Ghost Spiders

Anyphaenidae

Classification

Pronunciation

How to pronounce Anyphaenidae: //æ.nɪˈfiː.nɪˌdeɪ//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Lupettiana mordax by Cole Shoemaker. Used under a CC BY 4.0 license.
Wulfila saltabundus - Guelph, Ontario 2017-06-22 by Ryan Hodnett. Used under a CC BY-SA 4.0 license.
Common Spiders U.S. 042-3 by James Henry Emerton (1847 – 1931). Used under a Public domain license.
Hibana velox by Patrick Edwin Moran. Used under a CC BY-SA 3.0 license.
Hibana gracilis f by Gergin Blagoev. Used under a CC0 license.
Anyphaena pacifica by CBG Photography Group, Centre for Biodiversity Genomics. Used under a CC0 license.

Summary

Anyphaenidae, known as ghost spiders, is a family of araneomorph spiders with various species that are important predators in several ecosystems, especially agricultural environments. They exhibit unique anatomical features that distinguish them from similar families.

Physical Characteristics

Size: 3.0-8.5 mm. Distinguished by two rows of club-shaped hairs on the bottoms of their feet, and abdominal spiracle situated one third to one half of the way anterior to the spinnerets.

Identification Tips

Similar in appearance to sac spiders but can be identified by the presence of specific hairs on their feet and the unique placement of their spiracles.

Habitat

Build silken retreats or sacs usually on plant terminals, between leaves, under bark, or under rocks.

Distribution

Widespread worldwide; common genera include Anyphaena (absent in tropical Africa and Asia) and Hibana (found in the New World).

Diet

Wandering predators that primarily feed on insect eggs.

Ecosystem Role

Important predators in agricultural systems, especially tree crops.

Economic Impact

Species in the Hibana genus are important predators in agricultural systems, aiding in pest control by feeding on insect eggs.

Misconceptions

Often confused with sac spiders due to similarities in appearance and behavior.

Tags

  • Spider
  • Arachnid
  • Anyphaenidae
  • Ghost Spider
  • Agricultural Predator