Abstract

Diplura is a group of entognathous hexapods, often considered a sister group to insects. They play an important role in recycling organic matter in soil and subterranean terrestrial ecosystems. The Campodeidae is the most diverse family, divided into four subfamilies. The subfamily Plusiocampinae has a subterranean life-style with many species distributed in the Euro-Mediterranean area. The incertae sedis tachycampoids (“lignée Tachycampoïde”) is a group within the family Campodeidae that share with the Plusiocampinae a strong preference for subterranean habitats and several morphological characters, such as slender body shape, elongated appendages, considerable increment in the number of antennomeres and cercal articles, and complexity of sensorial structures. The present monograph provides a taxonomic revision of the subfamily Plusiocampinae and the genera belonging to the tachycampoid lineage from Europe and the Mediterranean region. It comprises detailed morphological descriptions and illustrations together with data on the habitats and distributions of 87 species, 10 subspecies and 11 affinis forms. Seven new species are described among those, namely: Plusiocampa (Plusiocampa) apollo Sendra, Giachino & Vailati sp. nov., P. (P.) chiosensis Sendra & Gasparo sp. nov., P. (P.) dublanskii Sendra & Turbanov sp. nov., P. (P.) hoffmanni Sendra & Paragamian sp. nov., P. (P.) rhea Sendra sp. nov., P. (P.) ternovensis Sendra & Borko sp. nov. and P. (Venetocampa) ferrani Sendra & Delić sp. nov.

Highlights

  • Diplura is a group of eyeless entognathous hexapods, often considered a sister group to insects, which colonize terrestrial habitats, presenting a tracheal system, rudimentary Malpighian tubules and sperm transfer via a spermatophore (Beutel et al 2017; Denis 1949)

  • Phylogenetic groupings and distribution The systematic groups are here maintained as those previously suggested for Campodeidae (Silvestri 1912; Condé 1955a; Paclt 1957; Bareth & Condé 1981, 1984; Condé & Bareth 1996; Sendra et al 2016, 2017a, 2018; Sendra & Weber 2018)

  • A phylogenetic grouping seems natural for the five subfamilies of Campodeidae (Paclt 1957) plus the tachycampoid phyletic lineage proposed by Bareth & Condé (1981)

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Summary

Introduction

Diplura is a group of eyeless entognathous hexapods, often considered a sister group to insects, which colonize terrestrial habitats, presenting a tracheal system, rudimentary Malpighian tubules and sperm transfer via a spermatophore (Beutel et al 2017; Denis 1949). About 1000 extant dipluran species are named and described in 10 dipluran families Half of this diversity belongs to the Campodeidae (Condé 1955a; Pagés 1959; Sendra 2015). The subfamily Plusiocampinae is the most diverse in subterranean habitats, with over 50 species described from the Euro-Mediterranean region. 10 species of Plusiocampinae, belonging to five genera, are found beyond the Euro-Mediterranean region (Holarctic realm) and throughout the Indomalayan and possibly the Afrotropical realms (Condé 1955a; Paclt 1957; Sendra et al 2016, 2017a)

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