Trichocolletes dowerinensis Rayment, 1931

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 : 17-18

Trichocolletes dowerinensis Rayment

Figs 32, 41, 55, 91

Trichocolletes dowerinensis Rayment, 1931, p. 162 (male).

Specimens examined. The holotype ♂, Dowerin, Western Australia,ANIC and the following. Western Australia: ♂, 9 km E by S Carrabin, 9 Oct. 1981, I. D. Naumann & J. C. Cardale, ANIC; ♂, Bejoording, Dec. 1949, R. P. McMillan, WAM (13818); 3♀, Boorabbin Rock, 4–9 Oct. 1981, T. F. Houston, on flowers of Daviesia croniniana & Jacksonia, WAM (13848–50); 3♂, 2♀, Broomehill, WAM (13712,74–76,13820); ♀, 22 km N Bullfinch, 7 Sep. 1979, T. F. Houston, on flowers of Swainsona microphylla, WAM (13967); ♂, Cunderin, Aug.–Sep. 1913, WAM (13822); ♂, Dryandra , 11 Oct. 1965, A. Douglas, WAM (13519); 6♂, 31 km 9° W of N Eneabba, 28 Aug.1999, T. F.Houston, on flowers of Daviesia incrassata ssp. teres, WAM (27526–31); ♀, Eneabba, 6 Sep.1996, R. P.McMillan, on flowers of Jacksonia ulicina, WAM (18463); ♂, Eneabba, 13 Sep. 1996, R. P. McMillan, on Daviesia, WAM (21023); ♀, NE Eneabba, 27 Aug.1995, J. Cane & L. Kervin, ex Daviesia sp., WAM (32094); ♀, 60 km N Esperance (33.3611°S 121.6992°E), 29 Sep. 2004, M. Batley, ex Daviesia sp., AM (K.316513); 4♂, 13 km 35°S of W Eurardy HS (27.7611°S 114.5694°E), 25–26 Aug. 1999, T. F. Houston, on flowers of Mirbelia trichocalyx and Jacksonia velutina, WAM (27495–98); 6♀, 61 km E Hyden, 14 Oct. 1978, T. F. Houston, on flowers of Burtonia hendersoni, WAM (13842–47); ♂, 7.5 km WSW Lake Cronin, 19–26 Sep. 1978, T. F. Houston, on flowers of Daviesia aphylla and Gastrolobium sp., WAM (13516–17); 3♂, ♀, 5.5–6.5 km SW McDermid Rock, 27 Sep.–3 Oct. 1978, T. F.Houston, on flowers of Pultenaea sp. & Daviesia aphylla, WAM (13513–5, 13855); ♂, Merredin, Oct. 1948, A. Douglas, WAM (13821); ♂, Minnivale, WAM (13715); 2♀, Mt Observation, 21 Oct. 1987, R. P. McMillan, WAM (13853–54); ♂, National Park, WAM (13819); ♂, ♀, 6 km W Newdegate (33.1011°S 118.9639°E), 8 Oct. 2009, M. Batley, ex Gastrolobium ilicifolium, AM ; ♂, 2♀, North Tarin Rock Reserve (32.98°S 118.23°E), 16–18 Oct. 1985, T. F. Houston, on flowers of Gastrolobium sp., WAM (13518, 13851–52); ♂, ♀, Stirling Ranges NP SE Camel Lake, 2 Oct. 1995, J. Cane & L. Kervin, ex Gastrolobium spinosum & Daviesia flexuosa, WAM (32098); ♀, 12 km NW Tarin Rock (33.0544°S 118.1456°E), 9 Oct. 2009, M. Batley, ex Gastrolobium glaucum, AM ; ♀, Tutanning Reserve 18–25 km E Pingelly, 30 Oct.–3 Nov.1980, T.F.Houston, on flowers of Daviesia brevifolia, WAM (13856); ♂, Wamenusking, WAM (13761); 2♂, 2♀, 15 km N Westonia (31.1981°S 118.7586°E), 19 Sep. 2004, M. Batley, ex Gastrolobium sp., AM (K.316509–12); ♂, 23 km E Yellowdine, 10 Oct. 1981, I. D. Naumann & J. C. Cardale, ANIC.

