Toxonevra muliebris
In 3 days ~10% in a week ~20%
Toxonevra muliebris is a species of flutter fly in the family Pallopteridae. It has been found in Europe and North America. The pattern on the wings of this species is distinctive. This species was first described by Moses Harris under the name Musca muliebris. Subsequently, this species has been included within the genus Palloptera. It has also been known under the name Toxoneura muliebris. However this name is regarded as being a misspelling of the genus Toxonevra. It is currently known as Toxonevra muliebris.
Morris described this species as follows: Measures two lines. The head, thorax, abdomen and legs, are of a pleasant pale brown. The wings are clear, having two broadish brown stripes from the apex to the shoulder, one of which lies along the sector edge, the other through the middle. This pretty fly is very scarce: it shakes its wings as it walks, like the Vibrans, and is not soon frightened away.The pattern on the wings of adults is distinctive and is a diagnostic feature when identifying this species.
This species is native to Europe, and has been observed in countries such as Spain, Italy, Austria, France, Belgium, Great... Wikipedia →
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Toxonevra muliebris sighting in Porto on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 422nd most-seen of the 498 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.
June and November
In those months about 10% of wildlife watchers report a Toxonevra muliebris in Porto on a given day, against under 5% in July–October and December–May, the lowest months.
Among the best
Of the 7 cities where we can rate Toxonevra muliebris sightings, Porto ranks 4th at under 5%, level with the leaders once rounded. The best odds are in London (United Kingdom, under 5%), Paris (France, under 5%) and Manchester (United Kingdom, under 5%).
Same order: Diptera
The closest relatives of the Toxonevra muliebris that you can see in Porto (order Diptera, Flies) are Marmalade Hover Fly (about 10%), Stripe-Eyed Lagoon Fly (about 10%) and Common Drone Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Toxonevra muliebris is recorded against all the insects logged in Porto (7 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.
