim of clypeus, f3–10 ventrally, orange-brown; scape, remainder of flagellum and legs dark brown, with dull orange-brown on anterior surface of fore tibia. T1–4 with moderately wide silver-white bands.— Clypeusreticulate with open, large punctures; anterior face of supraclypeal area with sparse punctures; remainder of face densely punctured; scutumdull with strong pit-reticulation.— Facewith long, white, plumose hair becoming pale orange-brown near ocelli, dense in paraocular areas and on frons, sparse on clypeus and supraclypeal area. Scutumwith close, short, plumose, dark-tipped brown hair; hind tibial scopa orange-brown except dark brown near basitibial area; prepygidial fimbria golden-brown.   Remarks. The holotypesof  T. chrysostomusand  T. lucidusboth carry labels with the word “TYPE” in Cockerell’s hand. This species is similar to  T. sericeus, which is found in the eastern half of the continent. Both sexes have a shorter head length than  T. sericeusand males may be distinguished by the bare, sparsely punctate supraclypeal area and females by the less dense punctures of the clypeus. The female specimens examined were less brightly coloured than many of the males, which may be a result of their collection later in the season. This species is referred to as F248/M221 and M 222 in Houston (2000).   Distribution. Coastal Western Australiaand southern South Australia(EYB, GS, MAL, SWA) ( Fig. 89). WAM 13563 1981-09-07 T, WAM F. Houston & Co-ordinates -27.983334 Sandstone 1234 119.3 14 14 1 1 Western Australia holotype 1972-10-12 T -33.5 Hincks Nat. Pk 723 136.9 15 15 6 6 Houston 15 15 1 [979,1353,1643,1662] 1974-10-08 T Kimba-Wudinna Road 15 15 1 1 SAM Houston 15 15 1 2004-09-15 AM Batley -33.1581 35 km E Wudinna 6 135.8219 15 15 1 1 1980-10-01 1980-10-03 1980-10-01 T Badgingarra National Park 15 15 4 3 1 Western Australia 1995-09-15 WAM J. Cane & L. Kervin -30.5306 Badgingarra Natl Park 6 115.4306 15 15 2 1 1 Western Australia 1987-09-09 1987-09-12 1987-09-09 T Eneabba 15 15 2 1 1 Western Australia 1999-08-28 T Eneabba -9.0 15 15 1 1 Western Australia [839,1442,1859,1878] 1999-08-24 T -27.6611 Eurardy 6 114.6944 15 15 1 1 Western Australia 1971-08-19 T Geraldton 15 15 1 1 Western Australia [1084,1349,1907,1926] SAM Houston 15 15 1 Western Australia 1980-09-10 WAM J. Lewis & Bossaeia Kenwick 15 15 1 1 Western Australia 1980-10-03 1980-10-05 1980-10-03 T -30.2 Watheroo National Park 734 115.83 15 15 6 6 Western Australia