Pests or not?

in Fruit & veg
Hi. Does anyone know whether these black insects should be dealt with and if so any advice? There are dozens and more on squash and poppy flowers. Flyers as well! Wife want too impressed with them invading the washing line 😄 thanks.

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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Think hard before 'dealing with' they're all part of the cycle of life and if you spray those the beneficial insects will die as well
In the sticks near Peterborough
In the sticks near Peterborough
In the sticks near Peterborough