A review of the genus Traegaardhia (Acari, Prostigmata, Rhagidiidae) with descriptions of new species and a key to species

Miloslav Zacharda, Daniel Fong, Horton H. Hobbs, Erminio Piva, Michael E. Slay, Steven Joseph Taylor

Research output: Contribution to journalArticle

Abstract

A new supplemented concept of the genus Traegaardhia Zacharda, 1980 (Acari: Rhagidiidae) is presented and descriptions of seven new species of the genus are given. These are Traegaardhia cavernarum n. sp., T. cavernicola n. sp., T. distosolenidia n. sp., T. gracilis n. sp., T. nasuta n. sp., T. subterranea n. sp., from caves located in northeastern Prealps, Italy, and T. similis n. sp. from the Ozark Plateaus, southeastern USA. The neotype of Foveacheles holsingeri Zacharda, 1980 is assigned, the species is redescribed and together with Foveacheles paralleloseta Zacharda, 1985, transferred into the genus Traegaardhia. Foveacheles thaleri n. sp. is described as the possible epigean ancestor of the derivative troglobiotic T. subterranea and the adaptive shift hypothesis and parapatric speciation of T. subterranea is outlined. A key to adults of the known eleven species of the genus Traegaardhia is presented. The biogeography, morphological adaptations to life in caves (troglomorphisms), vicariance and distribution of the presented taxa are briefly discussed. All new taxa are authored by M. Zacharda only. copyright

Original languageEnglish (US)
Pages (from-to)1-64
Number of pages64
JournalZootaxa
Issue number2474
StatePublished - May 14 2010

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Keywords

  • Caves
  • Italy
  • Rhagidiidae
  • Traegaardhia
  • USA

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

Zacharda, M., Fong, D., Hobbs, H. H., Piva, E., Slay, M. E., & Taylor, S. J. (2010). A review of the genus Traegaardhia (Acari, Prostigmata, Rhagidiidae) with descriptions of new species and a key to species. Zootaxa, (2474), 1-64.