Eristalinus barclayi
In 3 days ~20% in a week ~40%
Eristalinus barclayi is a species of African hoverfly found in Malawi. At 15 millimetres (0.59 in) long it is a fairly large hoverfly species. It resembles the widespread Eristalinus taeniops in its striped eyes but differs in having a strongly marked striped thorax. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Table Mountain National Park | 🇿🇦 South Africa |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Town | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report an Eristalinus barclayi sighting in Cape Town on a given day, based on 91 verified sightings from GBIF citizen-science data. It is the 60th most-seen of the 311 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.
December to May
In those months about 10% of wildlife watchers report an Eristalinus barclayi in Cape Town on a given day, against under 5% in June to November, the lowest months. Those are among Cape Town's driest months, with about 35 mm of rain a month against 140 mm in June.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Eristalinus barclayi sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Cape Town, in our data
Cape Town is the only city on Wallace's Line with enough records to rate Eristalinus barclayi sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Eristalinus barclayi is recorded against all the insects logged in Cape Town (91 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.
