Julia Skimmer vs Rock Caddisfly
Side-by-side species comparison
| Attribute | Julia Skimmer | Rock Caddisfly |
|---|---|---|
| Scientific Name | Orthetrum julia | Goera calcarata |
| Order | Odonata | Trichoptera |
| Family | Libellulidae | Goeridae |
| Size | 40-48 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Africa | Europe |
| Conservation | Least Concern | Least Concern |
Julia Skimmer
A slender African dragonfly where mature males develop a striking black and white pattern. It is found throughout sub-Saharan Africa near flowing water.
Did You Know?
Males become jet black with contrasting white markings as they mature, unlike most blue pruinose Orthetrum.
Rock Caddisfly
A caddisfly of limestone streams whose cases incorporate calcareous sand grains and pebble ballast. Larvae scrape algae from rock surfaces.
Did You Know?
The calcareous case material provides partial camouflage against the pale limestone streambed.