Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly male, Hohe Tauern National Park, Austria

Pete Oxford / Gossamer-winged Butterfly (Lycaenidae), Yasuni National Park, Amazon, Ecuador

Martin Willis / Victoria's Riflebird (Ptiloris victoriae) male displaying for female on vine lek, Malanda, Queensland, Australia

Silvia Reiche / Small Copper (Lycaena phlaeas) butterfly on Heather (calluna vulgaris), Noord-Brabant, Netherlands

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly female, Hohe Tauern National Park, Austria

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly female, Hohe Tauern National Park, Austria

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly on a blade of grass, Hohe Tauern National Park, Austria

Silvia Reiche / Mazarine Blue (Cyaniris semiargus) butterfly on English Bluebell (Hyacinthoides nonscripta), Hohe Tauern National Park, Austria

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on orchid, Hohe Tauern National Park, Austria

Silvia Reiche / Mazarine Blue (Cyaniris semiargus) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on orchid, Hohe Tauern National Park, Austria

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on orchid, Hohe Tauern National Park, Austria

Silvia Reiche / Silver-studded Blue (Plebejus argus) butterfly on Cross-leaved Heath (Erica tetralix) flowers, Noord-Brabant, Netherlands

Silvia Reiche / Silver-studded Blue (Plebejus argus) butterfly on Cross-leaved Heath (Erica tetralix) flowers, Noord-Brabant, Netherlands

Silvia Reiche / Silver-studded Blue (Plebejus argus) butterfly on Heather (Calluna vulgaris), Noord-Brabant, Netherlands

Silvia Reiche / Silver-studded Blue (Plebejus argus) butterfly on Heather (calluna vulgaris), Noord-Brabant, Netherlands

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on Cross-leaved Heath (Erica tetralix) flowers, Drenthe, Netherlands

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on Cross-leaved Heath (Erica tetralix) flowers, Drenthe, Netherlands

Silvia Reiche / Cranberry Blue (Vacciniina optilete) butterfly on Heather (Calluna vulgaris), Drenthe, Netherlands

Piotr Naskrecki / Common Woolly Legs (Lachnocnema bibulus) and ants collecting honeydew produced by aphids feeding on cycad, Modjadji Cycad Reserve, Limpopo, South Africa

Piotr Naskrecki / Butterfly (Oxylides faunus), Mamang River Forest Reserve, Ghana

Silvia Reiche / Brown Argus (Aricia agestis) butterfly, Eifel, Germany

Silvia Reiche / Little Blue Butterfly (Cupido minimus), Eifel, Germany

Silvia Reiche / Small Copper (Lycaena phlaeas) butterfly, Saint-Jory-las-Bloux, Dordogne, France

Silvia Reiche / Brown Argus (Aricia agestis) butterfly, Saint-Jory-las-Bloux, Dordogne, France

Silvia Reiche / Little Blue Butterfly (Cupido minimus) group drinking from the ground, Saint-Jory-las-Bloux, Dordogne, France

Silvia Reiche / Adonis Blue (Lysandra bellargus) and Little Blue Butterflies (Cupido minimus) drinking from the ground, Saint-Jory-las-Bloux, Dordogne, France

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly on grass, Germany

Silvia Reiche / Little Blue Butterfly (Cupido minimus) on bud, Germany

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly, Germany

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly, Germany

Silvia Reiche / Purple-edged Copper (Lycaena hippothoe) butterfly, Germany

Silvia Reiche / Violet Copper (Lycaena helle) butterfly, Germany

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly on thistle, St. Nazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on bud, St. Nazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on grass, St. Nazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly pair mating, St. Nazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly, St. Nazaire le Desert, France

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly on grass, St. Nazaire le Desert, France

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly on grass, St. Nazaire le Desert, France

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly on grass, St. Nazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on thistle, St. Lazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on grass, St. Lazaire le Desert, France

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on thistle, St. Lazaire le Desert, France

Silvia Reiche / Damon Blue (Agrodiaetus damon) butterfly on thistle bud, Netherlands

