Brown hairstreak butterfly (thecla betulae) close,up of rear wing showing tail, oxfordshire, uk

uk britain lycaenidae terrestrial horizontals invertebrate blooded animals tail brown horizontal beauty arthropods patterned wildlife patterns beautiful nature summer united kingdom cold insecta close up insects lepidoptera entomology diurnal wood english arthropod wing zoology insect betulae oxfordshire insect invertebrates developed countries hairstreak ectotherms british european arthropoda bugs butterflies developed country butterflies england uk pattern ectotherm butterfly bug scales rear butterfly winged fauna woodland thecla animal europe ectothermic