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Issue: Vol. 2292 No. 1: 18 Nov. 2009
Type: Articles
Published: 2009-11-18
DOI: 10.11646/zootaxa.2292.1.2
Page range: 15–24
Abstract views: 84
PDF downloaded: 2

A synopsis of Actenosigynes Moure, Graf & Urban, 1999 (Hymenoptera: Colletidae)—new species, possible oligolecty and biogeographic comments

Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Cx. Postal 486, 30123-970 Belo Horizonte, MG, Brazil
Hymenoptera Paracolletinae Leioproctus Atlantic Forest Loasaceae Neotropics Pleistocene biogeography taxonomy

Abstract

A second species of Actenosigynes from the Mantiqueira mountain range, in the southeastern Brazilian state of Minas Gerais, is described. This new taxon can be readily distinguished from the type species of the genus, A. fulvoniger (Michener, 1989), by its entirely black-pubescent mesosoma and by the light-yellow pilosity on its terga, among other characters. Females of the two known species are illustrated for the first time and a key is presented for their identification. Analysis of the pollen extracted from the scopa of the holotype of the new species and field observations of A. fulvoniger indicate that both species of Actenosigynes are oligolectic on flowers of Loasaceae as pollen sources. This presumed couple of sister species is the first example of a speciation event related to the isolation of populations of temperate and subtropical bee species on the top of southeastern-Brazilian mountains. It suggests that complexes of sibling species may exist among the other bee species with similar disjunct distribution.

References

  1. Almeida, E.A.B. (2008) Revised species checklist of the Paracolletinae (Hymenoptera, Colletidae) of the Australian Region, with the description of new taxa. Zootaxa, 1891, 1–24.

    Almeida, E.A.B. & Danforth, B.N (2009) Phylogeny of colletid bees (Hymenoptera: Colletidae) inferred from four nuclear genes. Molecular Phylogenetics and Evolution, 50, 290–309.

    Alves-dos-Santos I. (1999a). Distribuição vertical de uma comunidade de abelhas (Hymenoptera, Apoidea) do Rio Grande do Sul. Revista Brasileira de Entomologia, 43, 225–228.

    Alves-dos-Santos I. (1999b) Abelhas e plantas melíferas da mata atlântica, restinga e dunas do litoral norte do estado do Rio Grande do Sul, Brasil. Revista Brasileira de Entomologia, 43, 191–223.

    Blochtein, B. & Harter-Marques, B. (2003) Hymenoptera. In: Fontana, C.S., Bencke, G.A. & Reis, R.E. (Eds), Livro Vermelho da Fauna Ameaçada de Extinção no Rio Grande do Sul. Porto Alegre, EDIPUCRS. pp. 95–109.

    Brown, K.S., Jr. and Ab'Saber, A.N. (1979) Ice-age forest refuges and evolution in the neotropics: correlation of palaeoclimatological, geomorphological and pedological data with modern biological endemism. Paleoclimas, 5, 1–30.

    Castella, P.R. & Britez, R.M. (2004) A Floresta com Araucária no Paraná – Conservação e Diagnóstico dos Remanescentes Florestais. Fundação de Pesquisas Florestais do Paraná, Brasília, 233 pp.

    Gibs, J. (2009) Integrative taxonomy identifies new (and old) species in the Lasioglossum (Dialictus) tegulare (Robertson) species group (Hymenoptera, Halictidae). Zootaxa, 2032, 1–38.

    Melo, G.A.R. & Gonçalves, R.B (2005) Higher-level bee classifications (Hymenoptera, Apoidea, Apidae sensu lato). Revista Brasileira de Entomologia, 22, 153–159.

    Michener, C.D. (1944) Comparative external morphology, phylogeny, and a classification of the bees (Hymenoptera). Bulletin of the American Museum of Natural History, 82, 151–326.

    Michener, C.D. (1989) Classification of American Colletinae (Hymenoptera, Apoidea). The University of Kansas Science Bulletin, 53, 622–703.

    Michener, C.D. (2000) The Bees of the World. Johns Hopkins, Baltimore, 913 pp.

    Michener, C.D. (2007) The Bees of the World. 2nd. Ed. Johns Hopkins, Baltimore, 953 pp.

    Moure, J.S., Graf, V. & Urban, D. (1999) Catálogo de Apoidea da Região Neotropical (Hymenoptera, Colletidae). I. Paracolletini. Revista Brasileira de Zoologia, 16 (suppl.), 1–46.

    Moure, J.S., Graf, V. & Urban, D. (2008) Paracolletini Cockerell, 1934. In: Moure, J.S., Urban, D. & Melo, G.A.R. (Eds), Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region - online version. Available from http://www.moure.cria.org.br/catalogue. (Apr/21/2009).

    Packer, L., Zayed, A., Grixti, J.C., Ruz, L., Owen, R.E., Vivallo, F. & Toro, H. (2005) Conservation genetics of potentially endangered mutualisms: Reduced leves of genetic variation in specialist versus generalist bees. Conservation Biology, 19, 195-202.

    Penter, C., Pedó, E., Fabián, M.E. & Hartz, F.M. (2008) Inventário Rápido da Fauna de Mamíferos do Morro Santana, Porto Alegre, RS. Revista Brasileira de Biociências, 6, 117–125.

    Rizzini, C.T. (1979) Tratado de Fitogeografia do Brasil – Aspectos Sociológicos e Florísticos. Vol. 2. Hucitec/USP, São Paulo, 374 pp.

    Silveira, F.A. & Cure, J.R. (1993) High-altitude bee fauna of Southeastern Brazil: Implications for biogeographic patterns (Hymenoptera: Apoidea). Studies on Neotropical Fauna and Environment, 28, 47–55.

    Silveira, F.A., Melo, G.A.R. & Almeida, E.A.B. (2002) Abelhas Brasileiras – Sistemática e Identificação, author’s edition Belo Horizonte, 253 pp.

    Urban, D. (1995) Espécies novas de Paracolletini e Panurginae do sul do Brasil e Argentina (Hymenoptera, Apoidea). Revista Brasileira de Zoologia, 12, 397–405.

    Wittmann, D. & Schlindwein, C. (1995) Melittophilous plants, their pollen and flower visiting bees in southern Brazil. 1. Loasaceae. Biociências, 3, 19–34.

    Zayed, A., Packer, L., Grixti, J.C., Ruz, L., Owen, R.E. & Toro, H. (2005) Increased genetic differentiation in a specialist versus a generalist bee: Implications for conservation. Conservation Genetics, 6, 1017–1026.