Butterfly Islands: April 2019

Tuesday 30 April 2019

Orange Tips and Garlic.

Today the sun struggled to shine but a walk along the wooded banks of Shalfleet Stream was rewarded with the display and heavy scent of wild garlic as the drifts of plants carpeted the woodland floor.In the damp ground near to the stream a good number of Orange Tip butterflies enjoyed the cuckooflowers which are also known as Lady's-smock.

Friday 26 April 2019

Holly Blue Takes Five.

The Holly Blue has visited my garden several times over the last few days.Today this male decided to have a break from its hectic travels by resting in a sunny spot.

Monday 22 April 2019

Dingy Skipper on Display.

A late morning visit to Whiteways today discovered a first Dingy Skipper of the season.Green Hairstreaks were again active and numerous.

The somewhat lack of a natural green background in the photo of the Dingy Skipper was unfortunately due to the illegal practice of Fly-tipping.Someone had scattered a quantity of smashed wooden pallets at the rear of the car park not only creating an eyesore but also a hazard to anyone walking through the grass as nails were protruding from many pieces of wood.

Friday 19 April 2019

Butterflies Respond to the Warm Spring Weather.

The cold weather brought on by a persistent and brisk easterly wind last week has now gone and we are now enjoying sunny and warm days with temperatures in excess of 20 degrees Celsius.The butterflies are beginning to respond with regular sightings of Orange Tip and a big increase in Green Hairstreak at a favourite site at the base of Afton Down in the West Wight.A lunchtime visit to Whiteways today produced a count of six to eight individuals.Unfortunately no other new species were as yet on display.

Thursday 11 April 2019

Spring is Well Under Way.

Following yesterdays sighting of a Green Hairstreak at Whiteways,I was hopeful that another new springtime butterfly may be on display today.It had again developed into a warm and sunny afternoon after a chilly start and it was not long before I came across a Grizzled Skipper enjoying the sun.It seems that with the promise of dry and bright weather for the next few days spring is now well under way.

Wednesday 10 April 2019

Green Hairstreak First to Appear.

A cold morning preceded a warm and sunny afternoon, and it was the Green Hairstreak that appeared as the first resident new emergent today at Whiteways (Afton Down Chalkpit).Their numbers will steadily increase over the next week or two and they will be joined by a host of other spring species.

Wednesday 3 April 2019

Old and New.

The last several days have continued to be cold for this time of the year.However new emergent and old overwintering butterflies are appearing without delay.A first visit this season on Monday last, to a favourite butterfly spot at Whiteways Quarry produced a very active Small White.Today at the same location under showery skies, there was a Small Tortoiseshell enjoying the sunny spells.If the weather warms up soon I am certain that the first new butterflies will be seen here at Whiteways.

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.