Published December 31, 2006 | Version v1
Taxonomic treatment Open

Sciastes extremus Holm 1967

Description

Sciastes extremus Holm 1967

(Figs 31–32)

Material examined.— Canada: Québec: Mont­Albert, La Haute­Gaspésie, Parc de la Gaspésie, Lac Pelletier [48°55’N, 66°02’W] 10.­18.viii.1994, pitfall in Picea bog, elevation: 610 meters, 1ɗ, F. Landry (CPAD).

Diagnosis.— This species resembles S. dubius but differs from the latter by the shape of the embolus tip (E) (Fig. 31), the pointed anterior radical process (ARP) (Fig. 31), and the shape of the palpal tibial apophysis (PTA) (Fig. 32).

Distribution.— Previously known from Greenland (Holm 1967) and from only one North American record in Washington (Crawford 1988). See also Millidge (1984).

Remark.— The Parc de la Gaspésie is known to harbour relict and disjunct populations of spiders with Arctic distributions (see Paquin et al. 2000, Paquin & LeSage 2001). This new record for Canada is an important mention for the enigmatic distribution of this species. We were unable to locate a female for illustration.

Notes

Published as part of Paquin, Pierre & Dupérré, Nadine, 2006, The spiders of Québec: update, additions and corrections, pp. 1-37 in Zootaxa 1133 on page 16, DOI: 10.5281/zenodo.273386

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Linked records

Additional details

Biodiversity

Family
Linyphiidae
Genus
Sciastes
Kingdom
Animalia
Order
Araneae
Phylum
Arthropoda
Scientific name authorship
Holm
Species
extremus
Taxon rank
species
Taxonomic concept label
Sciastes extremus Holm, 1967 sec. Paquin & Dupérré, 2006

References

  • Holm, A. (1967) Spiders (Araneae) from west Greenland. Meddelelser om Gronland, 184 (1), 1 - 99.
  • Crawford, R. L. (1988) An annotated checklist of the Spiders of Washington. Burke Museum Contributions in Anthropology and Natural History, No 5, 48 pp.
  • Millidge, A. F. (1984). The erigonine spiders of North America. Part 7. Miscellaneous genera (Araneae, Linyphiidae). Journal of Arachnology, 12 (2), 121 - 169.
  • Paquin, P., LeSage, L., & Duperre, N. (2000) First Canadian records of Tenuiphantes cracens (Zorsch) and Walckenaeria clavipalpis Millidge (Araneae: Linyphiidae), and thirteen new provincial records and a confirmation for Quebec. Entomological News, 112 (4), 271 - 277.