Showing posts with label White-legged Damselfly. Show all posts
Showing posts with label White-legged Damselfly. Show all posts

Thursday, 21 June 2012

Scarce Chasers on the River Avon

June 20, 2012:
Today, on a slow-flowing section of the river downstream from Pershore there was much dragonfly activity whenever the sun came out. The speciality here is the Scarce Chaser (Libellula fulva) and at least four males were seen, sometimes patrolling low over the water but mostly perched territorially in riverside vegetation.




Also present were many White-legged and Red-eyed Damselflies, the latter resting out on the floating lily-pads. Many Blue-tailed and Large Red Damselflies were also in evidence and a profusion of Banded Demoiselles flitted along the river bank, a female of which was seen feeding on a mayfly.




River Avon at the site

Sunday, 5 June 2011

A good day in Shropshire for Damselflies

June 4, 2011
Good warm sunny weather prompted a visit to Shropshire especially to look for White-legged, Variable and Red-eyed Damselflies. Localities near Atcham and Berrington were visited as these are places where all three are known to occur. White-legged Damselflies are nearing their northern limit here but neverheless are quite frequent amongst the dense bankside vegetation of the slow flowing River Severn. Many were seen today in various stages of maturing colour form but could be readily recognised by their distinctive white legs.


[The distinctive white legs showed up well]


[The chocolate brown pterostigmas are distinctive]





Below, two photos of an immature:




On a small pool near Berrington several Variable Damselflies were found, the distinctive ‘wine-glass’ shape on segment 2 helping to separate them from other Blues. Some of the males had the characteristic ‘exclamation mark’ bands on the thorax although this was not always the case as indicated in the common name.





[Variable Damselflies]

Male Red-eyed Damselflies staked out their territories on the lily-pads and were especially aggressive towards other males.




[Red-eyed Damselflies]

Blue-tails were also frequent as were Azures and Common Blues. Large Reds were present but not so common.


[Blue-tailed Damselfly, male]


[Azure Damselflies, pair]


[Common Blue Damselfly, male]


[Large Red Damselfly]

Altogether 10 species were seen including Banded Demoiselles, two Broad-bodied Chasers and a distant Downy Emerald.



[The pool at Berrington and the water-lily pads favoured by the Red-eyeds]