Sinuate-winged Damselfly vs Common Water Penny
Side-by-side species comparison
| Attribute | Sinuate-winged Damselfly | Common Water Penny |
|---|---|---|
| Scientific Name | Tatocnemis sinuatipennis | Psephenus herricki |
| Order | Odonata | Coleoptera |
| Family | Platycnemididae | Psephenidae |
| Size | 35-42 mm | 4-6 mm (adults); 6-10 mm (larvae) |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Madagascar | Eastern North America |
| Conservation | Data Deficient | Least Concern |
Sinuate-winged Damselfly
An endemic damselfly with distinctively sinuate or wavy-edged wings, a feature unique among Malagasy odonates. Males have a metallic green thorax and pale blue abdomen.
Did You Know?
The unusual wavy wing shape is found in no other damselfly genus, making Tatocnemis instantly recognizable in the field.
Common Water Penny
A small aquatic beetle whose larvae are flattened and round like a copper penny, clinging to rocks in fast streams. Adults are terrestrial and short-lived.
Did You Know?
Larvae are so flat they can cling to rocks in torrential currents that would wash away most other insects.