New Dragonfly Species Lyriothemis keralensis Discovered in Kerala

Researchers have confirmed the discovery of a new species of dragonfly, “Lyriothemis keralensis”, from the low-lying coastal regions of Kerala, marking a significant addition to India’s documented insect biodiversity. Commonly known as the Slender Bombardier, the species was formally described after over a decade of fieldwork and taxonomic study, according to reports by PTI.

Decade-long research leads to formal identification

The study was led by Dr Dattaprasad Sawant, Dr A Vivek Chandran, Renjith Jacob Mathews and Dr Krushnamegh Kunte. Their findings have been published in the “International Journal of Odonatology”. The dragonfly was first observed in 2013 in the Varappetty area of Kothamangalam, Kerala. At the time, it was believed to be “Lyriothemis acigastra”, commonly called the Little Bloodtail, a species known from northeast India.

Misidentification corrected through detailed analysis

Subsequent morphological and behavioural studies revealed consistent differences between the Kerala population and “Lyriothemis acigastra”. These findings prompted researchers to reclassify the specimen as a distinct species. The conclusion was strengthened by comparisons with century-old museum specimens, confirming that the observed traits were stable and taxonomically significant.

Distinct physical and behavioural characteristics

“Lyriothemis keralensis” is distinguished by a slimmer abdomen, unique tail structure, and distinct male genitalia. Adult males display a deep blood-red abdomen with black markings, while females are slightly broader, showing yellow and black colouration. The species measures approximately three centimetres in length and appears primarily during the monsoon season, retreating as water levels decline.

Important Facts for Exams

• “Lyriothemis keralensis” is a dragonfly species endemic to Kerala.
• It belongs to the family Libellulidae under the order Odonata.
• The species was earlier mistaken for “Lyriothemis acigastra”.
• Its formal description was published in the “International Journal of Odonatology”.

Unusual habitat and conservation implications

Unlike many odonate species that prefer forested or protected ecosystems, “Lyriothemis keralensis” thrives in human-modified landscapes. Researchers found it in shaded irrigation canals and seasonal pools within pineapple and rubber plantations. Vivek Chandran emphasised that conservation strategies must extend beyond forests, as many species depend on fragile microhabitats within agricultural land. The dragonfly’s survival, researchers noted, now depends largely on responsible land-use practices and local ecosystem protection.