Anax ephippiger
In 3 days ~10% in a week ~20%
Anax ephippiger, the vagrant emperor, is a species of dragonfly in the family Aeshnidae. It migrates to Afro-tropical, Europe, central and southern Asia through monsoon winds. It is found in Algeria, Angola, Botswana, Cameroon, Chad, the Democratic Republic of the Congo, Ivory Coast, Egypt, Equatorial Guinea, Ethiopia, Gambia, Ghana, Kenya, Kuwait, Madagascar, Malawi, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Niger, Nigeria, São Tomé and Príncipe, Senegal, Seychelles, Somalia, South Africa, Sri Lanka, India, Sudan, Tanzania, Togo, Uganda, United Arab Emirates, Zambia, Zimbabwe, and possibly Burundi. Recorded in Malta in 1957, and every few years since, where it is seen migrating in large numbers. It has never been recorded breeding in the Maltese archipelago. It is increasingly being recorded in coastal Southern England and up to 10 miles (16 km) inland – one was seen at Knepp Wildland on 17 November 2021 (the 5th confirmed record for that year).
It is a large dragonfly with greenish-yellow eyes. Its thorax is olivaceous-brown, paler on sides. Wings are transparent with an amber-yellow patch. Abdomen is ochreous, marked... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doñana National Park | 🇪🇸 Spain | |
| 2 | iSimangaliso Wetland Park | 🇿🇦 South Africa | |
| 3 | Kruger National Park | 🇿🇦 South Africa |
Rare
Under 5% of wildlife watchers report a Vagrant Emperor sighting in Lisbon on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 187th most-seen of the 441 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September and October
In those months about 10% of wildlife watchers report a Vagrant Emperor in Lisbon on a given day, against under 5% in November to August, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Vagrant Emperor sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 8
Of the 8 cities where we can rate Vagrant Emperor sightings, Lisbon ranks 6th at under 5%. The best odds are in Kuwait City (Kuwait, about 20%), Ahmedabad (India, about 10%) and Turin (Italy, about 10%).
GBIF citizen-science records
It is estimated from how often the Vagrant Emperor is recorded against all the insects logged in Lisbon (17 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.
