Pseudagrion decorum
In 3 days ~20% in a week ~30%
Pseudagrion decorum, elegant sprite or three striped blue dart, is a species of damselfly in the family Coenagrionidae. It is found in many tropical Asian countries. It is a medium-sized damselfly with bluish green eyes with a tiny black spot on the top, paler below. Its thorax is bluish green on dorsum, and azure blue on the lower sides. There is a very thin and black mid-dorsal carina, bordered with equally
narrow black lines, running close and parallel to it on each side. There is a narrow black humeral stripe and a short black point at the upper part of postero-lateral suture. Winqs are transparent with diamond-shaped pterostigma. Abdomen is azure blue with dorsal black mark up to segment 7. Segments
8 to 10 have only narrow apical black lines. Superior anal appendages are azure blue with black tips. Female has dull colored thorax and abdomen, mid-dorsal black stripe extended to the last segment. It breeds in slow flowing marshy streams and lakes in the lowland. Commonly seen along shoreline or on emergent vegetation; seen from hilly areas only during the migration.
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| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Three Striped Blue Dart sighting in New Delhi on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 115th most-seen of the 174 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May and August–October
In those months about 10% of wildlife watchers report a Three Striped Blue Dart in New Delhi on a given day, against under 5% in June–July and November–April, the lowest months. Those are among New Delhi's wettest months, with about 95 mm of rain a month against almost none in November.
5th of 8
Of the 8 cities where we can rate Three Striped Blue Dart sightings, New Delhi ranks 5th at about 10%. The best odds are in Kota (India, about 30%), Salem (India, about 10%) and Hyderabad (India, about 10%).
Same family: Coenagrionidae
The closest relatives of the Three Striped Blue Dart that you can see in New Delhi (family Coenagrionidae, Narrow-winged Damselflies) are Western Golden Dartlet (about 20%), Coromandel Marsh Dart (about 20%) and Wandering Midget (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Three Striped Blue Dart is recorded against all the insects logged in New Delhi (9 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
