David_W_1971: Osmia bicornis (rufa) in cop.
David_W_1971: O. bicornis male
David_W_1971: osmia-rufa_1dw
David_W_1971: Osmia bicornis male
David_W_1971: Osmia bicornis female in weigela flower
David_W_1971: Osmia bicornis female
David_W_1971: Osmia bicornis (=rufa) fem sealing nest
David_W_1971: osmia-leaiana_2dw
David_W_1971: prob. Osmia leaiana (poss caerulescens) male
David_W_1971: Osmia leaiana female
David_W_1971: Osmia leaiana female
David_W_1971: Osmia leaiana female
David_W_1971: Osmia leaiana
David_W_1971: Osmia leaiana
David_W_1971: Osmia caerulescens female
David_W_1971: Osmia caerulescens, female
David_W_1971: red mason bee, Osmia bicornis, male
David_W_1971: blue mason bee, Osmia caerulescens, female
David_W_1971: Osmia bicolor, female
David_W_1971: Osmia bicolor, female
David_W_1971: red mason bee, Osmia bicornis, female
David_W_1971: red mason bee, Osmia bicornis
David_W_1971: red mason bee, Osmia bicornis, male