Butterfly Islands

Sunday 21 June 2015

First of the Real Summer Butterflies.

Now that summer is almost upon us the first of the 'summer' butterflies are appearing.That means the Meadow Brown is now on the wing and becoming a common sight in our meadows,woods,and on the downs.In fact why this species is so numerous is because of the diverse habitats this butterfly occupies.Perhaps it is often ignored or taken for granted due to its rather dull colouring and high populations in the countryside.However it is a welcome sign of summertime.

Tuesday 16 June 2015

Glanvilles All Over.

The Glanville Fritillary flight season is not all over as the title may suggest but they are all over our coastal cliffs.So it seemed today when I visited one of the Islands' several 'Chines.' This is the natural habitat for our Glanvilles, as these coastal cliffs stretch along the south-west coast of the Isle of Wight. It is here that erosion by the sea and wind cause the sandstone to slip and create different levels of land as the cliffs slide towards the beach.On this landslip, pools and ponds form which in turn provide a home for dragonflies,such as the Keeled Skimmer.
The Glanville Fritillary will be on the wing throughout June.Some individuals are still emerging and can be seen in the company of many 'worn' adults.

Shepherds Chine near to the beach as the
stream cuts through the sandstone cliffs.

Glanville habitat on the landslip

Friday 12 June 2015

A New Skipper.

I have been struggling to find newly emerging species so far this year although many have been reported in Southern England and on the Isle of Wight.So today I was pleased to see a male Large Skipper in my garden.It was happily posing for me in the flower border near to the back door and despite this overcast,humid,and thundery weather too.

Tuesday 2 June 2015

More from Lefkada.

The common butterflies of Lefkada are always a treat to see although numbers of particular species seem to vary from year to year.Several seasons ago Black-veined Whites were very numerous, but during my last two visits to the Island I have seen just the odd one or two.

This year the Clouded Yellow is enjoying high numbers with quite a few helice form females on show together with many conventional coloured individuals.So too the Cleopatra,a very spectacular butterfly and always a common sight.It is seen in the villages and towns feeding from most garden blooms,and also in hill and mountain meadows and olive groves nectaring on the wild flowers.

Spotted Fritillary male.

Spotted Fritillary female.

Clouded Yellow helice female

Black-veined White.

Cleopatra.

Ilex Hairstreak.

Back to Lefkada.

A favourite Greek Island of mine and a visit at this time of year is perfect to enjoy what Lefkada has to offer in the way of butterflies.

Just three kilometres inland from the coastal town of Nidri is the local waterfall.The waters from the Islands' mountains cascade over this pretty waterfall into a rocky ravine.The base of the fall is easily reached from the approach road by a donkey track and here in places the sun can penetrate to the floor of the ravine.In these sunny spots butterflies gather to take the salts and moisture and I was pleased to see several species including Wood White,Nettle Tree Butterflies,Ilex Hairstreak,and Southern White Admiral.

However the prize butterfly was a male Iolas Blue,the largest 'blue' in Europe,and as it turns out not a species recorded on Lefkada or indeed any Greek Ionian Island before.So this sighting is now quoted by Butterfly Conservation,European Interests Group on their Facebook page.

A male Iolas Blue

Wednesday 13 May 2015

Visiting My Favourite Island Sites.

The prospect of a warm and sunny spring day encouraged me to visit a few of my favourite locations on the Island.First stop the National Trust owned Whiteways Quarry now a Viewpoint Carpark, commanding majestic views over our south-western coast.Here at the old quarry, a fantastic assortment of spring butterflies are protected by the shelter of Afton Down and today there was another new species to see.The Small Blue is our smallest butterfly and lives in very compact colonies.The males are usually the first to emerge and can be recognized by the dusting of blue scales on their upper wings.At least three were present today.Also here were a pair of mating Wall Brown butterflies.This species has declined in the UK over the years but can still be seen in good numbers on the Isle of Wight.

Leaving the carpark for a drive south along the coast to Wheelers Bay at Bonchurch, for another look at our Glanville Fritillaries which are the first in the country to appear at this location.Although at times the cloud shaded the sun today I counted four individuals.Many more will emerge along our southern coast during May.

