Siberian Hawker Aeshna crenata
Large and bulky, but overall very similar to other blue hawkers.
- costae dark brown
- antehumeral stripes, if present, are often blue
- Wide stripes on the side of the thorax
- male has bright blue abdominal spots; bluer than juncea and subarctica.
- thick stem of fron T-mark (compare with Baltic Hawker)
- female has dark wing patches between nodus and the tip (other hawkers might have brown-tinted wings, but none are like crenata in this regard).
- bulky; the size difference is small and should not be used for identification.
Local and not numerous in South and East, with the most northwestwards record from near Vaasa. A species of small forest bog lakes, especially peaty acidic ponds and lakes, often occurring with Bog Hawker and Moorland Hawker.
Female Siberian Hawker has large brown wing patches and is quite easy to identify. Jussi Mäkinen
See Isoukonkorento for more pictures, including habitat (in Finnish).