Gerris swakopensis
In 3 days ~20% in a week ~50%
Gerris swakopensis is an Afrotropical species of true bug. Common names include pond skater and water strider. It is aquatic, found in habitats with standing freshwater, such as ponds, pools, and backwaters of streams. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Addo Elephant National Park | 🇿🇦 South Africa | |
| 2 | Garden Route National Park | 🇿🇦 South Africa | |
| 3 | Table Mountain National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pretoria | 🇿🇦 South Africa | |
| 2 | Johannesburg | 🇿🇦 South Africa | |
| 3 | Durban | 🇿🇦 South Africa | |
| 4 | Cape Town | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report a Common Water Strider sighting in Johannesburg on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 64th most-seen of the 213 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
Any time of year
In every month with enough records, about 10% of wildlife watchers report a Common Water Strider in Johannesburg on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Common Water Strider sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Common Water Strider sightings, Johannesburg ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Pretoria (South Africa, about 10%).
Same order: Hemiptera
The closest relatives of the Common Water Strider that you can see in Johannesburg (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Brown Stink Bug (about 20%), Gardenia Twig Wilter (about 10%) and Southern Green Stink Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Water Strider is recorded against all the insects logged in Johannesburg (25 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.
