Tag Archives: Ireland

The Undergrowth Comes Alive

The sunlight, and longer days are warming the valleys of Wicklow. The smaller wildlife, on which all others depend, are starting to steal the show. While strolling in a garden or along a village lane you might see a scarlet-coloured fluttering object drop from the sky and out of sight. It might appear a little later, but if not, look on the low-growing foliage for the beautiful and aptly-named Ruby Tiger moth (Phragmatobia fuliginosa), which emerges from its pupal coccoons in April and May, to take to the sky. This species employs bright colouring to warn of distasteful toxins in its body.

Ruby Tiger Moth lying low in a meadow. Beneath the forewings is a searing red underwing only usually discernible when the moth is in flight.

At the other end of the colour spectrum is the Holly Blue butterfly (Celastrina argiolus), a stunning little spring butterfly that loves to bask on wide hedgerow leaves. This butterfly likes woodland glades and narrow laneways, aswell as gardens.

Holly Blue butterfly - you can tell this one is female by the narrow black margins on the outer edges of the forewings: males have much thicker markings, effectively black patches.

If you are very lucky you might even be fortunate enough to see a mating pair. Mating is a quiet and symmetrical affair. The lovers rest, joined by their abdomens, but facing in completely opposite directions. They only move to angle their wings in the sun.

A mating pair of Holly Blues. Behind them is a dangerous-looking, but harmless and extremely handsome Syrphus hoverfly.

However, the sunlit leaves are not necessarily safe places. Predatory invertebrates brazenly wait, motionless in the undergrowth, for unwitting visitors to arrive to provide them with lunch. Crab spiders wait on the leaves, and will soon be hiding among the blossoms.

Flower Crab Spider (Misumena vatia), waiting for prey. Crab Spiders get their names from their habit of grasping prey with their two long pairs of forelegs, while balancing on their two shorter pairs of hind legs, as this one was doing.

However, many small creatures are fortunate enough not to hide on leaves. Your best chance of seeing the Early Thorn moth (Selenia dentaria) is now in April, usually perched on timber door or window frames, and garden sheds. The first generation male, pictured, is perfectly coloured to match dark timber, and dry leaves in the hedgerows.

A male Early Thorn moth perched on a door frame.

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!

 

The Naturalists

Today I had the great honour of meeting Ireland’s most famous naturalist, Éamonn De Buitléar, and he kindly agreed to pose for a photograph. He is a famous wildlife documentary film-maker (and author) but always preferred to be behind the camera instead of in front of it, although he is a charismatic presenter. De Buitléar has contributed to many documentaries besides his own, including images of migrating eels to David Attenborough’s The Trials of Life TV series. His most recent TV series, A Life in the Wild, is one of the most beautifully filmed and interesting documentaries I have ever seen, and is also a quirky biography filled with his globe-trotting adventures.

Éamonn De Buitléar when I met him today.
Cover of DVD series A Life in the Wild

 

I also met Angus Tyner, one of Ireland’s foremost moth experts, and the “go-to guy” most government scientists ask for advice on moths. He is a devoted specialist when it comes to moths, but also has a general interest in wildlife and a terrific knowledge. Today he was championing moths and other wildlife as part of the Newcastle Expo. The moths in the photo were caught with a light trap last night. Early Thorn and Hebrew Character moths, among others, can be seen here. Angus runs a number of websites and a major moth-recording website at www.mothsireland.com