Ophiusa tirhaca
In 3 days ~10% in a week ~20%
Ophiusa tirhaca, the green drab, is a moth of the family Erebidae. The species was first described by Pieter Cramer in 1777. It is found in southern Europe, Africa, Australia and the southern parts of Asia. The wingspan is about 50 mm.
The larvae feed on heath, Pistacia lentiscus, Pistacia terebinthus, Cotinus coggygria, Rhus coriaria, Rhus cotinus, Cistus, Eucalyptus, Osyris, Viburnum and Pelargonium. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kruger National Park | 🇿🇦 South Africa | |
| 2 | Table Mountain National Park | 🇿🇦 South Africa |
Rare
Under 5% of wildlife watchers report a Green Drab sighting in Kruger National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 588th most-seen of the 748 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.
December
In that month about 10% of wildlife watchers report a Green Drab in Kruger National Park on a given day, against under 5% in January to November, the lowest months. That is one of Kruger National Park's wettest months, with about 95 mm of rain against almost none in August.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Green Drab sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 2 parks where we can rate Green Drab sightings, Kruger National Park has the highest daily chance: under 5%. Next come Table Mountain National Park (South Africa, under 5%).
GBIF citizen-science records
It is estimated from how often the Green Drab is recorded against all the insects logged in Kruger National Park (7 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.
