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New data on Indian nursery-web spiders (Araneae: Pisauridae).

Pradeep M Sankaran1, Anitha Abraham2, Steven H Williams3

  • 1Division of Arachnology; Department of Zoology; Sacred Heart College; Thevara; Cochin; Kerala 682 013; India. pradeepmspala@rediffmail.com.

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Summary

This study updates data on Indian nursery-web spiders, introducing a new species and synonymies. Research clarifies the taxonomy of genera like Dendrolycosa, Euprosthenops, and Hygropoda.

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Area of Science:

  • Arachnology
  • Taxonomy
  • Zoology

Background:

  • Nursery-web spiders (family Pisauridae) in India require updated taxonomic data.
  • Several genera, including Dendrolycosa, Euprosthenops, Hygropoda, Perenethis, and Polyboea, have complex species distributions and taxonomic histories.

Purpose of the Study:

  • To present updated taxonomic data on selected genera of Indian nursery-web spiders.
  • To resolve existing synonymies and discuss potential new ones within these genera.
  • To describe a new species and redescribe existing ones based on new and type material.

Main Methods:

  • Taxonomic revision of spider specimens from India.
  • Designation of lectotypes and neotypes where necessary.
  • Morphological analysis, including illustration of diagnostic features like the vulva.
  • Comparison of type material with freshly collected specimens.

Main Results:

  • A new synonymy is established: Dendrolycosa bobbiliensis is synonymized with D. robusta.
  • The validity of several Dendrolycosa species is discussed, with potential synonymies proposed.
  • Euprosthenops ellioti is redescribed, and the genus vulva is illustrated for the first time.
  • A new species, Hygropoda kannimara sp. nov., is described from Kerala, India.
  • Redescriptions of Perenethis sindica and P. vulpina are provided, with taxonomic uncertainties noted.

Conclusions:

  • The study clarifies the taxonomy of several Indian nursery-web spider genera.
  • New data supports the description of Hygropoda kannimara sp. nov. and resolves taxonomic ambiguities in Dendrolycosa and Perenethis.
  • Further research is needed to confirm proposed synonymies and resolve remaining taxonomic questions.