Tibellus chamberlini

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Current valid name

Tibellus chamberlini Gertsch (family Philodromidae)

Recognition and diagnostic features

Pale spider, very thin elongate abdomen, 6 of its eyes in hexagon with remaining 2 eyes posterior and lateral to hexagon.


Body lengths when mature: male: 7.5 - 8.0 mm, female: 11 mm

Immatures resemble miniature adults.

Egg sac

No egg or egg sac information is available for this species


In California: most of California except northern counties

Elsewhere: Canada

Native to North America

This species has not been transported or become established outside of its range.


Collected March through August.

Status in table grapes

Level of Incidence: extremely uncommon

Level of Concern in New Zealand: WPNZ (May 2010) nr, BORIC (Dec 2011) nr (not listed), MAF-BPRA (2002) nr (coding definition)

Level of Concern in Australia: WPAU (2006) nr (coding definition)

Level of Medical importance: none

Common name

None for species, running crab spiders for family

Taxonomic history


Selected references

Schick, R. X. 1965. The crab spiders of California (Araneida, Thomisidae). Bull. Am. Mus. Nat. Hist. 129: 1-180.