Bog Hawker
(Aeshna subarctica)

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The Bog Hawker (Aeshna subarctica) looks very similar indeed to the much more widespread Moorland Hawker (Aeshna juncea). It may tend to be slightly the smaller of the two species, its coloration may typically be a bit paler, and its costa (that is, the leading edge of the wing) may tend to be brown rather than yellow, but none of these differences are 100% reliable or very useful in the field. Much more diagnostic, if you're lucky enough to get a close-up, are the absence of a yellow spot right behind the eye (i.e. Aeshna juncea nearly always has such a yellow spot while A. subarctica doesn't), and the width of the line which runs across the face, which narrows at the base in A. juncea but not in A. subarctica. Aeshna subarctica has a limited range and only occurs in bogs and moorlands in the North-East of Europe and in similar habitats at altitude in Central Europe. Our only photographs of the species to date were made in moorland areas in the South of Germany and in Finland and show ovipositing females laying their eggs - typically - on floating peat moss. [Update: in August 2011 we managed to photograph a few males of this species, mostly in flight, at a lake in Northern Italy (where the species was first discovered only recently).]

For an overview of the Bog Hawker's distribution in Europe, hover your mouse pointer over the map symbol European distribution. With the editors' permission we have based this map on data to be published in Kalkman, V. J. & J.-P. Boudot (eds.), Atlas of the Dragonflies of Europe (in prep.).

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Dr1249 uncropped photo no flash used manual focus Dr1250 uncropped photo no flash used manual focus Dr1251 uncropped photo no flash used manual focus Dr1252 uncropped photo no flash used manual focus Dr1253 uncropped photo no flash used manual focus
Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1249. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1250. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1251. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1252. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1253.
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Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1439. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1440. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1441. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1442. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1601.
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Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1602. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1603. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1604. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1605. Bog Hawker (Aeshna subarctica) - female. PhotoID: Dr1606.
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Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1607. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1608. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1609. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1610. Bog Hawker (Aeshna subarctica) - male. PhotoID: Dr1611.