The first cases of gynandromorphism in oil‑collecting bees (Hymenoptera, Apidae: Centridini, Tapinotaspidini)

Keywords: Gynander, Epicharis, Lophopedia, Intersex, Pollinators, Mosaic gynandromorphy

Abstract

Here we provide descriptions of gynandromorphs of two species oil-collecting bees: Lophopedia nigrispinis and Epicharis iheringii, both with partial bilateral phenotypic asymmetry. The bees have a female phenotype predominantly on mesosoma and metasoma. The specimen of L. nigrispinis has distinct characteristics on legs, suggesting a mosaic pattern of gynandromorphism. The pollen and oil loads on legs suggest that the bee was foraging normally. The gynander specimen of E. iheringii has mostly a female phenotype, except for head, with right half female type and left half male type. The specimen of L. nigrispinis was collected foraging on flowers of Bidens sp. at Parque Nacional Iguazú, Argentina with loads of pollen on legs suggesting it was reproductive and was provisioning a nest. The specimen of Epicharis iheriingi has no evidence of any oil or pollen collection, despite its mostly female phenotype.

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Author Biographies

Leopoldo Jesús Alvarez, Universidad Nacional de La Plata (UNLP), Facultad de Ciencias Naturales y Museo (FCNyM). Buenos Aires, Argentina.

Paseo del Bosque, 1900. La Plata, Buenos Aires, Argentina.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).

Wagner Pereira Silva, Universidade de Brasília (UNB), Instituto de Ciências Biológicas (IB), Departamento de Zoologia - Brasília, DF, Brasil.

Campus Universitário Darcy Ribeiro, Asa Norte, CEP 70910‑900, Brasília, DF, Brasil.

Mariano Lucia, Universidad Nacional de La Plata (UNLP), Facultad de Ciencias Naturales y Museo (FCNyM), División Entomología - Buenos Aires, Argentina.

Paseo del Bosque, 1900. La Plata, Buenos Aires, Argentina.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).

Antonio J.C. Aguiar, Universidade de Brasília (UNB), Instituto de Ciências Biológicas (IB), Departamento de Zoologia - Brasília, DF, Brasil.

Campus Universitário Darcy Ribeiro, Asa Norte, CEP 70910‑900, Brasília, DF, Brasil.

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Published
2019-08-15
How to Cite
Alvarez, L., Silva, W., Lucia, M., & Aguiar, A. (2019). The first cases of gynandromorphism in oil‑collecting bees (Hymenoptera, Apidae: Centridini, Tapinotaspidini). Papéis Avulsos De Zoologia, 59, e20195936. https://doi.org/10.11606/1807-0205/2019.59.36
Section
Original Article