Tibellus chamberlini
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adult female, live |
|
adult male, live |
|
female genitalia; epigynum |
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male genitalia; palp, lateral view |
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male genitalia; palp, ventral view |
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grape size comparison with adult spiders; male (left), female (right) |
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diagnostic feature; thin, elongate abdomen |
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.
Spider
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
Distribution
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.
Biology
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
Stable
Selected references
Schick, R. X. 1965. The crab spiders of California (Araneida, Thomisidae). Bull. Am. Mus. Nat. Hist. 129: 1-180.