Silvia Reiche / Damon Blue (Agrodiaetus damon) butterfly on thistle bud, Netherlands

Silvia Reiche / Damon Blue (Agrodiaetus damon) butterfly on grass, Netherlands

Silvia Reiche / Short-tailed Blue (Cupido argiades) butterfly on flower, Netherlands

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly, Netherlands

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly, Netherlands

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly with open wings, Netherlands

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly on bramble stalk, Netherlands

Silvia Reiche / Chapman's Blue (Agrodiaetus thersites) butterfly drinking from very small puddle, Netherlands

Silvia Reiche / Ilex Hairstreak (Satyrium ilicis) butterfly pair mating, Netherlands

Silvia Reiche / Chapman's Blue (Agrodiaetus thersites) butterfly on lavender flower, Netherlands

Silvia Reiche / Chapman's Blue (Agrodiaetus thersites) butterfly caught by Yellow Crab Spider (Thomisus onustus), Netherlands

Silvia Reiche / Chapman's Blue (Agrodiaetus thersites) butterfly pair, Netherlands

Rob Brown / Gossamer-winged Butterfly (Lycaenidae) in Mountain Buttercup, Mount Owen, Kahurangi National Park, New Zealand

Ingo Arndt / Adonis Blue (Lysandra bellargus) butterfly on grass, Europe

Ingo Arndt / Adonis Blue (Lysandra bellargus) butterfly on flower, Europe

Thomas Marent / Violet Copper (Lycaena helle) butterfly, Switzerland

Thomas Marent / Green Hairstreak (Callophrys rubi) butterfly, Switzerland

Thomas Marent / Green Hairstreak (Callophrys rubi) pair, Switzerland

Thomas Marent / Common Blue (Polyommatus icarus) butterfly female, Switzerland

Thomas Marent / Common Blue (Polyommatus icarus) butterfly male, Switzerland

Piotr Naskrecki / Gossamer-winged Butterfly (Lycaenidae) caterpillar, tolerated by Weaver Ants in exchange for honeydew, Guinea, West Africa

Piotr Naskrecki / Green Tree Ant (Oecophylla smaragdina) workers guard Gossamer-winged Butterfly (Lycaenidae) caterpillar rear awaiting honeydew, Australia

Ross Hoddinott / Silver studded blue (Plebejus argus) butterfly. Cornwall, UK.

Ross Hoddinott / Silver studded blue (Plebejus argus) butterfly. Cornwall, UK.

Robin Chittenden / Long tailed blue butterfly {Lampides boeticus} UK, threatened

Silvia Reiche / Green Hairstreak (Callophrys rubi) side view, on flower

Jan Vermeer / Silver-studded Blue (Plebejus argus) butterfly on plant, Europe

Jan Vermeer / Silver-studded Blue (Plebejus argus) two butterflies on flowering Heath, Europe

Jan Vermeer / Silver-studded Blue (Plebejus argus) two butterflies on flowering Heath, Europe

Mark Moffett / Imperial Hairstreak (Jalmenus evagoras) caterpillar tended by ant (Iridomyrmex anceps)

Christian Ziegler / Left to right, from top: Blue Helicopter Damselfly (Megaloprepus coerulatus), Mydas Fly (Mydidae), Saw-nosed Planthopper (Cathedra serrata), Metalmark (Lymnas pixe), Grasshopper (Proscopia panamensis)...

Silvia Reiche / Alpine Blue (Albulina orbitulus) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Alpine Blue (Albulina orbitulus) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Common Blue (Polyommatus icarus) butterfly

Silvia Reiche / Chalk-hill Blue (Lysandra coridon) butterfly on grass, St. Lazaire le Desert, France

Silvia Reiche / Damon Blue (Agrodiaetus damon) butterfly on thistle bud, Netherlands

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly on bramble stalk, Netherlands

Silvia Reiche / Chapman's Blue (Agrodiaetus thersites) butterfly caught by Yellow Crab Spider (Thomisus onustus), Netherlands

Duncan Usher / Common Blue (Polyommatus icarus) butterfly two butterflies silhouetted against setting sun, Europe