Diasemia monostigma
In 3 days ~10% in a week ~30%
Diasemia monostigma, the black wedge pyrale, is a moth of the family Crambidae. It is found in South and East Africa, including islands of the Indian Ocean. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Garden Route National Park | 🇿🇦 South Africa | |
| 2 | Table Mountain National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pretoria | 🇿🇦 South Africa | |
| 2 | Harare | 🇿🇼 Zimbabwe | |
| 3 | Johannesburg | 🇿🇦 South Africa | |
| 4 | Durban | 🇿🇦 South Africa | |
| 5 | Cape Town | 🇿🇦 South Africa |
Rare
Under 5% of wildlife watchers report a Black Wedge Pyralis sighting in Table Mountain National Park on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 138th most-seen of the 344 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.
April and September–December
In those months about 10% of wildlife watchers report a Black Wedge Pyralis in Table Mountain National Park on a given day, against under 5% in January–March and May–August, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Black Wedge Pyralis sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
2nd of 2
Of the 2 parks where we can rate Black Wedge Pyralis sightings, Table Mountain National Park ranks 2nd at under 5%. The best odds are in Garden Route National Park (South Africa, about 10%).
GBIF citizen-science records
It is estimated from how often the Black Wedge Pyralis is recorded against all the insects logged in Table Mountain National Park (25 verified sightings from 2019 to 2026), 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.
