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Derek Binns

@arnoldtortoise

Amateur naturalist - parasitic wasps (and other tiny insects) specialising in UK Trichogrammatidae and Mymaridae. All posts are my own finds, and all are found in Sussex (unless otherwise stated). Born at 317.68ppm.

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10.11.2023
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Latest posts by Derek Binns @arnoldtortoise

Let's share the washing up ... I'll do the saucepans, you can do the gravy boats!
Character is one thing, but this is ridiculous!

09.03.2026 17:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A tiny circular yellow-green plant growing out of a grey rocky medium. The plant has a dotted colouration, and an oval hole in the middle through which a new pair of leaves is visible.

A tiny circular yellow-green plant growing out of a grey rocky medium. The plant has a dotted colouration, and an oval hole in the middle through which a new pair of leaves is visible.

A tiny circular yellow-green plant growing out of a grey rocky medium. The plant has a dotted colouration, and an oval hole in the middle through which a new pair of leaves is visible.

A tiny circular yellow-green plant growing out of a grey rocky medium. The plant has a dotted colouration, and an oval hole in the middle through which a new pair of leaves is visible.

Sown two years ago on the 8th March 2024, Lithops lesliei f. albinica is now 10 mm across and forming a new pair of leaves. #Lithops

07.03.2026 16:43 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Endless fascination in a world of wonder. There is so much that we have no idea about until we look down a microscope.

07.03.2026 16:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

They make a good couple. Each needs the other to balance out their oddity. There was a risk that each was being reduced to a clichΓ© when they were single, but they have become more than the sum of their parts as a couple.
#TheArchers

07.03.2026 16:32 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Looking forward to it. Should be quite something.

07.03.2026 16:24 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Surely the Aldridge's have been quietly imploding for decades? Brian's serial shenanigans, Adam's emigration, Debbie's emigration, Kate's emigration to Planet Kate, Alice's need for anaesthetic, Ruairi's feelings for Julia. This all points to a family that runs away from a problem.
#TheArchers

07.03.2026 09:12 πŸ‘ 6 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Many happy belated returns!

06.03.2026 14:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

As John Cooper Clarke reciting Beasley Street?

04.03.2026 09:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
A small bee is sunning itself on a strap-like green leaf. The bee is facing upwards and to the right of the picture. It has a collar of yellow hairs on its brown thorax, and it has a striped brown abdomen.

A small bee is sunning itself on a strap-like green leaf. The bee is facing upwards and to the right of the picture. It has a collar of yellow hairs on its brown thorax, and it has a striped brown abdomen.

The glorious sunshine has brought forth Yellow-legged mining bees (Andrena flavipes) around the hyacinths in the garden.
#Bees

03.03.2026 12:04 πŸ‘ 14 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Does this mean Evgeny Lebedev will soon be moving to Ambridge?
(niche, but some will get it)
#TheArchers

02.03.2026 12:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
photograph of a small tan dog sitting on a large black gorilla

photograph of a small tan dog sitting on a large black gorilla

Post a pic you took, no context, to bring some zen to the feed.

01.03.2026 10:01 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
An oval succulent plant. It has two leaves that form the oval. The leaf-pair is splitting horizontally to reveal an emerging new leaf-pair that will take over. The surface of the leaf-pair is covered in bright red dots. The plant is seen growing out of a grey stone chip medium.

An oval succulent plant. It has two leaves that form the oval. The leaf-pair is splitting horizontally to reveal an emerging new leaf-pair that will take over. The surface of the leaf-pair is covered in bright red dots. The plant is seen growing out of a grey stone chip medium.

One year on from sowing, a Lithops julli cv Kikushogyoku is now 8mm long and looking good.
#Lithops

01.03.2026 09:45 πŸ‘ 61 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

Windowsill of an unheated room? If the windowsill has bright light then it matters less that they are warm.

28.02.2026 15:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

They look fine. Most of mine have looked just like this at this stage. Trust them, they know what they're doing!
#Lithops

28.02.2026 15:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We don't know if Dane thinks at all.
#TheArchers

27.02.2026 15:20 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I doff my cap to you sir!

26.02.2026 13:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A bright yellow Ladybird with black spots. It is seen on a pale green leaf. The ladybird is facing the camera.

A bright yellow Ladybird with black spots. It is seen on a pale green leaf. The ladybird is facing the camera.

A beautiful 22-spot Ladybird seen in the garden yesterday.

#Coccinellidae

26.02.2026 12:54 πŸ‘ 18 πŸ” 5 πŸ’¬ 3 πŸ“Œ 0

Yes, but Susan has form when it comes to taking against someone.
#TheArchers

25.02.2026 17:56 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

She's Susan ... what more reason do you need?
#TheArchers

25.02.2026 17:42 πŸ‘ 4 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Hmmm ... parasitoids are letting you down, they need to up their game!

25.02.2026 16:40 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Sounds like you've got a potential host plant to search!

25.02.2026 15:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image Post image

I find them on a bay tree in the garden, also on several trees in the woods. Parasitised ones look distinctive

25.02.2026 15:18 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Side view of a black-and-white striped jumping spider sitting on a brick. Its head end is to the left.

Side view of a black-and-white striped jumping spider sitting on a brick. Its head end is to the left.

Second day of glorious sunshine, and the Jumping Spiders are romping about on the south-facing brick wall of the house. The contrast from two days ago is vast!

#Salticidae

25.02.2026 15:06 πŸ‘ 23 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

Good find! Next step is to find their hosts: Soft Scale is the usual host for Microterys in my neck of the woods. Easy to identify Scales that have been parasitised. Then you can rear out the wasp from the host and get certainty of the relationship.

25.02.2026 15:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

... Wednesday

25.02.2026 08:44 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'd plump for M.hortulanus!

24.02.2026 17:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I think so ... trying to remember what M.tessellatus looks like.

24.02.2026 17:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Looks good. Cracking shot as well!

24.02.2026 16:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Frontovertex less than 1.5x as wide as scape width and more than 4x diameter of ocellus, ovipositor hardly exserted is the specific for M.hortulanus.

24.02.2026 16:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Ideally you need a lateral view of the antennae to be sure. M.tricoloricornis is white all round on F4-6, whereas M.seyon is white on top of F4-6 and a bit shady underneath.

24.02.2026 15:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0