Diagnosis

Length male c. 12 mm, female c. 14 mm; eyes hairy; metasomal bands broad silver. Male hind tibia and basitarsus broad, flat; metasoma with prominent stiff, black setae. Female pygidial plate with deep, linear emargination, tarsal claws simple.

Descriptions

Male (K.316510).— Head width 4.25 mm, body length 11.9 mm. Relative dimensions: HW 50, HL 36, UID 33, UFW 33, LID 30, DMA 29, HVO 4, WOC 15, MOD 4, OOD 9, IAD 9, ASD 3, AOD 9, ML 18, BMW 7, MSL 2.5, SL 15, SW 4, FL c. 54.— Eyes hairy; face broad, inner orbits slightly convergent ventrally; length malar space c. 0.45× basal width mandible; middle flagellomeres c. 1.25× as long as wide; fore and mid basitarsi bowed transversely; mid basitarsus broad and laterally compressed; hind basitarsus flattened with slight transverse curvature and expanded posteriorly (ta2,3 less strongly expanded); hind tarsus 1.1× as long as tibia; hind basitarsus 2.4× as long as wide; basitibial region separated from surroundings by sharp edges; fore tibial calcar with short apical spine but without teeth. Penis valves short (Fig. 32); S7 unlike any other species, lateral lobes rounded and bulbous (Fig. 55).— Labrum, mandible basally, apical half of clypeus milky or yellow-brown; basal 10% scape orange-brown; femora, tibiae and tarsi orange-brown with dark suffusions on femora; anterior face fore basitarsus with cream marking; ventral surface flagellum brown. T1–3 with broad silver-white bands, remaining terga with similar bands becoming increasingly translucent from T4 to T6.— Scutum strongly reticulate.— Face with dense, long, erect, plumose, orange hair. Scutum with open, long, plumose, dull orange hair; fore basitarsus without plume; margins of hind tibia and tarsi with conspicuous fringes of open, long, white hair; T3–7 with scattered, erect, long black setae, denser on T6,7.

Female (AM K.316509), not previously described.— Head width 4.6 mm, body length 13.9 mm. Relative dimensions: HW 50, HL 36, UID 31, UFW 32, LID 31, DMA 29, HVO 3, WOC 14, MOD 4, OOD 8, IAD 8, ASD 3, AOD 9, ML 19, BMW 6, MSL 2, SL 16, SW 3, FL c. 30.— Eyes hairy; face broad, inner orbits parallel; length malar space c. 0.35× basal width mandible; clypeus convex, sagittally flattened; supraclypeal area prominent; middle flagellomeres c. 1.3× as long as wide; inner hind tibial spur with c. 11 teeth; basitibial area relatively small, well-defined except apically; tarsal claws simple; fore tibial calcar with 0 to 2 teeth; pygidial plate with long, linear emargination.— Labrum, mandible medially, tibiae, tarsi, anterior surface of fore femur and distal ends of mid and hind femora, orange-brown; apical half clypeus dark brown. T1–4 with white apical bands.— Clypeus very weakly reticulate with medium to large punctures, dense medially, sparse laterally; extreme lateral margins densely and finely punctate; supraclypeal area impunctate medially, margins densely punctate.—Paraocular areas and frons with long, plumose pale orange-brown hair, white in lower paraocular areas; scutum with open, plumose, brown-tipped, pale orange hair; prepygidial fimbra dark brown.

Remarks. The female has not previously been described. This species is referred to as F257/M 218 in Houston (2000).

Distribution. Southwestern Western Australia (AW, COO, ESP, GS, JF, MAL) ( Fig. 91 ).

Figures

Figs 80–91. Known distribution of Trichocolletes species.