Petra Wegner / Devon Rex Cat, black-smoke-white coated, portrait, sitting

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) female collecting pollen on scopa, Pentwyn farm SSSI, Gwent...

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) to collect pollen, Pentwyn farm SSSI, Gwent Wildlife Trust,...

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) to collect pollen, Pentwyn farm SSSI, Gwent Wildlife Tr...

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) Pentwyn farm SSSI, Gwent Wildlife Trust, Reserve, Monmouths...

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) Pentwyn farm SSSI, Gwent Wildlife Trust, Reserve, Monmouths...

Phil Savoie / Harebell carpenter bee (Chelostoma campanularum) at 4-5mm long one of Britain's smallest bees, visiting Giant harebell (Campanula latifolia) Pentwyn farm SSSI, Gwent Wildlife Trust, Reserve, Monmouths...

Andy Sands / Two coloured mason bee (Osmia bicolor) collecting leaf mastic to seal nest in old snail shell, Bedfordshire, England, UK, June

Andy Sands / Two coloured mason bee (Osmia bicolor) collecting leaf mastic to seal nest in old snail shell, Bedfordshire, England, UK, June

Phil Savoie / Spined mason bee (Osmia spinulosa) female visiting yellow composite flower, Monmouthshire, Wales, UK, June.

Phil Savoie / Spined mason bee (Osmia spinulosa) female visiting yellow composite flower, Monmouthshire, Wales, UK, June.

Agustin Esmoris / Leafcutter Ant (Acromyrmex striatus) carrying leaf, Pedro Luro, Argentina

Phil Savoie / Red mason bee (Osmia bicornis) visiting Geranium sp flower, Monmouthshire, Wales, UK, May.

Phil Savoie / Red mason bee (Osmia bicornis) female feeding on Cotoneaster flowers, (Cotoneaster sp.) Monmouthshire, Wales, UK, May.

Phil Savoie / Red mason bee (Osmia bicornis) basking, Monmouthshire, Wales, UK, May.

Phil Savoie / Red mason bee (Osmia bicornis) basking, Monmouthshire, Wales, UK, May.

Phil Savoie / Red mason bee (Osmia bicornis), female flying to hardy Geranium flower, Monmouthshire, Wales, UK. May.

Paul Bertner / Leafcutter Ant (Atta colombiana) harvesting plant, Ecuador

Rod Williams / Red mason bees (Osmia bicolor) Mating pair Beverley Court Gardens, Lewisham, London, England, UK April.

Phil Savoie / European wool carder bee (Anthidium manicatum) flying to Purple toadflax (Linaria purpurea) Monmouthshire, Wales, UK, July.

Phil Savoie / Red mason bee (Osmia bicornis) pollinating Chive (Allium schoenoprasum) Wales, UK. June.

Phil Savoie / Red mason bee (Osmia bicornis) pollinating Chive (Allium schoenoprasum) Wales, UK. June.

Phil Savoie / Red mason bee (Osmia bicornis) pollinating Chive (Allium schoenoprasum) Wales, UK. June.

Phil Savoie / Red mason bee (Osmia bicornis) feeding on Common dandelion (Taraxacum officinale) flowers, Monmouthshire, Wales, UK, May.

Phil Savoie / Red mason bee (Osmia bicornis) flying to Bluebell (Hyacinthoides non-scripta) flower, Monmouthshire, Wales, UK, April.

Phil Savoie / European wool carder bee (Anthidium manicatum) flying to Purple Toadflax (Linaria purpurea), Monmouthshire, Wales, UK, July.

Phil Savoie / Red mason bee (Osmia bicornis) flying to flower, Green alkanet (Pentaglottis sempervirens), Monmouthshire, Wales, UK, April.

Phil Savoie / Red mason bee (Osmia bicornis) feeding on Green alkanet (Pentaglottis sempervirens), Monmouthshire, Wales, UK, April.

Phil Savoie / Red mason bee (Osmia bicornis) nesting in wall, Monmouthshire, Wales, UK, April.

Philippe Clement / European orchard bee (Osmia cornuta) emerging from its nest in an insect house, Belgium, March

John Waters / Timelapse of Red mason bees (Osmia rufa) outside a bamboo bug box, Somerset, England, UK. May.

Alan Williams / Red mason bee (Osmia bicornis) male feeding on Thyme (Thymus sp) flowers in garden. Cheshire, UK, April.

James Dunbar / Female red mason bee (Osmia bicornis) gathering pollen from a Buttercup (Ranunculus) flower, Bristol, England, UK, May.

