Chris Shields / Illustration of British bumblebees (Bombus sp): (Across rows) Adrena fulva,Bombus hypnorum,B. terrestris,B. lacornum,B. pratorum,B. lapidarus,B. ruderatus,B. humilis,B. muscorum,B. barbutellus,B. sylv...

Phil Savoie / Orange tailed mining bee (Halictus rubicundus) feeding on Blackthorn (Prunus spinosa) Monmouthshire, Wales, UK. April.

Phil Savoie / Orange tailed mining bee (Halictus rubicundus) male feeding on Blackthorn (Prunus spinosa) Monmouthshire, Wales, UK. April.

Phil Savoie / Ligated furrow bee (Halictus ligatus) on Apple blossom (Malus sp) Ripon, Wisconsin, USA, March.

Phil Savoie / Orange legged furrow bee (Halictus rubicundus) feeding on Poached egg flower (Limnanthes douglasii), showing pollen baskets on hind legs, Monmouthshire, Wales, UK. March.

Phil Savoie / Orange legged furrow bee (Halictus rubicundus) feeding on Ornamental onion (Allium) flowers, Monmouthshire, Wales, UK. May.

Scott Leslie / Sweat Bee (Halictus sp) feeding on Lupine (Lupinus sp) flower nectar, Maine

Andy Sands / Bronze furrow bee (Halictus tumulorum) resting in flower after a shower of rain, Oxfordshire, England, UK, June

MYN / Clay Bolt / Sweat bee (Halictus poeyi), South Carolina, USA, August. Meetyourneighbours.net project

MYN / Clay Bolt / Sweat bee (Halictus poeyi), exposing mouthparts, South Carolina, USA, August. Meetyourneighbours.net project

Alan Williams / Sweat bee (Halictus rubicundus) feeding on Knapweed (Centaurea nigra) flower in meadow Cheshire, UK, August.

Nick Upton / Sweat bee (Halictus cf. brunnescens) female foraging on Cretan organo (Origanum onites), Lesbos/ Lesvos, Greece.