Scaptotrigona xanthotricha Moure

Melipona trombeta Müller, 1875: 43, nomen nudum.

Trigona aethiops Müller, 1921: 302, nomen nudum.

Trigona trombeta foetida Müller, 1921: 320, nomen nudum.

Scaptotrigona postica xanthotricha Moure, 1950: 78 .

Nannotrigona (Scaptotrigona) postica xanthotricha (Moure); Moure, 1953: 136.

Trigona (Scaptotrigona) xanthotricha (Moure); Kerr, 1960: 386.

Trigona (Scaptotrigona) xanthotrycha (Moure); Sakagami et al., 1963: 116, lapsis calami.

Scaptotrigona xanthotrica (Moure); Nogueira-Neto, 1970: 34, lapsis calami.

DIAGNOSIS: Like the previous species, this is a robust bee similar to the Amazonian S. nigrohirta, but occurring in southern and eastern Brazil. It can be distinguished from S. nigrohirta by the typical presence of more minute plumose setae on tergum I in S. nigrohirta (although not all S. nigrohirta have such setae, either worn or truly lacking), versus their absence in S. xanthotricha; and by the typically black bristles of the mesoscutal anterior border in S. nigrohirta versus the fulvous to dark fulvous bristles of S. xanthotricha .

MATERIAL EXAMINED: 4⚲⚲, Brazil: Retiro, Pedro do Rio, Est. do Rio, III-1954 [March 1954], C.A.C. Seabra coll. (SEMC); 3⚲⚲, Brazil: Ritapolis, MG [Minas Gerais], SF-23, 44-21d/ 19-I-1974 [19 January 1974], M. Mazucato, Velthuis, J.M.F. Camargo leg. (SEMC); 2⚲⚲ [on same pin], Brazil: S.J. Petropolis, Espirito Santo, II-1955 [February 1955], P. Tetes e F. Oliveira (SEMC) .