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Thank you !
I am not a specialist and they are very similar to me. All individuals are photographed one day in one place. However, in all the pictures - different individuals.
Did I correctly understand that in the photo number 1 - Myopa cf. tessellatipennis, and on photos 5 and 6 - Myopa cf. testacea? Photo № 2-3, №4 - Myopa sp. ?
And one more question: what details of the structure to pay attention when photographing?