Abstract
A new species of Melanoplinae (Orthoptera: Acrididae) is described from Central Mexico: Pedies andreae sp. nov. Fontana, Mariño-Pérez, & Woller and is added to the 12 existing species. Taxonomic placement of this species is justified based on distinct morphology and comparisons with congeneric species are provided. Additionally, species in this genus are associated with higher elevations (1,700 to 3,700 masl) that possess larger fluctuations in temperatures. We observed that females of P. andreae sp. nov. exhibit blue coloration on their abdomens and we discuss the possible reasons for this peculiar pigmentation. Interestingly, we did not observe this coloration in males. Finally, images are provided for three live previously described species of Pedies.
References
Brunner von Wattenwyl, C. (1861) Orthopterologische Studien. I. Beiträge zu Darwin's Theorie über die Entstehung der Arten. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien, 11, 221–228.
Buzzetti, F.M., Barrientos Lozano, L. & Fontana, P. (2010) New Melanoplinae from Mexico. Bollettino della Società entomologica italiana, 142 (3), 99–110.
Carbonell, C.S. (2000) Taxonomy and a study of the phallic complex, including its muscles, of Paulinia acuminata (Acrididae, Pauliniinae) and Marellia remipes (Acrididae, incertae sedis). Journal of Orthoptera Research, 9, 161–180.
https://doi.org/10.2307/3503647Carbonell, C.S., Mesa, A. & Condutta, V.L. (1980) Systematics and Karyotype of the Grasshopper Genera Omalotettix and Abracris. Proceedings of the Academy of Natural Sciences of Philadelphia, 132, 279–284.
Cigliano, M.M & Amédégnato, C. (2010) The high-Andean Jivarus Giglio-Tos (Orthoptera, Acridoidea, Melanoplinae): systematics, pjylogenetic and biogeographic considerations. Systematic Entomology, 35, 692–721.
https://doi.org/10.1111/j.1365-3113.2010.00538.xCigliano, M.M., Braun, H., Eades, D.C. & Otte, D. (2018) Orthoptera Species File. Version 5.0/5.0. Available from: http://Orthoptera.SpeciesFile.org (accesed 13 February 2018)
Cigliano, M.M. & Otte, D. (2003) Revision of the genus Pedies Saussure (Orthoptera: Acridoidea: Melanoplinae). Transactions of the American Entomological Society, 129 (1), 111–132.
Fontana, P. & Buzzetti, F.M. (2007) New or little known Mexican Melanoplinae (Orthoptera Acridinae). Atti della Accademia Roveretana degli Agiati, 87 (B), 73–130.
Fontana P., Buzzetti F. M. & Mariño-Pérez R. (2008) Chapulines, Langostas, Grillos y Esperanzas de México. Guía fotográfica. Grasshoppers, Locusts, Crickets and katydids of Mexico. Photographic guide. Vol. 1. WBA Handbooks, Verona, 272 pp.
Google Maps (2018) Mexico. Available from: https://www.google.com/maps/@23.6545012,-100.7635121,2269101m/data=!3m1!1e3 (accessed 6 August 2018)
Gurney, A.B. & Buxton, G.M. (1968) Grasshoppers of the genus Karokia and of the saltator, immunis, and harperi species groups of the genus Melanoplus in California and Oregon (Orthoptera: Acrididae). Occasional Papers of the Bureau of Entomology, California Department of Agriculture, 13, 1–56.
Hebard, M. (1932) New species and records of Mexican Orthoptera. Transactions of the American Entomological Society, 58, 201–371.
Hubbell, T.H. (1932) A revision of the Puer group of the North American genus Melanoplus, with remarks on the taxonomic value of the concealed male genitalia on the Cyrtacanthacrineae (Orthoptera, Acrididae). Miscellaneous Publications Museum of Zoology University of Michigan, 23, 1–64.
Kirby, W.F. (1910) A Synonymic Catalogue of Orthoptera (Orthoptera Saltatoria, Locustidae vel Acridiidae). 3 (2). British Museum (Natural History), London, 674 pp.
