Paul Hobson / Pearl-bordered fritillary (Boloria euphrosyne) resting on Bracken (Pteridium aquilinum) frond. North Wales, UK. June.

Paul Hobson / Orange tip butterfly (Anthocharis cardamines) female resting on Cow parsley (Anthriscus sylvestris). Sheffield, England, UK.

Paul Hobson / Marsh fritillary (Euphydryas aurinia) nectaring on Marsh thistle (Cirsium palustre). Lincolnshire, England, UK.

Paul Hobson / Orange tip butterfly (Anthocharis cardamines) male resting on fern. Yorkshire, England, UK. April.

Paul Hobson / Brown hairstreak (Thecla betulae) resting on Hawthorn (Crataegus monogyna). Lincolnshire, England, UK. July.

Paul Hobson / Small Pearl-bordered fritillary (Boloria selene) butterfly resting on frond. Wyre Forest, Worcestershire, England, UK.

David Kjaer / Copper underwing moth (Amphipyra pyramidea) Wiltshire, England, UK, August.

Lorraine Bennery / Blue underwing moth (Catocala fraxini) camouflaged on tree, Loir-et-Cher, France, October.

Kim Taylor / Old lady moth (Mormo maura) hibernating next to hardboard partition, Surrey, England, August.

Kim Taylor / Old lady moth (Mormo maura) Surrey, England, August.

MYN / Dirk Funhoff / Purple emperor butterfly (Apatura iris) adult showing underwing, Mannheim, Germany. Meetyourneighbours.net project.

MYN / Dirk Funhoff / Lesser purple emperor butterfly (Apatura ilia), Mannheim, Germany. Meetyourneighbours.net project.