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Hi Robert,

Your last posts removed all doubts: male Bibio clavipes.

You can see
* the terminal spine on tibia 1 (-> Bibio)
* the typical slender base of femur 3 (-> clavipes or lepidus)
* the stigma which does not enter the costal cell (9-> clavipes)

Why are you so bothered about the black legs ?
Legs are black in clavipes.

Thanks


Theo