Libellago lineata

{{Short description|Species of damselfly}}

{{speciesbox

| name= River heliodor

| image = Damsel fly male amarpur Tripura 2009 11 20 9 116 1 (4456412603).jpg

| image_caption = Male

| image2 = Damselfly fem amarpur Tripura 2009 11 20 9 71 1 (4456412601) (cropped).jpg

| image2_caption = Female

| status = LC | status_system = IUCN3.1

| status_ref = {{cite iucn |author=Mitra, A. |date=2010 |title=Libellago lineata |volume=2010 |page=e.T167393A6340869 |doi=10.2305/IUCN.UK.2010-4.RLTS.T167393A6340869.en |access-date=20 November 2021}}

| genus = Libellago

| species = lineata

| authority = (Burmeister, 1839)

| synonyms =

• Micromerus obscurus {{small|Kirby, 1886}}
• Micromerus uxor {{small|Rambur, 1842}}

}}

Libellago lineata,{{World Odonata List}} the river heliodor, is a species of damselfly in the family Chlorocyphidae. It is found in many Asian countries.

The species is found in clear streams or rivers.{{cite book|last=Subramanian|first=K. A.|title=Dragonflies and Damselflies of Peninsular India - A Field Guide|year=2005|url=http://www.ias.ac.in/Publications/Overview/Dragonflies}}{{cite book|author=C FC Lt. Fraser|author-link=Frederic Charles Fraser|title=The Fauna of British India, including Ceylon and Burma, Odonata Vol. II|publisher=Taylor and Francis|location=Red Lion Court, Fleet Street, London|year=1934|pages=60–63|url=https://archive.org/details/FraserOdonata2/page/n83}}{{cite web

|url=http://indiabiodiversity.org/species/show/227574|title=Libellago lineata Burmeister, 1839|publisher=India Biodiversity Portal|accessdate=2017-02-21}}{{cite web

|url=http://www.indianodonata.org/sp/259/Libellago-lineata|title=Libellago lineata Burmeister, 1839|publisher=Odonata of India, v. 1.00. Indian Foundation for Butterflies|accessdate=2017-02-21}}