www.yorkshiredragonflies.org.uk
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A recent colonist, the first record in 2019 coming from Harwood Dale, North Yorkshire.
First record for Yorkshire at Harwood Dale, courtesy of Steve Beevers
Photo courtesy of Keith Gittens
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Only records concerns those from 1951/52 at Long Bank Dyke, Kilnsea and one site in South-west Yorkshire.
Distribution Map
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33-36mm; Wingspan: Male 44mm; Female 48mm; Hindwing 19-24mm
The only red damselfly in Yorkshire and unlikely to be mistaken for anything else. Red abdomen, with black bands on segments 7 to 9. Thorax is black on the top with a red stripe (yellow in immatures). Black areas have a bronze tint.
Male
Occurs in three colour forms. The commonest form is typica, with black bands on most segments of the abdomen. Fulvipes is less well marked than typica and closely resembles the male. Melanotum is a dark from being mainly black, however the antehumeral stripes remain yellow (only yellow when immature in other forms).
Female – typica
This is the first damselfly to emerge each year in Yorkshire. It has a synchronous emergence, all emerging within a three week period, it is therefore shortly after emergence that this species is most abundant. Males emerge slightly earlier than females and also mature more quickly. Copulation lasts for around 15-20 minutes. Eggs are laid in tandem, the female may submerge taking the male with her. The life cycle is two years, on initially occupying a new site there may therefore only be adults found every other year.
Has a wide habitat tolerance, including brackish and slightly polluted water, though avoids fast flowing water. Higher abundance in well vegetated, standing water.
Evenly distributed across VC61-64, scarcer in VC65.
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33-37mm; Wingspan: Male 43mm; Female 46mm; Hindwing 19-24mm
Mainly bronzed black with bright red eyes. Top of thorax lacking any antehumeral stripes. Segments 1, 9 and 10 are blue. Sides of thorax are blue with black line and spur present. Legs are black. Immature male is similar to female. Similar to Small Red-eyed Damselfly which is smaller, differences occur in the blue markings. At rest the wing tips reach in to segment eight, in Small Red-eyed Damselfly the wing tips only reach as far as segment 6 or 7. Generally holds its abdomen level, where as Small Red-eyed Damselfly often holds its abdomen slightly upcurved towards the end.
Mainly black with green sides to thorax containing black line and spur. Segments 9 and 10 are black with narrow blue divisions. Eyes are a dull red colour. Usually have short shoulder stripes, though some lack them all together and some may form as explanation marks.
Strong direct flight over water. Spend lots of time resting on broad floating leaves such as water lilies. Mats of algae and debris are also used and males may use surrounding shrubs if there is little floating vegetation. After emergence they will spend time away from water to mature. The first three weeks of emergence is probably the best time to encounter this species at close quarters. Females usually only appear at water to breed. Copulation takes place over water or on nearby vegetation. Egg laying is mainly in tandem, both sexes often submerging. They are laid mainly on the underside of Water Lilies, though other floating vegetation will be used.
Preference for larger ponds, lakes and canals. Requires abundant floating vegetation, such as water-lilies Nymphaceae, or broad-leaved pondweed Potamogeton natans. When these are absent it may use floating algae mats, or rest on bankside vegetation.
StatusSpecies is at the northern edge of its range in Yorkshire.
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29mm; Wingspan: Male 38mm; Female 38mm; Hindwing 16-20mm
Similar to Red-eyed Damselfly though distinctly smaller, more likely to be overlooked as Blue-tailed Damselfly. Lacks spots behind the eyes which are reddish-brown. Pale brown pterostigma. Black top to thorax with thin, broken antehumeral stripes. Thorax side is blue with a ‘Spur’ often ending in a spot. Underside of legs are pale. Abdomen dark on top except for S1, S9- S10 and sides of S2-S3 and S8 which are blue. S10 has a black mark, rather like an X, on the top. Wing tips just reach past the join of segment 6 and 7, Red-eyed Damselflies reach into segment 8. Often holds it’s abdomen slightly upcurved, Red-eyed Damselflies hold their abdomen level.
Lack spots behind the eyes. Pale brown pterostigma. Black top to thorax with complete antehumeral stripes. Thorax side is blue-green. Abdomen is predominantly black with a wedge of colour on S10.
During the day males appear constantly active, patrolling well away from the margin in search of females. Once copulation has taken place, they oviposit in tandem into stems and leaves of floating vegetation. They can often submerge for long periods of time. Larvae live among submerged water plants and emerge after one year on to floating vegetation.
Ponds, lakes and ditches with plenty of floating vegetation such as Hornwort Ceratophyllum, Water-milfoil Myriophyllum and Waterweed Elodea. Also uses rafts of floating algae. Generally found in sheltered positions, with nearby trees and shrubs for roosting. Will tolerate brackish conditions.
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29-34mm; Wingspan: 35-40mm; Hindwing 14-21mm
Dark bronze-black metallic with blue segment 8. Blue or green sides to the thorax and antehumeral stripes. Blue eye spots. Pterostigma is distinctive being bi-coloured black and white. Tips of the lower appendages diverge.
Occur in several colour forms dependent on age. Segment 8, though not always blue, is usually clearly different from the other sections. Start as either rufescens with a reddish-pink thorax and blue segment 8 or violacea with a violet thorax and antehumeral stripes, black humeral stripes and blue segment 8. After around eight days they mature and change colour, rufescens become greenish-brown of the form rufescens-obsoleta. The form violacea mature into two separate from. The first is infuscans which is a pale green colour, and retaining the black humeral stripes. The second is an andromorph form which adopts the same colours as a male.
