Nick Upton / Leafcutter / Rose-cutter bee (Megachile willughbiella) lands at its nest in a Bamboo tube in an insect hotel near several nests she has completed and some Potter wasp (Ancistrocerus sp.) nests, Wiltsh...

Konrad Wothe / Yellowjacket (Paravespula vulgaris) wasp feeding on fruit, Germany

Nick Upton / Recently completed Leafcutter / Rose-cutter bee (Megachile willughbiella) and Potter wasp (Ancistrocerus sp.) nests in Bamboo tubes in an insect hotel, Wiltshire, UK, July.

Rod Williams / European potter wasp (Ancistrocerus gazella) Sutcliffe Park Nature Reserve, Eltham, London, England, UK. August.

Andy Sands / Mason wasp (symmorphus gracilis) on sandy bank of old quarry, Oxfordshire, England, UK, August

Nick Upton / Insect hotel with drilled logs and bundles of bamboo stems, some with partially completed mud nests of Mason wasps wasps (Ancistrocerus sp), garden, Gloucestershire, UK, May.

Andy Sands / Mason wasp (Symmorphus gracilis) collecting mud for nest building, Oxfordshire, England, UK, September

Chris Shields / Potter flower bee (Anthophora retusa) illustration

Andy Sands / Mason wasp (Ancistrocerus gazella) dormant in flower during cold weather conditions, Surrey, England, UK, June

Andy Sands / Heath potter wasp (Eumenes coarctatus) female using her mandibles to collect mud for nest building, Surrey, England, UK, August

Andy Sands / Mason wasp (Ancistrocerus scoticus) female collecting mud to build nest, Cornwall, England, UK, September

Andy Sands / Heath potter wasp (Eumenes coarctatus) female using her mandibles to collect mud for nest building, Surrey, England, UK, August