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Issue: Vol. 4350 No. 3: 20 Nov. 2017
Type: Article
Published: 2017-11-20
DOI: 10.11646/zootaxa.4350.3.7
Page range: 549–562
Abstract views: 62
PDF downloaded: 3

A new endemic species of Willowsia from Florida (USA) and descriptive notes on all New World Willowsia (Collembola: Entomobryidae)

Department of Entomology, University of Illinois at Urbana-Champaign, 320 Morrill Hall, 505 S. Goodwin Avenue, Urbana, IL 61801, USA
Collembola Americabrya Entomobryinae chaetotaxy morphology springtail taxonomy Willowsia pyrrhopygia sp. nov.

Abstract

Four species of Willowsia have been reported from the Americas (W. buski, W. jacobsoni, W. mexicana, and W. nigromaculata), and to date, W. mexicana is the only member of the genus endemic to the New World. Here, Willowsia pyrrhopygia sp. nov. from Florida is described. Like W. mexicana, this new species has a native New World distribution and uninterrupted rib scale type, but can be separated by color pattern and chaetotaxy. Dorsal head chaetotaxy and other descriptive notes are provided to compliment to descriptions for W. buski, W. jacobsoni, W. mexicana, and W. nigromaculata. Comparative morphological analysis also reveals two unique character states among Entomobryinae—the outer maxillary lobe with two (not three) sublobal hairs and the absence of labial triangle seta r—shared only by endemic New World Willowsia and Americabrya, providing preliminary support for their independent evolution from a common New World ancestor.

 

References

  1. Börner, C. (1913) Zur Collembolenfauna Javas. Das trochanteralorgan der Entomobryiden. Tijdschrift Voor Entomologie, 56, 44–61.

    Chen, J.-X. & Christiansen, K. (1993) The genus Sinella with special reference to Sinella s.s. (Collembola: Entomobryidae) of China. Oriental Insects, 27 (1), 1–54.
    https://doi.org/10.1080/00305316.1993.10432236

    Christiansen, K. & Bellinger, P. (1980) The Collembola of North America, North of the Rio Grande: A taxonomic analysis. Grinnell College, Grinnell, Iowa, 1321 pp.

    Christiansen, K. & Bellinger, P. (1998) The Collembola of North America, North of the Rio Grande: A taxonomic analysis. Grinnell College, Grinnell, Iowa, 1518 pp.

    Jordana, R. & Baquero, E. (2005) A proposal of characters for taxonomic identification of Entomobrya species (Collembola, Entomobryomorpha), with description of a new species. Abhandlungen und Berichte des Naturkundemuseums Görlitz, 76 (2), 117–134. Available from: http://hdl.handle.net/10171/27529 (Accessed 17 Nov. 2017)

    Katz, A.D., Giordano, R. & Soto-Adames, F. (2015a) Taxonomic review and phylogenetic analysis of fifteen North American Entomobrya (Collembola, Entomobryidae), including four new species. ZooKeys, 525, 1–75.
    https://doi.org/10.3897/zookeys.525.6020

    Katz, A.D., Giordano, R. & Soto-Adames, F.N. (2015b) Operational criteria for cryptic species delimitation when evidence is limited, as exemplified by North American Entomobrya (Collembola: Entomobryidae). Zoological Journal of the Linnean Society, 173 (4), 810–840.
    https://doi.org/10.1111/zoj.12220

    Lubbock, J. (1870) Notes on the Thysanura. Part IV. Transactions of the Linnean Society of London (Zoology), 27 (2), 277–297.
    https://doi.org/10.1111/j.1096-3642.1870.tb00214.x

    Lubbock, J. (1873) Monograph of the Collembola and Thysanura. Ray Society, London, 276 pp.
    https://doi.org/10.5962/bhl.title.11583

    Mari-Mutt, J.A. (1979) A revision of the genus Dicranocentrus Schött (Insecta: Collembola: Entomobryidae). Bulletin of the University of Puerto Rico, 259, 1–79.

    Mari Mutt, J.A. (1981) Redescription of Willowsia jacobsoni (Börner), an Entomobryid with conspicuous sexual dimorphism (lnsecta: Collembola). Journal of Agriculture of the University of Puerto Rico, 65, 361–373.

