Skip to main content Skip to main navigation menu Skip to site footer
Type: Articles
Published: 2009-11-09
Page range: 48–62
Abstract views: 66
PDF downloaded: 2

Cladistic analysis of Megachile (Chrysosarus) Mitchell and revalidation of Megachile (Dactylomegachile) Mitchell (Hymenoptera, Megachilidae)

División Entomología, Museo de La Plata, Paseo del Bosque s/n, B1900dng La Plata, Argentina
División Entomología, Museo de La Plata, Paseo del Bosque s/n, B1900dng La Plata, Argentina
Hymenoptera Leaf-cutter bees Megachilinae cladistic analysis Neotropical

Abstract

Megachile is the largest genus of the family Megachilidae, being widely distributed throughout temperate and tropical areas of the world. The validity of M. (Chrysosarus) and M. (Dactylomegachile) was investigated based on a cladistic analysis of 63 characters of adult morphology of 14 taxa. The single most parsimonious tree (181 steps, CI=0.60; RI=0.63) resulting from an implied weighting analysis recovered M. (Chrysosarus) and M. (Dactylomegachile) as monophyletic groups. Both subgenera are redescribed and the value of the most frequently used characters in the taxonomy of Megachile is discussed.

References

  1. Claude-Joseph, F. (1926) Recherches biologiques sur les Hyménoptères du Chile (Melliferes). Annales des Sciences Naurelles, Zoologie, 9 (10), 114–268.

    Farris, J.S. (1989) The retention index and the rescaled consistency index. Cladistics, 5, 417–419.

    Felsenstein, J. (1985) Confidence limits on phylogenies: an approach using the bootstrap. Evolution, 39, 783–791.

    Fischer, R.L. (1956) The muscular mechanism of the male metasoma and genitalia of Megachile fortis Cresson (Hymenoptera, Megachilidae). The Canadian Entomologist, 88, 657–673.

    Goloboff, P.A., Farris, J.S. & Nixon, K.C. (2003) T.N.T.: Tree Analysis using new technology. Program and documentation, available from the authors and at www.zmuc.dk/public/phylogeny.

    González, V. (2008) Phylogeny and Classification of the Bee Tribe Megachilini (Hymenoptera, Apoidea, Megachilidae), with Emphasis on the Genus Megachile. Unpublished Doctoral Thesis, University of Kansas, 274 pp.

    Kluge, A.G. & Farris, J.S. (1969) Quantitative phyletics and the evolution of anurans. Systematic Zoology, 18, 1–32.

    Lanyon, S. (1985) Detecting internal inconsistencies in distance data. Systematic Zoology, 34, 397–403.

    Latreille, P.A. (1802) Histoire naturelle de fourmis. xvi., Crapelet, Paris, 445 pp.

    Laroca, S. (1971) Notas sobre a nidificação de Chrysosarus tapytensis Mitchell (Hymenoptera, Apoidea). Boletim da Universidade Federal do Paraná, Zoologia, 4, 39–44.

    Laroca, S. (1992) Biologia de Dactylomegachile affabilis (Hymenoptera, Apoidea): I Descrição do ninho. Acta Biologica Paranaense, 21, 23–29.

    Lopes de Carvalho, F. & Raw, A. (2005) Avaliação de sinonimia entre os subgêneros Chrysosarus e Dactylomegachile (Megachile Latreille, 1802) (Hymenoptera: Megachilidae). Anais 11º Seminário de Iniciação Científica da UES-Ciencias Biológicas, 194–195.

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

    Michener, C.D. (2000) The Bees of the World. Johns Hopkins University Press, Baltimore, 912 pp.

    Michener, C.D. (2007) The Bees of the World; second edition. Johns Hopkins University Press, Baltimore, 992pp.

    Mitchell, T.B. (1934) A revision of the genus Megachile in the Nearctic Region, Part. I. Transactions of the American Entomological Society, 59, 295–361.

    Mitchell, T.B. (1935a) A revision of the bees of the genus Megachile of the Nearctic region, Part II–III. Transactions of the American Entomological Society, 61, 1–205.

    Mitchell, T.B. (1936) A revision of the bees of the genus Megachile of the Nearctic region, Part IV. Transactions of the American Entomological Society, 62, 117–166.

    Mitchell, T.B. (1937a) A revision of the bees of the genus Megachile of the Nearctic region, Part V. Transactions of the American Entomological Society, 62, 323–382.

    Mitchell, T.B. (1937b) A revision of the bees of the genus Megachile of the Nearctic region, Part VI–VIII. Transactions of the American Entomological Society, 63, 45–421.

    Mitchell, T.B. (1943) On the classification of neotropical Megachile (Hymenoptera: Megachilidae). Annals of the Entomological Society of America, 36, 656–671.

    Mitchell, T. B. (1980) A generic revision of the megachiline bees of the Western Hemisphere. North Carolina State University, Raleigh, 95 pp.

    Moure, J.S., Melo, G.A.R., & DalMolin, A. (2007) Megachilini. In: Moure, J.S., Urban, D., & Melo, G.A.R (Eds). Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region. Sociedade Brasileira de Entomologia. Curitiba, Brazil, pp. 917–1001.

    Raw, A. (2002) New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae). Zootaxa, 71, 1–43.

    Raw, A. (2007) An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa, 1601, 1–127.

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

    Zillikens, A. & Steiner, J. (2004) Nest architecture, life cycle and cleptoparasite of the Neotropical leaf-cutting bee Megachile (Chrysosarus) pseudanthidioides Moure (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society, 77, 193–202.