Resumen

RODRIGUEZ-PARILLI, Severiano Antonio  y  RONDON GRATEROL, Mervis. Bess (Hymenoptera: Apoidea) visitors of Waltheria americana L. (Sterculaceae) in Rómulo Gallegos University’s agricultural area, Guárico, Venezuela. Zootecnia Trop. [online]. 2011, vol.29, n.3, pp.353-360. ISSN 0798-7269.

The bees are important animals in the pollination of them natural and cultivated plants, inclusive they have established specific relations, appearing botanical important species in the sustentation of bees’s populations. The intention of this investigation was to identify the bees (Hymenoptera: Apoidea) visitors of W. americana L. (Sterculaceae) in agricultural area of the Rómulo Gallegos University, Guárico, Venezuela; in order to evaluate the potential of this plant in the managing of the bees. An area was established by 10 plants of W. americana and all the visitors bees of this plant were collected with insect-net. The samplings were done between the hours 6:00-14:00, during October-November months (2008) by eight samplings for month. There were collected 3009 individuals distributed in four families and 40 species of bees, correspondents to: Apidae 2785 individuals, 22 species; Halictidae 186 individuals, 11 species; Megachilidae 35 individuals, five (5) species and Andrenidae three (3) individuals and two (2) species. Apis mellifera turned out to be the most frequent specie (52,21%). Ten species of bees (25% of the richness) 2835 individuals add up. W. americana is a specie of great potential for the maintenance of the richness and abundance of bees in the agricultural areas of the Rómulo Gallegos University.

Palabras clave : bees; Waltheria; Apoidea.

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