Beris chalybata
In 3 days ~20% in a week ~40%
Beris chalybata, the murky-legged black legionnaire, is a European (Northern and middle Europe from the northern Sweden down into France. European Russia) species of soldier fly. Length 5,5—5,8 mm. Male. Eyes hairy, the facets in the upper part slightly larger than below, the dividing line slightly conspicuous. Antennae black, short, shorter than the head: the annulated part short and stubby. Thorax dark metallic green, with blackish brown and longish pubescence. Abdomen dull black with blackish pubescence (long at the margin). Venter brownish black, shining. Legs yellow; coxae brownish black; tarsi, except the bases, brownish black: hind metatarsi yellow, much thickened; the four last joints of the hind tarsi are also slightly dilated. Legs with fine yellowish pubescence. Wings considerably brownish with brownish veins, stigma not conspicuous. Halteres blackish brown.
Female. Fronsin the female broad, occupying the third part of the breadth of the head. Eyes sparingly and short hairy. Front broad, black. Thorax more greenish or bluish than in the male, with short, pale brown pubescence. Abdomen dark brown, shining. Wings not brown but distinctly yellowish, with light... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom |
With luck
About 10% of wildlife watchers report a Murky-Legged Black Legionnaire sighting in Birmingham on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 321st most-seen of the 811 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.
April and May
In those months about 10% of wildlife watchers report a Murky-Legged Black Legionnaire in Birmingham on a given day, against under 5% in June to March, the lowest months.
Yes
Of the 2 cities where we can rate Murky-Legged Black Legionnaire sightings, Birmingham has the highest daily chance: about 10%. Next come London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Murky-Legged Black Legionnaire is recorded against all the insects logged in Birmingham (23 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.
