Platycheirus manicatus
In 3 days ~10% in a week ~20%
Platycheirus manicatus is a species of hoverfly. It is found across the Palearctic and in Alaska. External images and distribution map For terminology see Spheight's Key to Genera of European Syrphidae with Morphological terms.
Glossary of morphological terminology of adult Syrphidae, Steenis Picture key to Nearctic syrphid genera, Miranda et al. Length 7.9–10.1 mm (0.31–0.40 in) The face is strongly protruding downward, with the anterior oral margin extending well beyond the tubercle. The face is powdery yellow except for the shining black tubercle. (see Figure 1 and general anatomy)
The legs are dark, but with short tip of femora and connection of the tibiae pale. The first two tarsomeres of the foreleg are very pale. The first front tarsomere (T1, see general anatomy) is nearly triangular, about 2.5 times as wide as the tip of the tibia, and slightly longer than wide. The second front tarsomere (T2) is nearly rectangular, three-quarters as wide as the first tarsomere, and one-quarter as long. The remaining fore tarsomeres are unmodified. The fore tibia has several fine, wavy setae (hairs) on the outer half of the bottom surface, with the longest... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Dull-Backed Sedgesitter sighting in Birmingham on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 745th most-seen of the 811 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.
April and May
In those months about 10% of wildlife watchers report a Dull-Backed Sedgesitter in Birmingham on a given day, against under 5% in June to March, the lowest months.
Among the best
Of the 2 cities where we can rate Dull-Backed Sedgesitter sightings, Birmingham ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Liverpool (United Kingdom, under 5%).
Same genus: Platycheirus
The closest relatives of the Dull-Backed Sedgesitter that you can see in Birmingham (genus Platycheirus, Sedgesitters) are Grey-Spotted Sedgesitter (about 20%), Platycheirus ciliger (about 10%) and Many-Tufted Sedgesitter (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dull-Backed Sedgesitter is recorded against all the insects logged in Birmingham (5 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.
