Borbo gemella
In 3 days ~20% in a week ~40%
Borbo (Torbenlarsenia) gemella, the twin swift, is a butterfly of the family Hesperiidae. It is found in several countries of Africa, including Burkina Faso (but also Madagascar island) and south-western Arabia. The habitat consists of frost-free savanna and forests.
The wingspan is about 42 mm. Adults are attracted to flowers and males mud-puddle. They are on wing year round, with a peak in March and April. The larvae feed on Ehrharta, Triticum, Saccharum and Zea species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | iSimangaliso Wetland Park | 🇿🇦 South Africa | |
| 2 | Kruger National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Durban | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report a Twin Swift sighting in iSimangaliso Wetland Park on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 129th most-seen of the 316 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.
April
In that month about 20% of wildlife watchers report a Twin Swift in iSimangaliso Wetland Park on a given day, against under 5% in January–February, June, August and October–November, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Twin Swift sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Twin Swift sightings, iSimangaliso Wetland Park has the highest daily chance: about 10%. Next come Kruger National Park (South Africa, about 10%).
GBIF citizen-science records
It is estimated from how often the Twin Swift is recorded against all the insects logged in iSimangaliso Wetland Park (14 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.
