White-letter Hairstreak and Ectoedemia minimella

There were a few sunny spells this morning and, during one of them, I was lucky enough to be able to find this White-letter Hairstreak (Satyrium w-album) on a local elm.
I also received a letter from Harry Beaumont today:
A specimen from my excursion to Timble Ings, last Saturday, turns out to be Ectoedemia minimella rather than the Stigmella sp. that I had suspected.

Assembling Northern Eggars

On Friday 3rd June 2011 I discovered that a female Northern Eggar had emerged from a caterpillar found on Barden Moor last year.
Having read about "assembling" I took the moth up to Baildon Moor in the late afternoon sunshine and placed it carefully on a clump of bilberry.
Within a couple of minutes, a male arrived swiftly followed by another, and then another.
The two surplus males soon did the decent thing and allowed the first arrival to complete his courtship.

Another one bites the dust............

Everything seemed to be going well for this little caterpillar of the Pale Brindled Beauty (Phigalia pilosaria) found on an Ash near Grassington.
A cocoon has now appeared which belongs to one of the Microgastrinae group of parasitoids.
It is likely to be a Glyptapantales sp. or perhaps Protapantales with Cotesia a fainter possibility.
Hopefully time will tell.

Dotted Border pupates

A caterpillar that I found feeding on oak in Hawksworth Wood on the 14th May has now pupated.
The distinctive colouration of the pupa has now enabled me to identify the caterpillar as that of the Dotted Border (Agriopis marginaria).
Now the challenge is to try and keep it in the hope of the adult being the flightless female which I have never seen.

The Grinning Egg

I thought that I had found some moth eggs on the undersurface of an elm leaf this morning but then realised that I had been caught out like this before!

Remember the story of the Ova with smiley faces?

Ichneumon pupa ex Dun-bar larva

I have been rearing a caterpillar of the Dun-bar (Cosmia trapezina) found on Beech at Hawksworth wood on 14th May 2011.

Yesterday, I looked inside its container to find that the caterpillar's innards are now contained within the pupa of an ichneumon wasp. Mark Shaw has since identified this for me as Scirtetes robustus.

It will be fascinating to see what the resultant parasitoid imago looks like.

The Oxford Bee Company and Orange Tips

Very blustery weather has predominated over the last couple of days but the continuing bright sunshine is appreciated by most of us.

There is a profusion of Garlic Mustard (Alliaria petiolata) growing by the roadsides and many of these stems are now dotted with the bright orange eggs of the Orange Tip butterfly.

Red Mason Bees (Osmia rufa) are busy cementing up the cardboard tubes of my Oxford Bee Company nesting box.