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This bee was on my garden of Zaragoza, Spain, I caught it few weeks ago, when it exit out of this gallery in the soil. It sizes about 18-20 mm (the same size than a honey bee).

What species can be?




Thanks

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Its a Megachile or Osmia species. More ID is not possible for me.

Regards, Christian

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Thanks!

Is not possible says what of the two genus can be? Megachile or Osmia?

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If Christian can't say I doubt anyone else on this forum can

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Megachile and Osmia are very close, and genus distinction bases on few subile characters only. Most Central European species or species groups can be recognized by general view and impression, but I don't know the mediterranean Apidae so well. Megachile lacks a pulvillus, the small piece between claws, so the species on the photo most probably is a Megachile, but I am not really sure.

Regards, Christian

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Thanks!