    Mari Mutt, J.A. & Palacios-Vargas, J.G. (1987) Americabrya, a new genus of Entomobryidae, with a description of A. arida based on Mexican specimens and descriptive notes for A. epiphyta (Loring). Journal of the New York Entomological Society, 95 (1), 99–108. Available from: http://www.jstor.org/stable/25009596 (Accessed 17 Nov. 2017)

    Pan, Z. & Zhang, F. (2016) Contribution to the Willowsia species having body scales of the long basal rib type: four new species and a redescription of W. qui (Collembola: Entomobryidae). European Journal of Taxonomy, 245, 1–25.
    https://doi.org/10.5852/ejt.2016.245

    Schäffer, C. (1896) Die Collembola der Umgebung von Hamgurg und benachbarter Gebiete. Mitteilungen aus dem Naturhistorischen Museum in Hamburg, 13, 149–216.

    Shoebotham, J.W. (1917) XL.— Notes on Collembola .—Part 4. The classification of the Collembola; with a list of Genera known to occur in the British Isles. Journal of Natural History, Series 8, 19 (114), 425–436.
    https://doi.org/10.1080/00222931709486959

    Soto-Adames, F.N. (2008) Postembryonic development of the dorsal chaetotaxy in Seira dowlingi (Collembola, Entomobryidae); with an analysis of the diagnostic and phylogenetic significance of primary chaetotaxy in Seira. Zootaxa, 1683, 1–31.

    Szeptycki, A. (1979) Chaetotaxy of the Entomobryidae and its phylogenetical significance. Morpho-systematic studies on Collembola. Vol. 4. Państwowe Wydawnictwo Naukowe, Warsaw, 218 pp.

    Zhang, F. (2015) Some Willowsia from Nepal and Vietnam (Collembola: Entomobryidae) and description of one new species. Zootaxa, 3905 (4), 489–499.
    https://doi.org/10.11646/zootaxa.3905.4.3

    Zhang, F. & Deharveng, L. (2015) Systematic revision of Entomobryidae (Collembola) by integrating molecular and new morphological evidence. Zoologica Scripta, 44 (3), 298–311.
    https://doi.org/10.1111/zsc.12100

    Zhang, F., Bedos, A. & Deharveng, L. (2014a) Two new species of Willowsia from New Caledonia (Collembola: Entomobryidae). Zootaxa, 3872 (4), 381–386.
    https://doi.org/10.11646/zootaxa.3872.4.5

    Zhang, F., Chen, J.-X. & Deharveng, L. (2011) New insight into the systematics of the Willowsia complex (Collembola: Entomobryidae). Annales de la Société Entomologique de France, 47 (1–2), 1–20.
    https://doi.org/10.1080/00379271.2011.10697692

    Zhang, F., Chen, Z., Dong, R.R., Deharveng, L., Stevens, M.I., Huang, Y.H. & Zhu, C.D. (2014b) Molecular phylogeny reveals independent origins of body scales in Entomobryidae (Hexapoda: Collembola). Molecular Phylogenetics and Evolution, 70, 231–239.
    https://doi.org/10.1016/j.ympev.2013.09.024

    Zhang, F., Palacios-Vargas, J.G. & Chen, J.-X. (2007) The genus Willowsia and its Mexican species (Collembola: Entomobryidae). Annals of the Entomological Society of America, 100 (1), 36–40.
    https://doi.org/10.1603/0013-8746(2007)100[36:TGWAIM]2.0.CO;2

    Zhang, F., Pan, Z., Wu, J., Ding, Y., Yu, D. & Wang, B. (2016) Dental scales could occur in all scaled subfamilies of Entomobryidae (Collembola): new definition of Entomobryinae with description of a new genus and three new species. Invertebrate Systematics, 30 (6), 598–615.
    https://doi.org/10.1071/IS16005

    Zhang, F., Sun, D.-D., Yu, D.-Y. & Wang, B.-X. (2015) Molecular phylogeny supports S-chaetae as a key character better than jumping organs and body scales in classification of Entomobryoidea (Collembola). Scientific Reports, 5, 12471.
    https://doi.org/10.1038/srep12471