Finally a steep walk up to Bonchurch Down that overlooks the village of Bonchuch and the town of Ventnor.This south facing Down is one of the prime places on the Island for the spectacular Adonis Blue butterfly and a walk along the Downs' steep sides produced a first male Adonis.

Saturday 9 May 2015

Busy in my Local Copse.

A good selection of butterflies today at my local copse,all enjoying the spring flowers.Very belatedly I have seen an Orange Tip for the first time this year.In fact they were out in good numbers although the males were always in a hurry and never seemed to settle close by.However the females had egg laying on their minds and I observed them fluttering from plant to plant getting on with the business.

Thursday 7 May 2015

Our Special One on the Wing.

Following several days of gale force winds along our Island coast,today we had just a lively breeze with plenty of sunshine.An ideal opportunity to see the newly emerged Glanville Fritillaries and an early start this morning produced one very new butterfly seeking a sheltered sunny spot away from the breeze.

Tuesday 5 May 2015

Glanville Fritillary Pupae.

The first adult Glanville Fritillary butterfly of 2015 was seen on the Isle of Wight yesterday, the 4th May and hopefully during this month many more will emerge along our southern coast.

A sight that is not normally seen however is the fritillaries' pupal stage,particularly in the wild. Of course like other species of butterfly some are reared in captivity and sadly we have collectors from the mainland visiting our Glanville sites in the early spring to take caterpillars.So to discover pupae in their natural habitat is very satisfying and uncommon.

Once the full grown caterpillars have dispersed from their communal nest in April each will find a suitable place to pupate.The three pupae or chrysalises found today were attached by their pads of silk to the underside of small stones.Pupa length 13-14mm. This stage will last about three weeks.

Monday 4 May 2015

Yet Another New Arrival.

Now that May is here new species are appearing at a fast rate and today at Whiteways a Brown Argus made a first showing.

The Adonis Blue

The Large Tortoiseshell

It seems the general view on the status of the Large Tortoiseshell in Britain is that it is now extinct as a breeding butterfly.
It is a butterfly of woodland edges and hedgerows that abound in willows,elms,and poplars.These trees are used by the adult to lay its eggs and this single brood appears in July and August.The emerging butterfly then hibernates over the winter in log piles and hollow trees until the next spring.
On the Isle of Wight sightings are more often than not made from early March to April.Have these butterflies overwintered on the Island or have they come from the continent where it is common?
Any sightings made in July/August pose the same question.Another explanation could be that captive-bred releases are responsible.Only the discovery of eggs and caterpillars will probably answer these questions.

I can now report that evidence has been found of breeding just along the coast at Portland in Dorset (June 2020) and again at the same location in the summer of 2021.

The Glanville Fritillary

This elegant butterfly is mainly confined to the crumbling undercliffs and chalk downs of the Isle of Wight.It is also found on the Channel Islands and at one or two isolated colonies on the British mainland.In Britain the Glanville Fritillary is at the extreme north-western edge of its range.On the continent it is readily found in flowery habitats.
Around the southern shores of the Isle of Wight the cliffs constantly erode causing them to slip away and provide perfect conditions for new growths of the butterflies laval host plant,Ribwort Plantain.
The eggs are laid to the underside of the leaves of this plant and normally hatch after about three weeks.The resulting caterpillars live together in communal webs spun over the plantain.In the autumn they hibernate and recommence feeding in the spring,eventually dispersing to prepare for pupation.
The adult butterfly is on the wing from May to the end of June with the female being larger than the male.They will feed on,amongst other things, Birds-foot Trefoil and Thrift.

The Wall Brown

On the Isle of Wight in particular,the Wall Brown is a butterfly of field edges,coastal cliffs and dunes,and rabbit-grazed downland.
The male is territorial and spends much of the time patrolling and basking on the ground.
The female,which lacks the males conspicuous dark sex brand across the forewings,is larger.The undersides of both sexes are beautifully cryptic when at rest.
The Wall Brown generally produces two broods a year,the first from late April until late June and the second from mid-July to mid-September.