Robert Thompson / Keeled skimmer dragonfly (Orthetrum coerulescens) male resting on Erica flower,, Leitrim Lodge, Mourne Mountains, Co. Down, Northern Ireland. July

Robert Thompson / Keeled skimmer dragonfly (Orthetrum coerulescens) male resting on Erica flower, Leitrim Lodge, Mourne Mountains, Co. Down, Northern Ireland. July

Andy Sands / Keeled skimmer dragonfly (Orthetrum coerulescens) Perched on reed, Oxfordshire, England, UK, July

Nick Upton / Keeled skimmer dragonfly (Orthetrum coerulescens) female resting on plant stem, Stoborough heath, Dorset, UK, July.

Stephen Dalton / Keeled skimmer dragonfly (Orthetrum coerulescens) female. Menorca. May.

Jussi Murtosaari / Keeled skimmer (Orthetrum coerulescens) adult male, Rutajoki river, Leivonmaki, Joutsa, Keski-Suomi, Lansi- ja Sisa-Suomi / Central and Western Finland, Finland. July

Jussi Murtosaari / Keeled Skimmer (Orthetrum coerulescens) male, Joutsa (formerly Leivonmaki), Finland, August.

Colin Varndell / Freshly emerged female Keeled skimmer (Orthetrum coerulescens) at rest. Dorset, UK July

Ross Hoddinott / Keeled skimmer (orthetrum coerulescens) female covered in dew and roosting on cross-leaved heath (Erica cinerea), Dunsdon, Devon, UK. August .

Jussi Murtosaari / Keeled skimmer dragonfly (Orthetrum coerulescens) male. Leivonmaki National Park, Finland. June.

Jussi Murtosaari / Keeled skimmer dragonfly (Orthetrum coerulescens) female resting on stem. Joutsa, Central Finland. June.