Often found in marginal vegetation in large numbers. Copulation last from between two to six hours, due to this, it is the most frequently observed species seen in the wheel position. Often females selected by the males are still in their immature colour forms. Females oviposit alone onto the tissue of aquatic plants and debris, where they are not usually harassed by the males. Frequently found in dull weather when other species are inactive. Larvae emerge after one to two years.
Wide range including garden ponds, lakes, rivers, canals and ditches. Can also be found in brackish conditions and acidic peaty pools. More tolerant of pollution than other species, only really avoiding fast-flowing water. Readily disperses and is one of the first species to colonise new sites.
StatusCommon and widespread throughout the area.
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33mm, Wings 36-44mm
Bright blue body with black markings; thorax black top with 2 thin antehumeral stripes; abdomen black U-shaped mark segment 2, segment 8 blue and 9 marked black; eyes bright spots not joined by a bar.
2 colour forms:-
1) Body green with black markings on upper surface; segment 2 with black thistle shape.
2) Blue form has “mercury” shape on segment 2; rest of black upper markings are more extensive; narrow pale antehumeral stripes.
Note: The shape of the pronotum is the only conclusive way to seperate this species from Variable Damselfly. Personal observations have highlighted that female Azure Damselflies lack the bar between the eye spots, compared to Variable Damselfly.
Initially this species is more abundant than the similar Common Blue Damselfly with which it can be easily confused. It is easy to make the mistake of identifying early blue damselflies as being Azure, then assuming on later visits that this is still the case. However after four of five weeks, Azure can suddenly become harder to find as Common Blue Damselfly become more abundant.
Wide range of habitats from garden ponds, lakes, ditches, streams, canals and rivers to peaty pools. The main requirement is plenty of marginal vegetation in sheltered locations. Frequently settles on floating vegetation, as well as being readily found in adjacent grasslands and sheltered woodland edges.
Not territorial. Copulation is prolonged on warm sunny days. Pairs oviposit in tandem into soft plant tissue, often submerging to do so. Larvae live among submerged vegetation and emerge after one year. Emergence takes place on marginal vegetation or flower spikes in the centre of water bodies. Females emerge first, followed a few days later by the males.
StatusCommon
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23-30mm; Wingspan: Male 42mm; Female 42mm; Hindwing 16-23mm
Coenagrion Spur’ on side of thorax, also present on Azure Damselfly, but absent on Common Blue Damselfly. Antehumeral stripes are usually broken, sometimes they can be absent or complete. Wine glass marking on segment two of the abdomen. Segment nine contains a square with three points (three pointed crown). Overall appears more slender and darker than the similar Azure Damselfly. Can be confirmed by the strongly trilobate margins of the pronotum.
‘Coenagrion Spur’ on side of thorax, also present on Azure Damselfly, but absent on Common Blue Damselfly. Antehumeral stripes are usually complete. Black thistle shape on segment two. Blue form, blue on top of the abdomen. Dark form, similar to Azure Damselfly is not as numerous. Overall appears bluer than the similar Azure Damselfly.
Note: The shape of the pronotum is the only conclusive way to seperate this species from Azure Damselfly. Personal observations have highlighted that female Variable Damselflies have a bar between the eye spots, which is absent in Azure Damselfly.
Males are none territorial. Copulation last around 10-15 minutes. Once copulation has taken place the pair will oviposit in tandem, into stems of floating water plants, or remains of rushes and common reed. The larvae develop in one year living among submerged vegetation.
Fens, ponds, lakes, slow-flowing dykes, canals and peaty pools. Dependant on plenty of emergent vegetation. After emergence, tenerals require sheltered areas to mature, often being found in adjacent grasslands and in the lee of shrubbery and hedgerows.
After a tentative report in 2006, now confirmed as being present in East Yorkshire. Currently restricted to the Broomfleet Washlands complex. This is currently the only species present in Yorkshire that is of national importance due to its near threatened status.
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32mm, Wings 36-42mm
Bright blue body with black markings on upper surface of abdomen, segment 2 has lollipop mark; segment 8 and 9 all blue; broad antehumeral stripes on black thorax; eye spot linked by bar.
3 colour forms:-
1) abdomen with black markings.
2) Green with black markings.
3) Brown with black markings. All have characteristic medial spine under segment 8, presumably puncturing plant material before inserting an egg.
Large ponds and lakes are the main preference for this species. Can also be found along canals and rivers, but will also tolerate brackish conditions. The most abundant Zygoptera found in open areas.
The most dominant species on large lakes and reservoirs, swarming over the waters surface far from the banks in sunny conditions. Readily settles on emergent vegetation and is aggressive towards others, even driving away larger species. Copulation lasts for around 20 minutes, frequently away from water. Oviposits into submerged and emergent vegetation, usually in tandem. If the female submerges the male will uncouple, guarding the area waiting for her to re-emerge. Females can submerge for up to an hour. Larvae live amongst submerged vegetation emerging after 1-3 years. They mature in surrounding areas over a period of around 12 days.
Occurs on a wide range of varying water-bodies. Can be more conspicuous than the similar Azure Damselfly. Blue damselflies ranging far over open water are usually this species. Generally the most abundant blue damselfly at sites, where the Azure can be absent.
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First recorded in 2018, with individuals present at Flamborough and Spurn.
Male Southern Migrant Hawker at Spurn, photographs courtesy of Daniel Branch
