Ischnura rubilio
In 3 days ~40% in a week ~80%
Ischnura rubilio, western golden dartlet, is a species of damselfly in the family Coenagrionidae. It is found in Indian subcontinent and Iran. Earlier it was considered as a subspecies of Ischnura aurora, distributed from Australia and Pacific Islands. There are strong differences in DNA between the Asian forms of the species and specimens from the Pacific. There is also some morphological differences; dorsal side of segment 8 and 9 are entirely blue in Asian forms compared to only 1/3 of length of segment 8 is blue in specimens from the Pacific. The form found in Indian subcontinent and Iran is Ischnura aurora rubilio Selys, 1876 and is now considered as a good species, Ischnura rubilio.
It is a small apple green damselfly with black thoracic stripes, black capped olive green eyes, and blue tipped yellow tail. Its thorax is bronzed black color on dorsal side with narrow olive green antehumeral stripes. The lateral sides of the thorax is also pale olive green. The wing spots are different in fore and hind-wings. It is rose-red for its proximal half and transparent for the distal. Its abdomen is rusty-yellow, except for segments 8 to 10, which are azure... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tiruchirappalli | 🇮🇳 India | |
| 2 | Kota | 🇮🇳 India | |
| 3 | Kanpur | 🇮🇳 India | |
| 4 | Hyderabad | 🇮🇳 India | |
| 5 | Chandigarh | 🇮🇳 India | |
| 6 | Chennai | 🇮🇳 India | |
| 7 | Thiruvananthapuram | 🇮🇳 India | |
| 8 | New Delhi | 🇮🇳 India | |
| 9 | Vadodara | 🇮🇳 India | |
| 10 | Thrissur | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Western Golden Dartlet sighting in Thiruvananthapuram on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 60th most-seen of the 112 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 80%, if each day is a fresh chance.
February and March
In those months about 40% of wildlife watchers report a Western Golden Dartlet in Thiruvananthapuram on a given day, against under 5% in May and July–December, the lowest months. Those are among Thiruvananthapuram's driest months, with about 35 mm of rain a month against 290 mm in October.
7th of 16
Of the 16 cities where we can rate Western Golden Dartlet sightings, Thiruvananthapuram ranks 7th at about 20%. The best odds are in Tiruchirappalli (India, about 40%), Kota (India, about 30%) and Kanpur (India, about 30%).
Same family: Coenagrionidae
The closest relatives of the Western Golden Dartlet that you can see in Thiruvananthapuram (family Coenagrionidae, Narrow-winged Damselflies) are Coromandel Marsh Dart (about 40%), Wandering Midget (about 30%) and Blue Riverdamsel (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Golden Dartlet is recorded against all the insects logged in Thiruvananthapuram (10 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.