Knowles, L.L. & Massatti, R. (2017) Distributional shifts – not geographic isolation – as a probable driver of montane species divergence. Ecography, 40, 1475–1485.
https://doi.org/10.1111/ecog.02893Mastretta-Yanes, A., Moreno-Letelier, A., Piñero, D., Jorgensen, T.H. & Emerson, B.C. (2015) Biodiversity in the Mexican highlands and the interaction of geology, geography and climate within the Trans-Mexican Volcanic Belt. Journal of Biogeography, 42, 1586–1600.
https://doi.org/10.1111/jbi.12546Morrone, J.J. (2017) Neotropical Biogeography: Regionalization and Evolution. CRC Press, Boca Raton, 282 pp.
Otte, D. (2007) Mexitettix and Mexacris, two new genera of grasshoppers from eastern Mexico (Acrididae: Melanoplinae). Proceedings of the Academy of Natural Sciences of Philadelphia, 156, 305–340.
https://doi.org/10.1635/0097-3157(2007)156[305:MAMTNG]2.0.CO;2Pocco, M.E., Posadas, P., Lange, C.E. & Cigliano, M.M. (2013) Patterns of diversification in the high Andean Ponderacris grasshoppers (Orthoptera: Acrididae: Melanoplinae). Systematic Entomology, 38, 365–389.
https://doi.org/10.1111/syen.12001Ronderos, R.A. & Carbonell, C.S. (1994) Sobre el género mexicano Pedies Saussure, y las especies sudamericanas atribuidas al mismo (Orthoptera: Acrididae, Melanoplinae). Revista de la Sociedad Entomológica Argentina, 53 (1–4), 83–99.
Saussure, H. (1861) Orthoptera nova americana (Diagnoses praeliminares). II. Revue et Magasin de Zoologie Pure et Appliquée, 2 (13), 126–130, 156–164, 313–324, 397–402.
Scattolini, M.C., Confalonieri, V., Lira-Noriega, A., Pietrokovsky & Cigliano, M.M. (2018) Diversification mechanism in the Andean grasshopper genus Orotettix (Orthoptera: Acrididae): ecological niches and evolutionary history. Biological Journal of the Linnean Society, 123, 697–711.
https://doi.org/10.1093/biolinnean/bly008Umbers, K.D.L. (2011) Turn the temperature to turquoise: Cues for colour change in the male chameleon grasshopper (Kosciuscola tristis) (Orthoptera: Acrididae). Journal of Insect Physiology, 57, 1198–1204.
https://doi.org/10.1016/j.jinsphys.2011.05.010Umbers, K.D.L. (2013) On the perception, production and function of blue colouration in animals. Journal of Zoology, 289, 229–242.
https://doi.org/10.1111/jzo.12001Umbers, K.D.L., Tatarnic, N.J., Holwell, G.I. & Herberstein, M.E. (2013a) Bright turquoise as an intraspecific signal in the chameleon grasshopper (Kosciuscola tristis). Behavioral ecology and sociobiology, 67 (3), 439–447.
https://doi.org/10.1007/s00265-012-1464-7Umbers, K.D.L., Herberstein, M.E. & Madin, J.S. (2013b) Colour in insect thermoregulation: empirical and theoretical tests in the colour-changing grasshopper, Kosciuscola tristis. Journal of insect physiology, 59 (1), 81–90.
https://doi.org/10.1016/j.jinsphys.2012.10.016Umbers, K.D.L., Fabricant, S.A., Gawryszewski, F.M., Seago, A.E. & Herberstein, M.E. (2014) Reversible colour change in Arthropoda. Biological Reviews, 89, 820–848.
https://doi.org/10.1111/brv.12079Woller, D.A. & Song, H. (2017) Investigating the functional morphology of genitalia during copulation in the grasshopper Melanoplus rotundipennis (Scudder, 1878) via correlative microscopy. Journal of Morphology, 278 (3), 334–359.
https://doi.org/10.1002/jmor.20642