James Dunbar / Female red mason bee (Osmia bicornis) collecting mud to build her nest, Bristol, England, UK, June.

James Dunbar / Red mason bees (Osmia Bicornis) mating on a Dandilion (Taraxacum) flower, Bristol, England, UK, May. Captive.

James Dunbar / Female red mason bee (Osmia bicornis) depositing nectar and pollen into a cell for her offspring, Wales, UK, June.

James Dunbar / Female red mason bee (Osmia bicornis) depositing nectar and pollen into a cell for her offspring, Wales, UK, June.

James Dunbar / Female Leafcutter bee (Megachile willughbiella) cutting a leaf, Bristol, England, UK, September.

James Dunbar / Female Leafcutter bee (Megachile willughbiella) arriving at her nest with a cut leaf, Bristol, England, UK, July.

James Dunbar / Male wool carder bee (Anthidium manicatum) patrolling his territory, Bristol, England, UK, July.

James Dunbar / Wool carder bees (Anthidium manicatum) mating on a Lambs ear (Stachys), Bristol, England, UK, July.

James Dunbar / Male wool carder bee (Anthidium manicatum) attacking a Honey bee (Apis), Bristol, England, UK, July.

Konrad Wothe / Leafcutter ants (Atta cephalotes) cutting leaves, Panguana Reserve, Huanuco Province, Peru.

Kim Taylor / Leaf-cutting bee (Megachile species) on Helenium. Surrey, England, UK, July.

Kim Taylor / Leaf-cutting bee (Megachile species) carrying leaf section. Surrey, England, UK, July.

Kim Taylor / Leaf-cutting bee (Megachile species) carrying leaf section. Surrey, England, UK, July.

Alan Williams / Patchwork leaf-cutter bee (Megachile centuncularis) feeding on Borage (Borago officinalis) flower in garden, Cheshire. UK, July.

Alan Williams / Patchwork leaf-cutter bee (Megachile centuncularis) feeding on Borage (Borago officinalis) flower in garden, Cheshire, UK, July.

Alan Williams / Patchwork leaf-cutter bee (Megachile centuncularis) feeding on Borage (Borago officinalis) flower in garden, Cheshire, UK, July.

Alan Williams / Coast leaf-cutter bee (Megachile maritima) resting on Sea Holly (Eryngium maritimum) carrying cut piece of leaf Dee Estuary shore Hoylake, Wirral, UK, July.

Andy Sands / Blue mason bee (Osmia leaiana) pushing pollen from Fleabane flower into scopa - pollen gathering hairs on abdomen, Oxfordshire, England, UK, August

Andy Sands / Blue mason bee (Osmia leaiana) gathering pollen from Fleabane flower, Oxfordshire, England, UK, August

Andy Sands / Two coloured mason bee (Osmia bicolor) Bee manouvering old snail shell to nest in, Bedfordshire, England, UK, June

Andy Sands / Two coloured mason bee (Osmia bicolor) carrying dead grass to cover nest in old snail shell, Bedfordshire, England, UK, June

Andy Sands / Two coloured mason bee (Osmia bicolor) Bee covering nest in old snail shell with dead grass, Bedfordshire, England, UK, June

Andy Sands / Two coloured mason bee (Osmia bicolor) carrying dead grass to cover nest in old snail shell, Bedfordshire, England, UK, June

Andy Sands / Sharp-tail Bee (Coelioxys elongata) male feeding on nectar from Fleabane flower, Oxfordshire, England, UK, August

Andy Sands / Sharp-tail Bee (Coelioxys elongata) male feeding on nectar from Fleabane flower, Oxfordshire, England, UK, August

Andy Sands / Sharp-tail Bee (Coelioxys elongata) male feeding on nectar from Fleabane flower, Oxfordshire, England, UK, August

MYN / Clay Bolt / Wool carder bee (Anthidium manicatum) female, an introduced species that is commonly found in many sites in the northern portions of the US. Madison, Wisconsin, USA. Meetyourneighbours.net project

MYN / Clay Bolt / Fuzzy-legged leafcutter bee (Megachile melanophaea), males use the mat of hairs on their front legs to cover the eyes of females during mating. Madison, Wisconsin, USA. Meetyourneighbours.net project

MYN / Clay Bolt / Leafcutter bee (Megachile) male sleeping, Pickens, South Carolina, USA, August. Meetyourneighbours.net project

MYN / Clay Bolt / Leafcutter cuckoo bee (Coelioxys sp), Pickens, South Carolina Meetyourneighbours.net project

MYN / Clay Bolt / Leafcutter bee (Megachile gemula), Pickens, South Carolina, USA Meetyourneighbours.net project

