Showing posts with label azure damselfly. Show all posts
Showing posts with label azure damselfly. Show all posts

Tuesday, November 20, 2012

Dragonflies, counting up 2012

I am counting up the odonate species from the spring to autumn season of 2012 today. I must say I feel a little cheated as one of the best photo shoots I had recently was trapped on my camera when unfortunately it got stolen. That took care of four spotted chaser and emperor dragonfly which I had with great care and patience managed to approach. Grumbling aside, I did rather better with damselflies then dragonflies.

1. Banded demoiselle (Calopteryx splendens) 
From my trip to Carlow I found these beauties clinging to the reeds everywhere by the river. Stunning and a delight are terms I would gladly use for this species. I also found some right in the city centre but couldn’t approach them.


2. Beautiful demoiselle (Calopteryx virgo) 
Considerably harder to approach due to its habit of flying to a nearby tree top when interrupted. Perseverance got me some alright shots though I feel with more time I could have done better.


3. Large red damselfly (Pyrrhosoma nymphula) 
Another new one for me this year. The large red damselfly does exactly what it sais on the tin and is rather easy to identify given that it’s the only red species in Ireland.


4. Azure damselfly (Coenagrion puella) 
One of Ireland’s several blue species; the azure can be distinguished most easily by the markings at the base of its tail. This is the blue I encountered most often this year.


5. Common blue damselfly (Enallagma cyathigerum) 
Much like the above species but again with different markings, the common blue has a different less azure shade (obviously I suppose). My main sight for them is Blarney castle gardens.


6. Blue tailed damselfly (Ischnura elegans) 
Another blue damselfly; this one is not however in the same family and can quite clearly be told apart by its mostly black abdomen which has a bright blue end. Sometimes in flight this delicate creature looks like its carrying a tiny blue light on its tail.


7. Emerald damselfly (Lestes sponsa)
I really wanted to see one of these and after considerable late season searching one is what I got, in the shade with overcast skies, because of this the colours of this species don’t really show in this shot.


8. Emperor dragonfly (Anax imperator) 
Large and impressive species that has moved into Irish parts only recently but is now relatively easy to find. The below shot was meant as a preview of the pictures to come on facebook but now stand as my only emperor pic this year.


9. Migrant hawker (Aeshna mixta) 
Like its name suggests this hawker is migratory and like the emperor it is pretty new in Ireland. It seems to be more approachable then its cousins the common and brown hawkers.


10. Common darter (Sympetrum striolatum) 
My most photographed dragonfly, the common darter appears late in the season but is quite plentiful in places.


Other species I spotted but did not manage to photograph where ruddy darter, black darter, red veined darter, common hawker, brown hawker (likely) & four spotted chaser. Until summer 2013 then for these guys!

Wednesday, August 22, 2012

Large red & Azure damselflies

(originally published May 19, 2012)
Whilst taking a stroll around Little island near Cork last week I managed to find a sizeable group of large red damselflies in Fota gardens. At first I feared that getting close to them might be problematic and therefore I wouldn’t get a good shot. This fear was soon laid to rest as I discovered a minimum of 50 of these lovely damselflies. I never saw this species before which made the day all the better. This is Ireland’s only red species of damselfly aside from the rufescens form blue tailed damselfly I found last year. These are my first Odontates of 2012. Hopefully there will be plenty more to follow.



Amongst them where a small number of blue type damselflies. Once home and looking through the pictures I quickly ruled out blue tailed and common blue damselflies which left only azure and variable damselflies as candidates. I can’t say it was easy since some of the diagnostic features are hard to figure out from these shots. With some help at dragonflyireland’s facebook page however they were pinned down to azure’s.

Sunday, August 28, 2011

Revenge of the Odontates

Went back to Blarney lake the last day to get some more pictures of the dragon and damselflies that live there before winter sets in and they disappear, surprisingly the species I found last time seem to have declined or disappeared entirely and have been replaced by a large population of ruddy darters. All in all we saw about 50 of these very picturesque dragonflies (below).




.
Very approachable species and quite easy to capture on camera as well, perhaps the only downfall is their tendency to sit flush with the ground making side profile shots difficult. They are quite territorial and jealously defend their patch of about 2 meters from passersby. I know very little about insect behaviour but my guess would be that the dragonfly with the best territory gets the girl. There was plenty of egg laying couples present as well bobbing up and down together over the water’s surface. Very interesting!


.
The drastically smaller population of damselflies that remains consists of the same species I saw here before, namely blue tailed, common blue and azure. There may have been variables too; frankly telling them apart gives me a migraine! (Some of the ones below may be wrong). 
Blue tailed damselfly

Azure damselfly

.
I thought this was quite interesting, a pair of blue tailed damselflies mating and getting attacked by an azure damselfly. Weird behaviour! Perhaps this again is a territorial dispute but the damsels generally don’t seem that fussed over territories, maybe these species are in competition for egg laying spots. Heck, maybe he crash landed!

.

Finally we spotted several emperor dragonflies, the largest dragonflies I have ever seen in Ireland and also a bit nightmarish in appearance. It’s as big as my fist and flies around in quite an aggressive manner. The fact that it buzzes while doing this and comes quite close at times doesn’t help either. Instinctive caution aside it is actually harmless to humans (obviously). The females seemed busy looking for the best lilies to lay their eggs under. Unlike the darters and damsels the pairs aren’t attached whilst laying eggs. Not sure if this is a trait of their subfamily or if they are simply too heavy to do so. Interesting to compare the three species and their different methods of egg laying though.
If ever there was a competition for perfect predator then the massive emperor would be a prime candidate.
Female laying an egg
 .
Oh yeah, almost forgot about the butterflies. Quite like the red admiral below, delighted to get a non cropped picture of one of these beautiful butterflies before they too disappear.
Common blue

Red admiral buttefly, one of several on a thistle bush