Resumen

ROIG ALSINA, Arturo. A review of the albidohirta group of Ptilothrix (Hymenoptera: Apidae: Emphorini). Rev. Soc. Entomol. Argent. [online]. 2007, vol.66, n.3-4, pp.113-119. ISSN 0373-5680.

The albidohirta group of Ptilothrix Smith includes three species: Ptilothrix albidohirta Brèthes, P. concolor sp. nov., and P. nemoralis sp. nov. The group is known from northern and western Argentina and from central Bolivia. One of its species, P. albidohirta, reaches high altitudes in the Andes mountains, up to 3600 m a.s.l., while the other two species occur in the lowlands. A characterization of the group, descriptions of the species, and illustrations are provided.

Palabras clave : Bees; Emphorini; Argentina; Bolivia.

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