Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Running Crab Spiders (Philodromidae) » Philodromus » Philodromus rufus

Species Philodromus rufus

Philodromus rufus? - Philodromus rufus - female

running crab spider, photo #3275 - Philodromus rufus

running crab spider, photo #3297 - Philodromus rufus

running crab spider - Philodromus rufus - female

Spider #28 voucher image - Philodromus rufus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Chelicerata (Chelicerates)

Class Arachnida (Arachnids)

Order Araneae (Spiders)

Infraorder Araneomorphae (True Spiders)

No Taxon (Entelegynae)

Family Philodromidae (Running Crab Spiders)

Genus Philodromus

Species rufus (Philodromus rufus)

Numbers

5 ssp.

Philodromus rufus jenningsi

Philodromus rufus pacificus

Philodromus rufus quartus

Philodromus rufus rufus

Philodromus rufus vibrans

Size

Female: Length 2.7-4.5(1)

Male: Length 2.5-3.5(1)

Habitat

Forest and forest edges.

Season

Adults: May-August

Remarks

Males have at least two courtship strategies: (Dondale, 1964)

Strategy 1 - Approach female and vibrate legs I and II rapidly. (Now Philodromus rufus vibrans)

Strategy 2 - Approach female and slowly tap legs.

Each female observed seemed to have a preference in male based on the strategy used.

See Also

P. rodecki vs. P. rufus - The Moldenke et al. Forest Service key to arboreal spiders (PDF) says: "Keying out with P. rufus is the infrequent P. rodecki, found at the western edge of the Great Basin; the abdominal dorsum of P. rodecki is covered with patches of orange pubescence interspersed with dark, round punctations"

Print References

Dondale, C. D. (1964). Sexual behavior and its application to a species problem in the spider genus Philodromus (Araneae: Thomisidae). Canadian Journal of Zoology 42: 817-827.

Internet References

World Spider Catalog

iNaturalist

GBIF

ITIS

Works Cited

1.	Spiders Of Connecticut Benjamin Julian Kaston. 1981. State Geological And Natural History Survey Of Connecticut, Department Of Environmental Protection, Bulletin 70 Revised Edition.

Contributed by Lynette Elliott on 4 September, 2007 - 11:19pm
Additional contributions by cheins, Nathaniel Green
Last updated 21 March, 2022 - 10:32am

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by: