Stalk-Eyed Fly vs Clubtail Dragonfly
Side-by-side species comparison
| Attribute | Stalk-Eyed Fly | Clubtail Dragonfly |
|---|---|---|
| Scientific Name | Teleopsis dalmanni | Ophiogomphus cecilia |
| Order | Diptera | Odonata |
| Family | Diopsidae | Gomphidae |
| Size | 6-10 mm body (eye span up to 25 mm) | 50-55 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Fungus Feeders | Predators |
| Regions | Asia | Europe |
| Conservation | Least Concern | Near Threatened |
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.
Clubtail Dragonfly
A green-eyed dragonfly with a club-shaped abdomen tip found along clean rivers.
Did You Know?
Its larvae bury themselves in clean sand and are indicators of excellent water quality.