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      Trogolaphysa formosensis sp. nov. (Collembola: Paronellidae) from Atlantic Forest, Northeast Region of Brazil

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          Abstract

          Trogolaphysa formosensis sp. nov. (holotype male deposited in DBEZ from Brazil, state of Rio Grande do Norte State, municipality of Bani Formosa), a new springtail from the Atlantic Forest domain, Rio Grande do Norte, Brazil, is described and illustrated. This species is diagnosed by unique coloration pattern, presence of 8+8 eyes, reduced number of setae on metatrochanteral organ, unguiculi truncated and dorsal chaetotaxy. Trogolaphysa formosensis sp. nov. is the first species of the genus from Brazil with all eye lenses. All other Brazilian species present 0+0 or 2+2 eyes. It is also the first species of Trogolaphysa described from the Northeast Region of Brazil.

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          Most cited references 13

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          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

          Chaetotaxy is probably the most important character system used to diagnose species in Entomobryidae, but its use in studies of phylogenetic relationships of suprageneric taxa has been hampered by difficulties in identifying the homology of individual setae. Currently there is developmental information for three (Orchesella, Entomobrya sensu lato and Lepidocyrtus sensu lato) of the four largest groups of entomobryids. Seira is the only major genus for which the postembryonic development of the chaetotaxy has not been described. To fill this gap a complete description of the postembryonic development of the dorsal chaetotaxy of Seira dowlingi (Wray, 1953) is presented. Based on this description and by comparisons with up to 96 additional Seira species, it is suggested that the loss of second abdominal segment primary setae m4 and p4 (by transformation into scales during postembryonic development) is the only chaetotaxic character diagnostic for the genus. The posterior botriothricum (homologous to D3) on the fourth abdominal segment is absent only in S. (Afroseira) rowani Yosii, from South Africa. It is suggested that the presence of seta p3 and absence of p4 on the third abdominal segment support a more recent relationship between Seira and Lepidocyrtus/Pseudosinella than between Seira and Entomobrya sensu lato.
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            The Geography of Flowering Plants

             R. Good,  R. Good,  RA Good (1964)
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              World Map of the Köppen‐Geiger climate classificationupdated

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                zool
                Zoologia (Curitiba)
                Zoologia (Curitiba)
                Sociedade Brasileira de Zoologia (Curitiba )
                1984-4689
                February 2015
                : 32
                : 1
                : 53-58
                Affiliations
                [1 ] Universidade Federal do Rio Grande do Norte Brazil
                [2 ] Universidade Federal do Rio Grande do Norte Brazil
                Article
                S1984-46702015000100053
                10.1590/S1984-46702015000100008
                Product
                Product Information: website
                Categories
                ZOOLOGY

                Animal science & Zoology

                Chaetotaxy, Paronellinae, soil fauna, springtail, taxonomy

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