Trichocolletes gelasinus, 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 : 20-21

Trichocolletes gelasinus n.sp.

Figs 14–15 , 33, 59, 96

Type. Holotype ♂, Neerabup National Park , 38 km NNW Perth, Western Australia (31.74°S 115.77°E), 13 Aug. 2000, T. F. Houston, on flowers of Hardenbergia comptoniana , in WAM 27809.

Specimens examined. The holotype and the following. Western Australia: 4♂, same data as holotype ; ♀, Barracca Nature Reserve , 8 km NE Muchea, 23 Jul. 1999, T .F.Houston, on flowers of Daviesia physodes, WAM (27180); ♀, Beechboro , 3 Sep.1969, R . J. Lawrence , WAA (80848) ; ♂, ♀, Beekeepers Reserve Eneabba-Leeman-Jurien area, 18–19 Jul. 1987, M. Lyons, WAM (13638–39) ; 3♂, Boranup , 11 Sep. 1965, G. H. Riley, WAM (13812–14) ; ♂, Busselton , 4 Sep. 1943, O. Dawson, ANIC ; 19♂, 8♀, Cottesloe , WAM (13715–16,19–20,22–46) ; ♀, Drummond Cove , 6 Mar. 1973, N. McFarland, WAA (45288) ; 4♂, 3♀, 13mi. N Geraldton , 19 Oct.1971, T . F. Houston , SAM (32-024634–40) ; 3♀, 13 km S Grass Patch , 17 Oct. 1974, I. D. Naumann & J. C. Cardale, ANIC ; 2♀, 25 km 15°W of N Eneabba , 28 Aug. 1999, T . F. Houston , WAM (27518–19) ; ♀, 31 km 9° W of N Eneabba , 28 Aug. 1999, T . F. Houston , WAM (27532) ; 4♀, Watheroo NP, 3–5 Oct. 1980, T . F. Houston, on flowers of Daviesia divaricata, WAM (13837,39–41); ♂, 18 km NW Eneabba , 9–12 Sep. 1987, T . F. Houston, on flowers of Daviesia, WAM (13640); 2♀, c. 5 km W Eurardy HS, 24 Aug. 1999, T . F. Houston , WAM (27506–07) ; 5♀, 5 km 23°N of W Eurardy HS, 27 Aug. 1999, T . F. Houston , WAM (27500–04) ; 5♀, ♂, Kings Park , Western Australia, 10 Oct. 1988, T . F. Houston , WAM (18456–61) ; ♂, Knights Track Beekeepers Reserve Eneabba-Leeman-Jurien area, 2 Jul. 1987, M. Lyons, on flowers of Daviesia quadrilatera, WAM (13637) ; 2♂, Margt R . Dist., Aug. & Oct. 1912, WAM (13795) & ANIC ; 4♀, Stirling Range , 17 Oct. 1974, C. A. & T . F. Houston , SAM (32-024641–44) ; 3♀, Swanbourne , WAM (13782–84) ; ♀, Swan River , Sep., L. J. Newman, WAA (80828) ; 6♂, Swan River , Jul., D. Swan, WAA (45274–6,79–81) ; ♂, Tathra NP, 26 Jul. 1995, R . P. McMillan , WAM (21022) ; 3♂, Yanchep-Lancelin Rd 10 km ESE Guilderton, 26 Aug. 1982, T . F. Houston, on flowers of Daviesia divaricata, WAM (13634–36).

Diagnosis

Length 13–14 mm; eyes not hairy; metasomal bands broad, white. Male flagellum distinctively modified ( Fig. 14 ); female labrum elongated, tectiform ( Fig. 15 ); malar space short.

