Julia Skimmer vs Western Water Penny
Side-by-side species comparison
| Attribute | Julia Skimmer | Western Water Penny |
|---|---|---|
| Scientific Name | Orthetrum julia | Psephenus falli |
| Order | Odonata | Coleoptera |
| Family | Libellulidae | Psephenidae |
| Size | 40-48 mm | 4-5 mm (adults) |
| Habitat | Rivers & Streams | Mountains |
| Diet | Omnivores | Omnivores |
| Regions | Africa | Western North America |
| 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.
Western Water Penny
A water penny beetle restricted to clean mountain streams in western North America. Its disc-shaped larvae are indicators of high water quality.
Did You Know?
The presence of water penny larvae is used by biologists as a reliable indicator that a stream is unpolluted.