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Insects (Insecta)
- Dragonflies (Anisoptera)
Keeled skimmer
(Orthetrum coerulescens)
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| female | male |
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| How to differ between O. coerulescens & O. brunneum ? | |
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| in the middle of the forewing find a row of fields emphasized on the photo below.. | |
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| Orthetrum coerulescens - no fields split | Orthetrum brunneum - some split fields exist |
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| Orthetrum coerulescens - brown face | Orthetrum brunneum - blue face |