Isoukonkorento (Aeshna crenata)

• English name: Siberian Hawker
• German name: Sibirische Mosaikjungfer
• French name: N/A
• Dutch name: Siberische glazenmaker
• Swedish name: Sibirisk mosaikslända
• Norwegian name: N/A
• Finnish name: Isoukonkorento
• Danish name: Sibirisk mosaikguldsmed
• Italian name: N/A
• Czech name: N/A
• Slovenian name: N/A
• Bulgarian name: N/A

Isoukonkorento
(Aeshna crenata)

Not present

Present before 1990

Present after 1990

Present before and after 1990

Present after 2015

Map data based on J.-P. Boudot & V. J. Kalkman (eds.),
Atlas of the European Dragonflies and Damselflies

General		➤ a very large species which in Europe occurs only in the Baltic area
Classification		• suborder: Anisoptera (dragonflies); family: Aeshnidae
Conservation status		• IUCN Red List Europe: Least Concern
Scientific name		• Aeshna crenata Hagen, 1856
Name genus		• Aeshna: of uncertain origin
Name species		• crenata: from Lat. crenatus, -a, -um = notched, serrated; [crena = notch] ⇒ for the row of teeth (notches) on the male's upper appendages
Distribution		• click or tap the Map button above
Habitat		• small lakes and ponds with acidic water in forest-bordered peat bogs
Dimensions		• typical body length: 71-86 mm; hindwing: 44-60 mm
Notes		• one of the biggest and heaviest-looking species in Europe
		• regularly preys on other very large dragonflies (e.g. A. grandis)
		• aeshnids are 'fliers': they spend a lot of time on the wing and seldom hang up for a rest
Both sexes	Thorax	• the thorax is brown with two wide pale (yellow) bands on the side
	Wings	• the costa (i.e. the leading edge of the wing) is brown
Male	Thorax	• the narrow antehumeral stripe is pale (yellow or blue)
	Abdomen	• the abdomen is dark brown with blue spots
		• the upper appendages bear a row of teeth near the tip
Female	Thorax	• the antehumeral stripe is pale and greatly reduced, and may be absent altogether
	Abdomen	• the abdomen is dark brown with pale yellow or blue spots
		➤ the appendages are pointed rather than rounded
	Wings	➤ the wings often have dark patches between the node and the pterostigma
Photographs		• all of our photographs below were made in southern Finland in 2010, 2017 and 2018