Brian Bevan / Pantaloon bee (Dasypoda hurtles) entering burrow with pollen, Bedfordshire, England, UK, August.

Dave Bevan / Female Pantaloon bee (Dasypoda hirpites) returning to burrow, Bedfordshire, England, UK, July.

Heather Angel / Solitary bee (Apoidea) feeding on Crocus (Crocus korolkowii), covered in pollen. Ansob Pass, Tajikistan. April.

Kim Taylor / Hairy-legged mining bee (Dasypoda hirtipes) female collecting pollen from Smooth hawksbeard (Crepis capillaris) flowers. Surrey, England, UK, July.

Kim Taylor / Hairy-legged mining bee(Dasypoda hirtipes) outside her burrow. Surrey, England, UK, July.

Kim Taylor / Solitary bee (Apoidea) drinking sweat from photographer's finger, Bulgaria, July.

Andy Sands / Pantaloon bee (Dasypoda hirtipes), female, excavating nesting tunnel in loose sand. Oxfordshire, England. UK. July.

Andy Sands / Pantaloon bee (Dasypoda hirtipes), female, excavating nesting tunnel in loose sand. Oxfordshire, England. UK. July.

Brian Bevan / Pantaloon bee (Dasypoda hirtipes) digging nesting burrow, Bedfordshire, UK, September.