ZSI Study Decodes Spider-Parasitoid Association Through DNA Metabarcoding

A new study by scientists from Zoological Survey of India (ZSI) has uncovered a hidden dimension in spiders, usually celebrated as formidable predators, revealing that even they have their tiny, unseen adversaries.

- OUR CORRESPONDENT

KOLKATA:

A team from the ZSI led by K Rajmohana and comprising Rupam Debnath, V Sushama and KP Dinesh has achieved a landmark scientific breakthrough by applying DNA metabarcoding to decode spider-parasitoid associations directly from spider egg sacs.

Through DNA metabarcoding, the study recovered spider egg parasitoids such as Idris, Odontacolus and Baeus species. These groups remain generally underexplored due to their minute size — often less than a millimeter — making them extremely difficult to detect unless specifically targeted through detailed rearing or microscopic examination.