Hibana incursa
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adult female, live |
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adult male, live |
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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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female with egg sac |
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egg sac with scale (cm) |
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spiderlings, dead; dorsal (left), ventral (right) |
Current valid name
Hibana incursa (Chamberlin) (family Anyphaenidae)
Recognition and diagnostic features
Pale with faint stripes on cephalothorax.
Related or similar species
Anyphaena pacifica
Spider
Body lengths when mature: male: 5.5 - 6.1 mm, female: 5.7 - 7.0 mm
Immatures resemble miniature adults.
Egg sac
Description: white silk, retreat sac with female inside guarding eggs, 10.6 ± 6.6 mm wide, 19.9 ± 19.0 mm long
Number of eggs per sac: 73.0 ± 33.9
Size of egg: 0.78 ± 0.065 mm
Distribution
In California: most of California except northern counties
Elsewhere: southern tip of Nevada, southern Arizona, Big Bend area of Texas, Central America
Native to North America
This species has not been transported or become established outside of its range.
Biology
Nocturnal hunting spider. Makes egg sacs in leaves and other surfaces, guards egg sac. Males are collected from late April to early September, females are collected year round. Found in homes, in field, and on citrus.
Status in table grapes
Level of Incidence: 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: large enough to bite but no recorded bites
Common name
None for species, ghost spiders for family
Taxonomic history
Several early synonyms, recently transferred from Aysha to Hibana.
Commonly encountered synonyms
Aysha incursa
Selected references
Platnick, N. I. 1974. The spider family Anyphaenidae in America north of Mexico. Bull. Mus. Comp. Zool. 146: 205-266.
