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Has anyone any idea on the family of this small bee? It spent most of the time on the ground, constantly moving its wings and walking very fast. It was photographed last august in Catalonia.

Thanks in advanced,

Aleix

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em recorda una mica al g?nere Megachile, per? d?aquest ordre no tinc ni idea, calcule que ac? algu et dir? de seguida, salut Crec que a l?Universitat de Salamanca hi ha un especialista en himenoptera

it seems Megachile to me, but I can?t be sure, I think there?s an Hymenoptera specialist in Salamanca?s university, I?ll wait for any reply too

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Moltes gr?cies, s? que s?n dif?cils, de moment ni tans sols he pogut esbrinar la fam?lia!

Thank you very much, I know they are difficult, so far I even haven't been able to find out the family!

Aleix