Cyana marshalli
In 3 days ~10% in a week ~30%
Cyana marshalli is a moth of the family Erebidae. It was described by George Hampson in 1900. It is found in South Africa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Durban | 🇿🇦 South Africa |
Rare
Under 5% of wildlife watchers report a Marshall's Brown Lines sighting in Durban on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 186th most-seen of the 401 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.
August–September and December
In those months about 10% of wildlife watchers report a Marshall's Brown Lines in Durban on a given day, against under 5% in January–July and October–November, the lowest months.
Only Durban, in our data
Durban is the only city on Wallace's Line with enough records to rate Marshall's Brown Lines sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Marshall's Brown Lines that you can see in Durban (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Lienard's Achaea (about 10%), African Peach Moth (about 10%) and Creamstriped Owl (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Marshall's Brown Lines is recorded against all the insects logged in Durban (12 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.
