Winter Crane Fly vs Stalk-Eyed Fly
Side-by-side species comparison
| Attribute | Winter Crane Fly | Stalk-Eyed Fly |
|---|---|---|
| Scientific Name | Trichocera annulata | Teleopsis dalmanni |
| Order | Diptera | Diptera |
| Family | Trichoceridae | Diopsidae |
| Size | 5-10 mm | 6-10 mm body (eye span up to 25 mm) |
| Habitat | Woodlands | Rivers & Streams |
| Diet | Detritivores | Fungus Feeders |
| Regions | Europe, North America | Asia |
| Conservation | Least Concern | Least Concern |
Winter Crane Fly
A cold-adapted crane fly that forms mating swarms in winter even in freezing weather.
Did You Know?
It can be seen dancing in aerial swarms on sunny winter days near buildings.
Stalk-Eyed Fly
Males have eyes on the tips of long rigid stalks that can span wider than their body length. Females prefer males with wider eye spans, driving extreme sexual selection.
Did You Know?
Males compete by facing each other and comparing eye span — the wider-eyed male wins. Females prefer wide-eyed males because eye span indicates good genes.