Trichocolletes sericeus (Smith)

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 : 36

Trichocolletes sericeus (Smith)

Figs 5 , 40, 42, 73, 113

Anthoglossa sericea Smith, 1862, p. 59 (female).

Trichocolletes (Trichocolletes) sericeus .— Michener, 1965, p. 80.

Trichocolletes (Trichocolletes) marginatulus Michener, 1965, p. 246 . n. syn.

Specimens examined. The holotypes of T. sericeus ♀, Australia, BMNH Hym 17.a.395 and T. marginatulus ♂, Dunwich, Stradbroke Island, Queensland, 21 Aug. 1958, C. D. Michener, ANIC and the following. New South Wales: ♀, Kandos Weir, 10 Nov. 1981, N. W. Rodd, AM (K.344532); 3♂, 2♀, Mellong Swamp (33.0858°S 150.7058°E), 29 Sep.–3 Nov. 2000, M. Batley, ex Dillwynia floribunda , Podolobium ilicifolium , Daviesia alata & Daviesia acicularis, AM (K.224180–81; K.316504–06); ♀, Mellong Swamp, 6 Oct. 2001, M.Batley, ex Podolobium ilicifolium, AM (K.316507); 4♂, Mellong Swamp (33.0858°S 150.7058°E), 25 Sep. 2009, M. Batley, AM; 10♂, 5♀, Mellong Swamp, 12–21 Oct. 2001, J. Indsto, AM. Queensland: ♂, ♀, Dunwich, Stradbroke Is, 21–22 Oct. 1958, C. D. Michener, UQIC; ♂, ♀, Dunwich, Stradbroke Island, 21 Aug. 1958, C. D. Michener, ANIC. South Australia: ♀, 12 km S Monarto South Ferries Nat Pk, 8 Oct. 1973, P. B. McQuillan, on Leptospermum bloom, SAM (32- 024667); ♂, Pinnaroo (35.5539°S 140.7614°E), 7 Oct. 2003, M. Batley, ex Dillwynia sp., AM (K.316508). Victoria: ♂, ♀, Hattah, 11 Oct. 1953, P.J., MV (16505, 48).

Diagnosis

Eyes not hairy; metasomal bands broad; prominent supraclypeal area inclined relative to clypeus. Male scapes swollen ( Fig. 5 ); supraclypeal area with dense hair. Female clypeus with coarse, dense punctures.

Remarks. Michener (1965) gave detailed descriptions of this species as T. marginatulus . Similar to T. chrysostomus from which it is distinguished by slightly smaller size (length male c. 11 mm, female c. 11.5 mm), the presence of hair on supraclypeal area of male and the density of punctures on the clypeus of female. Male genitalia and hidden sterna (Figs 40, 42, 73) are almost identical to those of T. chrysostomus .

Distribution. Southeastern Australia between Brisbane and Adelaide (MDD, SB, SEQ) ( Fig. 113 ).

Figures

Figs 5–9. Parts of antennae of male Trichocolletes illustrating: (5) swollen and (6) non-swollen scapes; (7) modified F1 and F11; (8) crenulate flagellum and (9) modified F11.

Figs 104–115. Known distribution of Trichocolletes species.