Stemorrhages sericea
In 3 days ~20% in a week ~40%
Stemorrhages sericea, the large emerald pearl, is a moth of the subfamily of Spilomelinae within the family Crambidae. It lives throughout Africa south of the Sahara, and the Indian Ocean islands of Réunion, Madagascar, Mauritius and the Comoros.
Adults are pale turquoise with a brown stripe at the front edge of the wings. They have a brush of brown scent disseminating scales, called androconia, on the tail that can be everted for mate attraction. The larvae feed on species of the Rubiaceae (including Gardenia jasminoides), the Apocynaceae (including Nerium oleander, Tabernanthe iboga, Tabernaemontana persicaefolia and Ervatamia coronaria), and besides on Raphia and Afrocarpus. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kruger National Park | 🇿🇦 South Africa |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Durban | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report a Large Emerald Pearl sighting in Durban on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 71st most-seen of the 401 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
In that month about 20% of wildlife watchers report a Large Emerald Pearl in Durban on a given day, against under 5% in July–September and November–January, the lowest months. That is one of Durban's driest months, with about 40 mm of rain against 210 mm in January.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Large Emerald Pearl sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Durban, in our data
Durban is the only city on Wallace's Line with enough records to rate Large Emerald Pearl sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Crambidae
The closest relatives of the Large Emerald Pearl that you can see in Durban (family Crambidae, Crambid Snout Moths) are Dotted Sable (about 10%), Hawaiian Beet Webworm Moth (about 10%) and Cucumber Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Large Emerald Pearl is recorded against all the insects logged in Durban (29 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.
