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 Vancouver on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 350th most-seen of the 482 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Toxonevra muliebris in Vancouver on a given day, so our monthly data shows no clear season.
Among the best
Of the 7 cities where we can rate Toxonevra muliebris sightings, Vancouver ranks 6th 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 Vancouver (order Diptera, Flies) are Black-Margined Flower Fly (about 10%), Common Drone Fly (about 10%) and Common European Greenbottle 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 Vancouver (8 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.
