“Happy-face” spider discovered in the Indian Himalayas with 32 colour variations and markings that resemble a smiling face

Deep in the high-altitude forests of Uttarakhand, researchers have discovered a striking new spider species named Theridion himalayana, now widely known as the Himalayan happy-face spider. Found at elevations above 2,000 metres in the western Himalayas, the spider has drawn scientific attention for its extraordinary 32 colour morphs, featuring red, black and white markings that resemble smiling faces. The discovery adds to India’s growing biodiversity records and raises fascinating questions about spider evolution, colour polymorphism and Himalayan ecosystems. Scientists from the Forest Research Institute and the Regional Museum of Natural History believe the species may help researchers better understand parallel evolution and adaptation in mountain habitats.This particular newly found spider species has been found by Ashirwad Tripathy and Devi Priyadarshini after conducting ecological surveys in the montane forest areas of Rudraprayag and Chamoli districts in Uttarakhand. More than 60 specimens were collected from different places such as Makku, Tala, and Mandal.It has been found under the Theridiidae family, which is popularly known as cobweb spiders. The remarkable thing about the Theridion himalayana is its colour polymorphism with 32 different colour morphs in the same species of both male and female. These spider specimens have smile-shaped patterns on their abdomens created through the combination of white, red and black dots.Devi Priyadarshini, in her statement that is part of the study 'On the discovery of a new polymorphic Happy-Face Spider (Araneae, Theridiidae) from the Western Himalayas, India, with notes on its natural history,' clarified why they conducted ecological research to find spiders in the Himalayan area. This is due to the fact that the ecology in the Himalayas differs significantly from the plain areas and therefore can give rise to many interesting evolutionary traits.It is well-known that the celebrated happy face spider has been seen only in the Hawaiian Islands as Theridion grallator. Yet DNA studies show that the Indian species has an 8.5 per cent difference in its genetic makeup, indicating that it independently evolved in Asia, and did not come from its Hawaiian counterpart directly.According to researchers, the findings have the potential to change science's view on parallel evolution, in which two or more species independently evolve similar traits. Also, it shows how isolated mountain ecosystems can give rise to distinct adaptations in organisms over time.The spiders were often found on the Hedychium genus of ginger plants, just like their Hawaiian cousins. Scientists are investigating whether there is an ecological or evolutionary link between the two types of spiders through their similarities.In addition to their remarkable physical appearance, the research paper in Evolutionary Systematics mentions special reproductive structures that differentiate Theridion himalayana from those found in Europe and North America.Theridion himalayana is a case in point, showing the vast number of species whose existence is yet to be confirmed in the Indian subcontinent, particularly in the distant Himalayan environments. There are almost 2,000 confirmed spider species found in India, but there are believed to be many more unidentified ones residing in the country’s hilly and wooded areas.In addition to its unique features, this particular spider contributes to the ecosystem through predation on other smaller species of insects and flies.The scientist noted that other surveys can help find even more colour variants of the species. Ashirwad Tripathy commented that further surveys might show “more variations in the species.”The ongoing climate change, coupled with deforestation, poses significant risks to the biodiversity of mountainous regions, which is why discoveries of new species like Theridion himalayana emphasise the significance of preserving the diversity of Himalayan fauna before their extinction.