Tag Archives: fauna

The Spring/Summer Intermediate

We’ve had a cold spring this year, and now we have reached the intermediate time when spring turns into summer. The first thing you will notice about this time of year is that, despite long days and sunny spells, there are few butterflies about. You might see one or two Orange-tip butterflies still on the wing,  but their time is now pretty much over until next year. They are beautiful though:

There are, of course, other butterflies around, but they are small in number, and mostly more drab species, such as the Speckled Wood,  which is a species I’m very fond of because it makes up for its lack of colours with attitude, being a cheeky butterfly that will ‘buzz’ you. However, butterflies aside, there are lots of other interesting creatures, such as beetles. In woodland glades you might find long horn beetles, aka timberman beetles, feeding on pollen. Here’s a very handsome species, Rhagium bifasciatum, which I found on a buttercup flower:

On the bogs along the coast of Wicklow there are many interesting creatures and plants to be seen at this time of year. There are warbler species and Stonechats are very brazen and beautiful in their breeding plumage – such as this male which regarded me suspiciously as I walked along the railway fence:

At this moment the bogs are covered in the beautiful blooms of the Yellow Flag, an iris species which grows in waterlogged ground and even in ponds. Many insects depend on them:

Keep an eye out for a very large caterpillar, which you might see crossing your path on a bog walkway if you visit a nature reserve. This wonderful-looking creature is the caterpillar of the Drinker Moth (Euthrix potatoria). The caterpillar is actually the source of the name, as it is said to be seen to drink drops of dew at this time of year,  a story that could have some truth to it, as folklore often does.:

The moth is much smaller than the caterpillar, but technically a large moth, as all of its relatives are quite big. The Drinker Moth is very stout and robust in a chunky sort of way. While you are looking for these caterpillars you might have a largish dragonfly zoom noisily past your ear. This will probably be the Hairy Hawker (Brachytron pratense), which is one of our earliest large dragonfly species. It is colourful and definitely hairy. I was very lucky to get a close-up shot of one only recently, and the camera lens was literally only a few centimetres from the dragonfly, which remained calm as it perched on a nettle:

Finally, a number of people have asked me if I could tell them what the amazing-looking  small blue-green beetles are that can be found on almost every flower along the coastal dunes in the last few weeks, as it is not easily found in books or online. That is definitely true. This beetle is the Blue-Green Soft-winged Flower Beetle (Psilothrix viridicoeruleus), which is a remarkably hairy little creature and seems to spend its time eating pollen and mating. Living the dream, I guess:

   Lately we have been having a very wet and cold time of it, and this does sometimes happen, with the weather far below par up until the Summer Solstice, which is the longest day of the year, but also the exact border between the seasons, ending the springtime and starting the true summer. The Summer Solstice this year will be this Friday at precisely six minutes before five o’clock in the afternoon in our local time, which is British Summertime (15.54 GMT). Many great summers started off as bad, if not worse than this one, so we can still hope for the best.

Sighting the first Swallow of the year

On Monday 28 March my brother Trevor and I paid a visit to the East Coast Nature Reserve. No sooner had we arrived than he spotted an unfortunate moth attempting to tread water in a slow moving area of river by the entrance. I climbed over the fence, and found a stick to fish the moth out with. This was a serious feat of derring-do, because if I’d fallen in I would have been wet to the knees. It was a Hebrew Character moth – Orthosia gothica – and I left it on some warm stones to dry off.

Hebrew Character

We spoke to the warden and project manager, Jerry Wray. Jerry was very busy, but took time out to tell me of some Garganey ducks that had arrived, and to lament the absence of the Stonechats, which seem to have been forced into a migration, or killed, by the severe winter. Only time will tell.

Jerry Wray on his East Coast Nature Reserve

As we sat in the main hide looking out for the Garganeys, on the ponds and lake of the reserve, Jerry suddenly shouted “There’s a Swallow!” and a single bird zoomed past the windows and began dipping in the lake for water. “That’s the first one I’ve seen this year! Have you seen many?” I asked. “No, That’s my first one aswell.”
That made the event even more special.

First Swallow of the year

Unfortunately I wasn’t quick enough to get a shot with my camera, but my brother Trevor managed to snap the bird. Not perfect, but pretty good for an unexpected appearance that didn’t last very long. And then the Swallow was gone. Later Jerry saw an entire flock of Swallows, which then followed the shore and astounded onlookers birdwatching at the Kilcoole Reserve to the north.

As Jerry headed back to work, Trevor and I decided to examine the reedbeds and see if there were any new developments. On the boardwalk we found two very interesting insects. The first was a brightly-coloured species of Rove Beetle, known only by its scientific name of Paederus riparius. Bright colours warn of noxious chemical spray from the rear-end. This lovely beetle normally patrols sandy areas, hunting fro smaller insects. It is only about 1cm long, at most, and very narrow.

Rove Beetle (Paederus riparius)

But our most exciting discovery was yet to come: in the form of a big, finger-length and brightly-coloured furry caterpillar. The combination of fu and bright colours usually denotes hairs that are toxic, so you must always handle caterpillars with great care. Some people are more allergic than others. Trevor recognised the caterpillar for what it was before I did – that of the Drinker moth, Euthrix potatoria. The caterpillar feeds on reeds and many other kinds of grasses, and contributes to the common name of this species because it is said to very actively drink from dewdrops. As you can see from the photograph, it was a very handsme caterpillar. The fire-red plume is over the head. It is very hard to tell one end from the other, except when its moving.

 

Drinker Moth caterpillar

Soon this big caterpillar will pupate, and then emerge as a magnificently camouflaged dead leaf-mimicking moth in July.

It was a good day’s hunting!