English: Triangle Skimmer
Binomial: Orthetrum triangulare triangulare
Triangle Skimmer is a widely distributed dragonfly in many Asian countries. It is common in montane and hilly areas such as Horton national park. Above photographs were taken at Hakgala botanical gardens, which is good place to observe this dragonfly in Sri Lanka. IUCN Red List status of this dragonfly is 'Least Concern'.