Descriptions

Male (holotype).— Head width 4.35 mm, body length 13.1 mm. Relative dimensions: HW 50, HL 36, UID 30, UFW 32, LID 30, DMA 28, HVO 4, WOC 14, MOD 4, OOD 9, IAD 9, ASD 3, AOD 8, ML 21, BMW 6, MSL 1.5, SL 11, SW 3, FL c. 54.— Eyes not hairy; face wide, inner orbits subparallel; length malar area c. 0.25× basal mandibular width; flagellum longer than head width; distal flagellomere expanded, truncate with apical concavity ( Fig. 14 ); middle flagellomeres crenulate, 1.7× as long as wide. Legs slender; hind tarsus as long as hind tibia; hind basitarsus 4.3× as long as wide; posterior carina of basitibial area almost reaching apex; malus of fore tibial calcar truncate and deflexed forming margin of velum. Apex of gonoforceps transversely rather than obliquely truncate (Fig. 33); S7 with large rectangular opening to cavity in the rectangular lateral lobes ( Fig. 59 ).— Labrum, mandible, scape, tarsi, hind tibia, apices fore and mid tibiae orange-brown; flagellum and remainder of legs dark brown. T 1–5 with broad white bands narrowly ferruginous across anterior margin; T 7 red-brown.— Scutum dull with strong pit-reticulation.— Face with dense long, plumose, bright orange hair. Scutum with close to dense, long, plumose, orange hair; fore basitarsus with weak, pale gold plume; anterior margin of hind tibia with weak row of finely-branched white hair.

Female ( WAM 18457).— Head width 4.50 mm, body length 14.0 mm. Relative dimensions: HW 50, HL 37, UID 30, UFW 32, LID 31, DMA 28, HVO 3, WOC 13, MOD 3, OOD 8, IAD 7, ASD 3, AOD 9, ML 21, BMW 6, MSL 1.0, SL 14, SW 3, FL c. 35.—Robust; eyes not hairy; face almost quadrate, inner orbits parallel; length malar space c. 0.15× basal mandibular width; clypeus transversely convex; supraclypeal area prominent; labrum long (length 0.75× width), somewhat tectiform but not carinate ( Fig. 15 ); middle flagellomeres 1.1× as long as wide; apical flagellomere obliquely truncate; inner hind tibial spur with c. 11 strong teeth; fore tibial calcar with c. 4 fine teeth; tarsal claws with large, sharp inner ramus; pygidial plate broad, coarsely coriarius with low, broad medial elevation.— Labrum, mandible, tarsi and tibiae orange-brown; outer faces of fore and hind tibiae and basitarsi with dark brown suffusions; lower margin of clypeus dark brown. T 1–4 with broad, white bands narrowly ferruginous across anterior margins; pygidial plate dull red basally, darker apically; wings darkened.— Clypeus pit-reticulate with dull sheen, closely punctate except along midline.— Face with long, plumose hair, pale ventrally becoming orange-brown towards ocelli, sparse on clypeus and supraclypeal area, dense in paraocular areas, apicolateral corners of clypeus and on frons. Scutum with close, short, plumose, dark-tipped orange-brown hair; prepygidial fimbria orange-brown.

Remarks. Smith (1853) incorrectly associated male and female specimens from different species in his original description of Anthoglossa plumata , as Michener (1965) implied. Mr David Notton (BMNH) kindly examined, described and photographed the male specimen described as A. plumata by Smith and confirmed that it matched the description given above. Accordingly, the female specimen BMNH Hym.17.a.394 is here formally designated as the lectotype of Anthoglossa plumata .

Trichocolletes gelasinus is referred to as F251/M226 (part) in Houston (2000).

Etymology. The specific name, used as a noun in apposition,

is from the Latin word for dimple and refers to the apex of the male flagellum.

Distribution. Coastal southwestern Australia (ESP, GS, MAL, SWA) ( Fig. 96 ).

Figures

Figs 14–15. Trichocolletes gelasinus n.sp. (14) apex of male flagellum (15) clypeus and labrum of female.

Figs 56–67. Seventh sternum of Trichocolletes males.

Figs 92–103. Known distribution of Trichocolletes species.