Butterfly Islands: August 2013

Thursday, 29 August 2013

Drifts of Fleabane.

Maybe due to the prolonged summer weather we have enjoyed over the last two months,the drifts of fleabane are extensive in our local hedgerows and woods.This has continued to attract the summer butterflies in good numbers.

Yesterday at Walters Copse,Newtown it seemed most of the high summer butterflies were on show and sightings of the Clouded Yellow have certainly increased.The Large and Small White continues to be prolific and in the copse I was treated to a male Chalk-hill Blue that had no doubt wandered from the Downs.

Saturday, 24 August 2013

A Small Diversion

Although I have never taken an interest in moths there are sometimes occasions when a sighting will change that.Today in my garden I saw on the Hemp-agrimony, three Jersey Tiger moths enjoying its nectar.It is something on the Island to see this moth and three at one time is a treat.The underwing is normally red in colour but there are yellow underwings and rarely black.I was lucky enough to see the normal red and a yellow form.

Sunday, 11 August 2013

More Summer Sweetness for Butterflies

The warm summer weather continues and now that the fleabane is in flower there are plenty of butterflies enjoying it's nectar.Around Walters Copse on the Island I came across numerous pristine Peacock on the plant as well as Brimstone,Painted Lady,Small Copper,Common Blue,Brown Argus,Whites,Silver-washed Fritillary, Meadow Brown,,and a Clouded Yellow.

Friday, 9 August 2013

More Painted Ladies at Wheelers Bay

With buddleia bushes now in full bloom at Wheelers Bay,it is attracting many butterflies to feed on the nectar rich flowers.Today on a sunny but breezy afternoon several Painted Ladies could be seen on the bushes as well as a selection of Red Admirals,Small Tortoiseshells,Commas,and White butterflies.Maybe a Monarch will show up soon,swept in by a south-westerly wind.

Monday, 5 August 2013

Summer Sweetness for Butterflies.

In the copse and hedgerows the fleabane is now in flower.It is a great favourite with many butterflies as they flock to drink its nectar

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.