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Migrant hawker

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in 2000. It breeds in lakes and ponds and is tolerant of brackish water. It is also found away from water hawking high amongst trees and bushes, but often resting low on vegetation. A specimen was discovered in early August 2011 adjacent to a riparian park in Calgary, Alberta. Another one was found
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which appears dark in flight. It is similar in appearance to other aeshnas but has a characteristic "golf-tee" shaped mark on the second segment of the abdomen (S2) which is diagnostic. In flight it looks like a small Emperor dragonfly with a blue abdomen which, when seen from the side, curves down.
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has been seen on the wing in all months of the year but most commonly from July to Late October or early November. After emergence, the immature adults fly away from water and spends their time feeding and becoming sexually mature. They are not territorial and they are often seen feeding or resting
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males are less territorial than other male aeshnas. Males form a tandem pairing with a female on the wing and copulate. After mating the male and female split up and the female oviposits alone. The eggs develop and then enter dipause and it is as diapause eggs that
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is found throughout central and southern Europe, north Africa, the Middle East and across Asia to China and Japan. As it is a migratory species it can occur outside its normal range and in recent years it has been spreading northwards. For example in the
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in groups, occasionally forming large feeding swarms. They can be found around trees and bushes quite high up. Once mature, they return to water and begin mating behaviour with the males patrolling looking for females.
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overwinter. In spring the eggs hatch into a prolarva which only lasts from a few seconds to a few minutes, the prolarva then molts into a stadium 2 larva. Larval development is rapid and adults emerge in summer.
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this insect was rare until the 1940s when it began migrating from the continent in large numbers. It continues to do so and is now a resident breeding species throughout
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the sides of the thorax are similar in colour but the yellow is separated by dark brown areas so it gives the appearance of having two broad yellow stripes.
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d'Aguilar, J., Dommanget, JL., and Prechac, R. (1986) A field guide to the Dragonflies of Britain, Europe and North Africa. Collins. pp336.
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on September 3, 2015 in Fort Collins, Colorado flying around in a backyard over a trampoline. Probably confusing it as a small, dark pond.
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Dijkstra, K-D.B & Lewington, R. (2006) Field Guide to the Dragonflies of Britain and Europe. British Wildlife Publishing.
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Boudot JP., et al. (2009) Atlas of the Odonata of the Mediterranean and North Africa. Libellula Supplement 9:1-256.
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where the two species fly together. The markings on the side of the thorax are different in
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is a univoltine species, that is to say that it completes its life-cycle in one year.
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the sides of the thorax are greeny yellow with fine black lines along the sutures. In
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The main identification problem in the field is distinguishing this species from
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Askew, R.R. (2004) The Dragonflies of Europe. (revised ed.) Harley Books.
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sites. The flight period is from July to the end of October.
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Index

Migrant Hawker


Scientific classification
Edit this classification
Eukaryota
Animalia
Arthropoda
Insecta
Odonata
Anisoptera
Aeshnidae
Aeshna
Binomial name
Latreille

dragonflies
brackish
North Africa
Europe
Baltic region
A. affinis
A. affinis
A. affinis
Male, showing markings
Female, showing markings
Male
United Kingdom
England
Wales

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