Chalcolestes parvidens
In 3 days ~20% in a week ~40%
Chalcolestes parvidens, formerly Lestes parvidens, is a damselfly of the family Lestidae. It has a metallic green body and at rest it holds its wings away from its body. Its common name in English is the eastern willow spreadwing.
The genus Chalcolestes is separated from Lestes because of differences in their larvae. C. parvidens is closely related to C. viridis and used to be considered a subspecies of C. viridis, however there are small morphological differences between the two species both as adults and larvae and analysis of proteins from the two species, by electrophoresis, also supports their separation into two species, but they are hard to tell apart in the field.
Chalcolestes parvidens is found in eastern and central Europe, in Croatia, Bulgaria, Greece, Italy, Syria, Jordan, Israel and Turkey. It is found on islands in the eastern Mediterranean; on Cyprus, Corsica, Crete and Sicily. In Italy and the Balkans both C. parvidens and C. viridis occur together. It is only in the last 20 years that odonaterists have been separating C. parvidens from C. viridis so some of the older records for C. viridis will probably be for C. parvidens... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rostov-on-Don | 🇷🇺 Russia | |
| 2 | Istanbul | 🇹🇷 Turkey | |
| 3 | Budapest | 🇭🇺 Hungary | |
| 4 | Bucharest | 🇷🇴 Romania |
With luck
About 10% of wildlife watchers report an Eastern Willow Spreadwing sighting in Istanbul on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 102nd most-seen of the 266 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May to October
In those months about 10% of wildlife watchers report an Eastern Willow Spreadwing in Istanbul on a given day, against under 5% in November to April, the lowest months.
2nd of 4
Of the 4 cities where we can rate Eastern Willow Spreadwing sightings, Istanbul ranks 2nd at about 10%. The best odds are in Rostov-on-Don (Russia, about 20%).
Same order: Odonata
The closest relatives of the Eastern Willow Spreadwing that you can see in Istanbul (order Odonata, Dragonflies and Damselflies) are Black-Tailed Skimmer (about 10%), Nomad (about 10%) and Blue-Tailed Damselfly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Willow Spreadwing is recorded against all the insects logged in Istanbul (16 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.
