GS3 – Environment
Context:
A new species of dragonfly, Lyriothemis abrahami, has been discovered in the Western Ghats region of Kerala.
About the Genus:
Lyriothemis is a genus of dragonflies native to forest ecosystems in eastern Asia. These species are notable for their dependence on tree canopy habitats and unique phytotelma-based breeding—utilising water-filled tree cavities for reproduction.
Details of Lyriothemis abrahami:
- Morphology: Exhibits prominent black and yellow coloration, with pronounced sexual dimorphism.
- Endemism: Restricted to the southern Western Ghats, particularly in forests at low to mid-elevation levels.
- Habitat Preference: Inhabits moist deciduous and semi-evergreen forest types, especially shaded zones.
- Reproduction: Utilises phytotelmata—water pockets in mature tree hollows—for breeding.
- Ecological Role: Functions as a top-level insect predator and serves as a biological indicator for freshwater health.
- Conservation Concerns: Faces threats from forest fragmentation, canopy loss, and degradation of its specific microhabitats.
- Taxonomic Clarification: Previously misclassified as Lyriothemis flava due to superficial resemblances, it has now been formally recognised as a distinct species.