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What on earth are these invertebrates?!? I haven’t got a clue – a situation which is exciting and frustrating in equal measures!
I found four specimens on Wednesday from a wetland site on the edge of Pevensey Levels, East Sussex. I didn’t see any in the field but started noticing them as I was identifying my beetle specimens. The first was loose in a tube with two Datonychus melanostictus and I assumed it was bycatch, rather than a parasite of the weevils. But I then found one attached by its mouthparts to the mid-femur of a Protapion fulvipes, and two more attached to the hind femur of a Sitona lepidus.
I don’t think these things can be common or I’d have noticed them before. Maybe I’ve seen them before with eyes blinkered to all but beetles and just disregarded them? For the time being I will call them Weevil-thigh Lice. I would dearly like to give them a scientific name and unlock whatever knowledge exists about them. But the only way I can think to go about identifying them is to stick the photos up here and ask – do you know what they are?