Trichocolletes nitens, Batley, 2012

Batley, Michael, 2012, Revision of the Australian Bee Genus Trichocolletes Cockerell (Hymenoptera: Colletidae: Paracolletini), Records of the Australian Museum (Rec. Aust. Mus.) 64 (1), pp. 1-50: 30-31

publication ID 10.3853/j.0067-1975.64.2012.1589

publication LSID

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scientific name

Trichocolletes nitens


Trichocolletes nitens   n.sp.

Figs 13 View Figs 10–13 , 69 View Figs 68–79 , 108 View Figs 104–115

Type. Holotype ♂, 5.5–6.5 km SW McDermid Rock , Western Australia, 27 Sep.–3 Oct. 1978, T. F. Houston, on flowers of Daviesia aphylla   , in WAM 13800 View Materials .  

Specimens examined. The holotype and the following. Western Australia: ♀, 10 km NE Kulin (32.6014°S 118.2158°E), 10 Oct. 2009, M. Batley, ex Gastrolobium   sp., AM; 3♂, 7♀, 5.5–6.5 km SW McDermid Rock, 27 Sep.–3 Oct. 1978, T. F. Houston, on flowers of Daviesia aphylla   & Leptospermum erubescens, WAM   (13800–10); 6♀, Merredin, WAM (13509,10,13778–81); 2♀, Merredin (31.4594°S 118.3169°E), 19 Oct. 2009, M. Batley, ex Gastrolobium   sp., AM (K.344745); ♀, Minnivale, WAM (13811); ♂, ♀, 6 km W Newdegate (33.1011°S 118.9639°E), 8 Oct. 2009, M. Batley, ex Gastrolobium ilicifolium, AM   ; ♂, ♀, 15 km N Westonia (31.1981°S 118.7586°E), 19 Sep.2004,M. Batley, ex Gastrolobium   sp., AM (K.344743– 44); 2♂, ♀, Yelbeni, Sep., B. O’Connor, WAA (45277–78, 45303).


Dark-coloured; eyes not hairy; metasomal bands wide, orange-gold. Male fore trochanter with blunt projection; mid femur incrassate. Female scutal hair dark brown; hind tibial scopa dark brown; hind tarsal claw simple.


Male— Head width 4.00 mm, body length 12.6 mm. Relative dimensions: HW 50, HL 39, UID 30, UFW 39, LID 30, DMA 30, HVO 2, WOC 14, MOD 4, OOD 8, IAD 8, ASD 3, AOD 7, ML 18, BMW 6, MSL 0.5, SL 13, SW 3, FL c. 50.— Eyes not hairy; face narrow; malar space short (length c. 0.1× basal mandibular width); flagellomeres c. 1.5× as long as wide. Legs slender; fore trochanter with triangular ventral projection; mid femur incrassate; hind tarsus as long as hind tibia; hind basitarsus 3.5× as long as wide. Genital capsule generally like that for T. orientalis   n.sp. (Fig. 37); S7 (K.344743) with long, thin posterior projections and ligulate processes, rectangular lateral lobes with sinuate posterior marg in ( Fig. 69 View Figs 68–79 ).— Labrum, mandible and rim of clypeus amber; scape, tarsi, tibiae and femoral apices orange-brown; remainder of legs dark brown; flagellum brown, paler ventrally. T 1–5 with wide, bright gold bands; T 7 dull orange-brown.— Clypeus densely punctate; scutum   with weak pit-reticulation, dull sheen and dense, small punctures.— Face densely covered with bright orange hair, stiffly erect on clypeus. Scutum   closely covered with long, plumose orange hair; fore basitarsus with dense plume of long golden hair; hind femur with sparse fringe long hair on anterior margin; mid basitarsus with conspicuous brush of erect golden hair on anterior margin; metasoma sericeous with semi-adpressed golden pubescence.

Female ( AM K.344744).— Head width 4.35 mm, body length 12.9 mm. Relative dimensions: HW 50, HL 37, UID 29, UFW 31, LID 30, DMA 27, HVO 2, WOC 13, MOD 3, OOD 8, IAD 13, ASD 3, AOD 9, ML 20, BMW 6, MSL 0.5, SL 14, SW 3, FL c. 31.— Eyes not hairy; inner orbits parallel; 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; tarsal claws simple; pygidial plate entire with broad medial elevation.— Rim of clypeus amber; labrum and mandible orange-brown; legs dark brown. T 1–4 with wide, deep gold bands.— Clypeus polished apically, increasingly reticulate basally, with large punctures, sparse apically becoming close basally; scutal sculpture as for male.— Face with long white, plumose hair, becoming pale orange near ocelli, dense in paraocular areas and on frons, sparse on clypeus and supraclypeal area. Scutum   densely covered with short, plumose, brown hair, tipped with dark brown; metasoma sericeous with semi-adpressed golden pubescence; tibial scopa dark brown; prepygidial fimbria orange-gold.

Remarks. This species can usually be distinguished from T. centralis   n.sp. by its darker colouration, but males also have features not found in T. centralis   n.sp.: a projection on the fore trochanter, and mid femur incrassate and a conspicuous brush on the anterior margin the mid basitarsus. Females differ from T. centralis   n.sp. mostly by colour but also by the simple hind tarsal claw.

This species is referred to as F256/M 230 in Houston (2000).

Distribution. Inland parts of southwestern Australia (AW, MAL, COO) ( Fig. 108 View Figs 104–115 ).

Etymology. The specific name is a Latin adjective meaning brilliant or beautiful, referring to the conspicuous bright gold metasomal bands.


Tavera, Department of Geology and Geophysics


Western Australian Museum


Australian Museum


University of Modena and Reggio Emilia, Department of Biology


Musee de Lectoure