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#3850 · 🪰 flies & mosquitoes

Semaphore Fly

Poecilobothrus nobilitatus

🪰 Flies & mosquitoes 📍 in the Netherlands
Semaphore Fly, photo 1 of 10
1/10 © Jürgen Mangelsdorf · CC BY-NC-ND 4.0

what is it?

Poecilobothrus nobilitatus or Semaphore Fly is a species of fly in the family Dolichopodidae.

base stats

  • NL sightings 63iNaturalist, research grade
  • worldwide 2,497iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • Spotted 63 times in the Netherlands on iNaturalist.
  • 2,497 observations worldwide on iNaturalist.
  • Scientifically named in 1767 (259 years ago).

fact sheet

English
Semaphore Fly
scientific name
Poecilobothrus nobilitatus
class
Insecta
order
Diptera
family
Dolichopodidae
sightings in NL
63
sightings in Europe
1,421
sightings worldwide
2,497
GBIF records in NL
8,111
weight
—
length
—
lifespan
—
named
1767

relatives· Dolichopodidae

Sources: iNaturalist taxon 451398, Wikidata Q2100394, GBIF 1610221, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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