Ant-like Crab Spider, Amyciaea forticeps

posted in: Ant-like crab spider, Arthropod, mimicry | 0
Amyciaea forticeps is a spider that mimics weaver ants (Oecophylla sp) .  The spider holds the first pair of legs in the air to make them look like the weaver ant antennae. Two black spots on the spider abdomen mimic the compound eyes of ants. These spiders stay a distance from the social ants by hanging from silken threads and bite ants on the head before feeding on the paralysed preys. It is easy to mistake the spider for an ant. Soh Kam Yung’s sharp observation netted him these three beautiful photographs of a crab spider feeding on a weaver ant prey.
Photo 1: Amyciaea forticeps spider on left, weaver ant prey on right of picture. Spider holds up first pair of front legs to imitate weaver ant antennae. Soh Kam Yung. Sungei Buloh Wetland Reserve, Singapore. 3 July 2022.
Photo 2: Dorsal view of Amyciaea forticeps with a shrivelled weaver ant prey (Oecophylla). Soh Kam Yung. Sungei Buloh Wetland Reserve, Singapore. 3 July 2022.
Photo 3: Weaver ant prey has been sucked quite dry by the the spider on the left. Soh Kam Yung. Sungei Buloh Wetlands Reserve. 3 July 2022.

 

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