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Issue: Vol. 4084 No. 2: 25 Feb. 2016
Type: Article
Published: 2016-02-25
DOI: 10.11646/zootaxa.4084.2.7
Page range: 277–284
Abstract views: 56
PDF downloaded: 5

The description of a new calyptrate fly mimicking species of the fungus weevil genus Gymnognathus Schönherr 1826 from the southern Bolivian Andes (Coleoptera: Anthribidae: Anthribinae)

Colección Boliviana de Fauna, Casilla 10077, Correo Central, La Paz, Bolivia.
Colección Boliviana de Fauna, Casilla 10077, Correo Central, La Paz, Bolivia. Instituto de Ecología, Universidad Mayor de San Andrés, Casilla 10077, Correo Central, La Paz, Bolivia
Coleoptera Bolivia fungus weevil Gymnognathus barclayi mimicry South America Tucuman-Bolivian forest

Abstract

A new calyptrate fly mimicking species of Gymnognathus Schönherr 1826 from the humid Tucuman-Bolivian forest in the southern Bolivian Andes is described. Gymnognathus barclayi sp. nov. is distinguished from the closest related species G. bohlsi Jordan, 1895, by the color and/or distribution of the scales on the pronotum, fourth ventrite and pygidium, the wider pronotum and the development of the spines on the pygidium. The arrangement of the longitudinal stripes on the pronotum suggests that G. barclayi sp. nov. is a mimic of tachinid or muscid flies. The almost exclusive occurrence of Gymnognathus species in tropical moist forests indicates that the presence of G. barclayi sp. nov. in the subtropical realm is fostered by increased humidity at orographic rain barriers. G. barclayi sp. nov. is possibly endemic to the Tucuman-Bolivian forest. Along with the presence of other endemic species, the discovery of G. barclayi sp. nov. highlights the importance of the Tucuman-Bolivian forest as an endemism hotspot for insects and calls for a re-assessment of the conservation status of this spatially restricted and threatened ecoregion.

 

References

  1. Bookhagen, B. & Strecker, M.R. (2008) Orographic barriers, high-resolution TRMM rainfall, and relief variations along the eastern Andes. Geophysical Research Letters, 35, 1–6.
    http://dx.doi.org/10.1029/2007GL032011

    Frieser, R. (1959) Einige neue Anthribiden (Col.). Annalen des naturhistorischen Museums in Wien, 63, 416–421.

    Frieser, R. (1981) Neue tropische Anthribiden (Coleoptera, Anthribidae). Annales Historico-Naturales Musei Nationalis Hungarici, 73, 207–216.

    Hespenheide, H.A. (1973) A novel mimicry complex: beetles and flies. Journal of Entomology (A), 48, 49–56.
    http://dx.doi.org/10.1111/j.1365-3032.1973.tb00034.x

    Holloway, B.A. (1982) Anthribidae (Insecta: Coleoptera). Fauna of New Zealand, 3, 272 pp.

    Ibisch, P.L. & Mérida, G. (2003) Biodiversidad: La riqueza de Bolivia. Estado de conocimiento y conservación. Ministerio de Desarrollo Sostenible. Editorial Fundación Amigos de la Naturaleza (FAN), Santa Cruz, 638 pp.

    Jordan, K. (1937) Anthribidae from South and Central America. Novitates Zoologicae, 40, 208–261.

    Navarro, G. & Ferreira, W. (2011) Mapa de Sistemas Ecológicos de Bolivia, escala 1:250 000. Edición CD-ROM. RUMBOL SRL-TheNatureConservancy (TNC), Bolivia.

    O’Hara, J.E. (2008) Tachinid flies (Diptera: Tachinidae). In: Encyclopedia of Entomology, 2nd Edition (Capinera, J.L.), Springer, Netherlands, Dordrecht, 3675–3686.

    Perger, R. & Guerra, F. (2012) Two new tiger beetle (Coleoptera, Carabidae, Cicindelitae) species from the Tucuman-Bolivian forest in the National Tariquía Reserve, Bolivia. Zootaxa, 3434, 49–58.

    Perger, R. & Guerra, F. (2013) Longhorn beetles (Coleoptera: Cerambycidae) of the Tucuman-Bolivian forest in the Tariquía Flora and Fauna National Reserve, southern Bolivian Andes, with notes on ecoregion endemism and conservation. The Pan-Pacific Entomologist, 89 (4), 209–221.
    http://dx.doi.org/10.3956/2013-19.1

    Perger, R. & Grossi, P. (2013) Revision of the rhinoceros beetle genus Oryctophileurus Kolbe with description of a new species, the male of O. varicosus Prell, and notes on biogeography (Scarabaeoidea, Dynastinae, Phileurini). ZooKeys, 346, 1–16.
    http://dx.doi.org/10.3897/zookeys.346.6114

    Perger, R., Grossi, P.C. & Guerra, F. (in press) Description of a new species of the stag beetle genus Auxicerus Waterhouse, 1883 (Coleoptera: Scarabaeoidea: Lucanidae). Zootaxa.

    Rheinheimer, J. (2004) Illustrierter Katalog und Bibliographie der Anthribidae der Welt (Insecta: Coleoptera). Mitteilungen des Entomologischen Vereins Stuttgart, 39 (1–2), 1–243.

    Ruxton, G.D., Speed M. & Sherratt, T.N. (2004) Evasive mimicry: when (if ever) could mimicry based on difficulty of capture evolve? Proceedings of the Royal Society of London. Series B. Biological Sciences, 271, 2135–2142.
    http://dx.doi.org/10.1098/rspb.2004.2816

    Vanin, S.A. & Guerra, T.J. (2012) A remarkable new species of flesh-fly mimicking weevil (Coleoptera: Curculionidae: Conoderinae) from Southeastern Brazil. Zootaxa, 3413, 55–63.

    Valentine, B.D. (1960) The genera of the weevil family Anthribidae north of Mexico. Transactions of the American Entomological Society, 86, 41–85.

    Valentine, B.D. (1980) The species of the Anthribid weevil genus Stenocerus Schoenherr. Coleopterists Bulletin, 34 (3), 287–294.

    Valentine, B.D. (1998) A review of Nearctic and some related Anthribidae (Coleoptera). Insecta Mundi, 12, 251–296.

    Wolfrum, P. (1955) Neue Anthribiden aus dem Museum G. Frey. Entomologische Arbeiten aus dem Museum Frey, 6, 674–683.