Bibio hortulanus
In 3 days ~30% in a week ~60%
Bibio hortulanus, common name marchfly, is a species of fly from the family Bibionidae. This species is present in most of Europe (Austria, Belgium, British Islands, Czech Republic, Denmark, France, Germany, Greece, Italy, Latvia, Liechtenstein, Norway, Poland, Portugal, Slovakia, Spain, Sweden and Switzerland), in North Africa and in the Middle East.
These flies mainly inhabit woodland margins, meadows, flowering crops and hedgerows. Bibio hortulanus can reach a body length of about 6.5–8.5 millimetres (0.26–0.33 in). Wing length is of about 9.5 mm. This species has an evident sexual dimorphism. The body of males is completely black and slightly smaller than the female. The thorax is covered by black hairs, with gray hairs on the sides of breast and abdomen. Head, proboscis and palpi are blackish-brown, whereas legs and halteres are black. The eyes are enormous and contiguous, while in the females they are smaller and clearly separated. The short and robust antennae are inserted under the eyes. Wings are transparent or whitish, but brownish along the costa.
In the females the dorsal surface of the thorax and the abdomen is orange-red... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Garden March Fly sighting in Jerusalem on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 94th most-seen of the 137 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
April
In that month about 30% of wildlife watchers report a Garden March Fly in Jerusalem on a given day, against under 5% in May to February, the lowest months.
Yes
Of the 6 cities where we can rate Garden March Fly sightings, Jerusalem has the highest daily chance: about 10%. Next come Tel Aviv (Israel, about 10%) and Athens (Greece, about 10%).
Same order: Diptera
The closest relatives of the Garden March Fly that you can see in Jerusalem (order Diptera, Flies) are Stripe-Eyed Lagoon Fly (about 30%), Migrant Hover Fly (about 20%) and Blue Blowfly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Garden March Fly is recorded against all the insects logged in Jerusalem (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.
