Pseudagrion decorum
In 3 days ~10% 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.
Rare
Under 5% of wildlife watchers report a Three Striped Blue Dart sighting in Mumbai on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 243rd most-seen of the 362 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June–July and September–October
In those months about 10% of wildlife watchers report a Three Striped Blue Dart in Mumbai on a given day, against under 5% in August and November–May, the lowest months. Those are among Mumbai's wettest months, with about 460 mm of rain a month against almost none in January.
7th of 8
Of the 8 cities where we can rate Three Striped Blue Dart sightings, Mumbai ranks 7th at under 5%. The best odds are in Kota (India, about 30%), Salem (India, about 10%) and Hyderabad (India, about 10%).
GBIF citizen-science records
It is estimated from how often the Three Striped Blue Dart is recorded against all the insects logged in Mumbai (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.
