#3841 · 🪰 flies & mosquitoes
Wantssluipvlieg
Phasia hemiptera
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Phasia hemiptera is a tachinid fly found throughout Northern and Southern Europe. It is a strongly sexually dimorphic species, males being more colourful with curved patterned wings. Like most tachinid flies, the female lays her eggs on other insects, the larvae then develop inside the living host, devouring it and eventually killing it. Its main hosts are the forest bug Pentatoma rufipes in the spring, and the green shield bug Palomena prasina in the autumn.
base stats
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 77 times in the Netherlands on iNaturalist.
- 3,317 observations worldwide on iNaturalist.
- Scientifically named by Johan Christian Fabricius in 1794 (232 years ago).
fact sheet
- Nederlands
- Wantssluipvlieg
- scientific name
- Phasia hemiptera
- class
- Insecta
- order
- Diptera
- family
- Tachinidae
- sightings in NL
- 77
- sightings in Europe
- 3,009
- sightings worldwide
- 3,317
- GBIF records in NL
- 3,323
- weight
- —
- length
- —
- lifespan
- —
- named
- 1794 by Johan Christian Fabricius
relatives· Tachinidae
#3772 📷 8Common Tachinid
🇳🇱 Woeste sluipvlieg
Tachina fera
👀 362 in NL
#3798 📷 10Phasia aurigera
Phasia aurigera
👀 156 in NL
#3803 📷 10Red Spotted Parasite Fly
Eriothrix rufomaculata
👀 144 in NL
#3819 📷 10Mintho rufiventris
Mintho rufiventris
👀 103 in NL
#3830 📷 9Yellow-faced Fly
🇳🇱 Stekelsluipvlieg
Tachina grossa
👀 88 in NL
#3849 📷 10Ectophasia crassipennis
Ectophasia crassipennis
👀 64 in NL
#3855 📷 10Phania funesta
Phania funesta
👀 60 in NL
#3873 📷 10Dexiosoma caninum
Dexiosoma caninum
👀 46 in NL
Sources: iNaturalist taxon 356343, Wikidata Q1768818, GBIF 1464567, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.