Mimetus spinatus and Mimetus parvulus

Aug. 28, 2024

The Zoological Survey of India (ZSI) recently discovered two new species of spiders named Mimetus spinatus and Mimetus parvulus from the southern Western Ghats.

About Mimetus spinatus and Mimetus parvulus:

  • They are two new species of spiders discovered in the southern Western Ghats, a biodiversity hotspot.
  • Mimetus spinatus and Mimetus parvulus were collected from the Mookambika Wildlife Sanctuary, Karnataka and Ernakulam district of Kerala, respectively.
  • Features:
    • Both species belong to the spider family Mimetidae, commonly known as pirate or cannibal spiders due to their unique predatory behaviour.
    • These spiders infiltrate the webs of other spiders, mimicking the vibrations of prey or mates to deceive and kill the host spider.
    • Mimetus spinatus is characterised by its medium size, pale yellow head, and dull grey-white abdomen, with scattered light green mottling. It possesses long, black, flattened spine-like hairs on the dorsal head, which inspired its name.
    • In contrast, Mimetus parvulus is distinguished by its pale creamy-rose head with dense grey-black mottling and a triangular-shaped, dull grey-white abdomen.
  • The discovery marks the report of the genus Mimetus after 118 years of the discovery of the last Mimetus species (i.e. Mimetus indicus) from India.
  • The addition of two new species brings the number of Mimetus species in India to three, all of which were spotted from the southern part of the country.