Dark fishing spider
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Pisauridae
Genus: Dolomedes
Species:
D. tenebrosus
Binomial name
Dolomedes tenebrosus
(Hentz, 1844)[1]
Synonyms
  • D. idoneus Montgomery, 1902
  • D. vernalis Emerton, 1909

Dolomedes tenebrosus or dark fishing spider is a fishing spider found in the United States and Canada.[1][2]

It is able to bite humans but will run from people. In most cases, the bite is no more severe than a bee or wasp sting.[3]

Description

Female found under a log pile in Ohio, USA
Dark fishing spider (Dolomedes tenebrosus) eyeset
Eyeset

Female bodies are 15–26 mm; males are 7–13 mm. Legs range from 50 to 90 mm. The spider is a pale to dark brown colour with several chevron markers and lighter stripes around its legs. It is similar to D. scriptus.[2] The legs are banded with brown/black annulations on the femora and reddish-brown/black annulations on the tibia.[3] During copulation, females of the species practise Sexual cannibalism on their male counterparts. Research shows that the males' self-sacrifice through consumption by the female increases the chance of survivorship of future offspring.[4]

Habitat

They are found in wooded areas and dwell on trees.[3]

References

  1. ^ a b "Taxon details Dolomedes tenebrosus Hentz, 1844". World Spider Catalog. Natural History Museum Bern. Retrieved 2017-09-13.
  2. ^ a b Weber, Larry. (2003). Spiders of the North Woods. Duluth, MN:Kollath+Stensaas. pp. 104–105.
  3. ^ a b c "Dolomedes tenebrosus". Penn State College of Agricultural Sciences.
  4. ^ Schwartz, Steven K.; Wagner, William E.; Hebets, Eileen A. (2016). "Males Can Benefit from Sexual Cannibalism Facilitated by Self-Sacrifice". Current Biology. 26 (20): 2794–2799. doi:10.1016/j.cub.2016.08.010. PMID 27720621.

Further reading