MYN / Clay Bolt / Mason bee (Heriades sp) South Carolina, USA Meetyourneighbours.net project

MYN / Clay Bolt / Resin bee (Paranthidium jugatorium) Cleveland, South Carolina, USA, September. Meetyourneighbours.net project

MYN / Clay Bolt / Carpenter mimic leafcutter bee (Megachile xylocopoides) South Carolina, USA, September. Meetyourneighbours.net project

MYN / Clay Bolt / Carpenter mimic leafcutter bee (Megachile xylocopoides) South Carolina, USA, September. Meetyourneighbours.net project

MYN / Clay Bolt / Leafcutter bee (Megachile sp), Madison, Wisconsin, USA, September. Meetyourneighbours.net project

MYN / Clay Bolt / Leafcutter bee (Megachile sp), Madison, Wisconsin, USA, Septemerb. Meetyourneighbours.net project

Clay Bolt / Leafcutter bee (Megachile) female, building her nest, Pickens, South Carolina, USA. May.

Clay Bolt / Leafcutter bee (Megachile) female, building her nest, Pickens, South Carolina, USA. May.

Clay Bolt / Leafcutter bee (Megachile), building her nest, Pickens, South Carolina, USA, May.

Clay Bolt / Leafcutter bee (Megachile) male sleeping, Pickens, South Carolina.

Clay Bolt / Leaf cutter bee (Megachile) male sleeping, Pickens, South Carolina, USA, May.

Clay Bolt / Leaf-cutting cuckoo bees (Coelioxys sp) entering the nest of her host, Pickens, South Carolina, USA, May.

Clay Bolt / Leafcutter bee (Megachile) female returning to her nest with a small circular piece of leaf. Pickens, South Carolina, USA.

Clay Bolt / Leafcutter bee (Megachile) female returning to her nest with a small circular piece of leaf. Pickens, South Carolina, USA.

Clay Bolt / Leafcutter bee (Megachile) female returning to her nest with a small circular piece of leaf. Pickens, South Carolina, USA.

Will Watson / Male Wool-carder Bee (Anthidium manicatum) on Perennial Cornflower (Centaurea monatana), garden, Herefordshire, England.

Chris Shields / Red mason bee (Osmia rufa) illustration

Chris Shields / Red mason bee (Osmia rufa) female, illustration

Chris Shields / Western mason bee (Osmia parietina) illustration

Chris Shields / Large mason bee (Osmia xanthomelana) illustration

Alan Williams / Bee (Coelioxys conoidea) female feeding on Common Fleabane (Pulicaria dysenterica) flower Cheshire, UK, August.

Nick Upton / Gold-fringed mason bee (Osmia aurulenta) nectaring on Rock rose (Cistus pulverulentus) in a garden planted with pollinator attracting flowers, Dungeness, Kent, UK. June.

Nick Upton / Blue mason bee (Osmia leaiana) nectaring on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project, Horfield, B...

Rod Williams / Female Patchwork Leaf-cutter Bee (Megachile centuncularis) On ox-eye daisy Brockley Cemetery, Lewisham, London, UK. June

Rod Williams / Red mason bee (Osmia bicolor) Brockley, Lewisham, London. May.

Andy Sands / Leaf-cutter bee (Megachile ligniseca) female carrying cut leaf section back to bamboo tube in garden bee hotel, Hertfordshire, England, UK, July

Andy Sands / Sharp-tailed bee (Coelioxys conoidea) cleptoparasite of Leaf cutter bee (Megachile maratima) these bees use their sharp tail to slice into the nest of the host leaf cutter bee to lay their eggs inside...

Andy Sands / Blue mason bee (Osmia leaiana) male basking below bamboo tube in bee hotel having recently emerged, garden, Hertfordshire, England, UK, May

Andy Sands / Blue mason bee (Osmia leaiana) nectaring from knapweed flower, Surrey, England, UK, June

Andy Sands / Daisy carpenter bee (Heriades truncorum) Berkshire, England, UK, July

Andy Sands / Sharp-tailed bee (Coelioxys conoidea) cleptoparasite of Leaf cutter bee (Megachile maritima). This species uses their sharp tails to slice into the nests of the host leaf cutter bees to lay their egg...

Andy Sands / Leaf-cutter bee (Megachile ligniseca) male flying around garden bee hotel looking for female, Hertfordshire, England, UK, June

Andy Sands / Two coloured mason bee (Osmia bicolor) bee that nests in old snail shells and then carries bits of twig or vegetation to cover the shell, Buckinghamshire, England, UK, June