Silvia Reiche / Cabbage White (Pieris rapae) butterfly on flower, Netherlands

Pete Oxford / Galapagos Sulphur Butterfly (Phoebis sennae marcellina) feeding on cactus flower, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly, Eifel, Germany

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 12 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Sea Thrift (Armeria maritima), Hoogeloon, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Meadow Clary (Salvia pratensis), Hoogeloon, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Sea Thrift (Armeria maritima), Hoogeloon, Netherlands

Thomas Marent / Moth (Melese sp), Tatama National Park, Colombia

Thomas Marent / Ghost Yellow (Eurema albula) butterfly, Santa Maria, Colombia

Thomas Marent / Frosted Mimic-white (Lieinix nemesis) butterfly, Tatama National Park, Colombia

Thomas Marent / Pierid Butterfly (Melete sp) pair, Santa Maria, Colombia

Thomas Marent / Apricot Sulphur (Phoebis argante) butterflies, Santa Maria, Colombia

Thomas Marent / Pierid Butterfly (Hesperocharis marchalii), Santa Maria, Colombia

Heidi & Hans-Juergen Koch / Pierid Butterfly (Phoebis sp), native to Peru

Peter Schwarz/ BIA / Mountain Clouded Yellow (Colias phicomone) female, Valais, Switzerland

Peter Schwarz/ BIA / Eastern Bath White (Pontia edusa) butterfly, Dalmatia, Croatia

Peter Schwarz/ BIA / Black-veined White (Aporia crataegi) butterfly, Dalmatia, Croatia

Peter Schwarz/ BIA / Orange Tip (Anthocharis cardamines) butterfly compound eye, Hesse, Germany

Martin Grimm/ BIA / Leopard Lacewing (Cethosia cyane) and Common Grass Yellow (Eurema hecabe) butterflies feeding at mineral lick, Kaeng Krachan National Park, Thailand

Steve Gettle / Clouded Sulphur Butterfly (Colias philodice), North America

Steve Gettle / Clouded Sulphur Butterfly (Colias philodice), North America

Peter Schwarz/ BIA / Wood White (Leptidea sinapis) butterfly on Cuckoo Flower (Cardamine pratensis), Hesse, Germany

Peter Schwarz/ BIA / Orange Tip (Anthocharis cardamines) male butterfly on Cuckoo Flower (Cardamine pratensis), Hesse, Germany

Peter Schwarz/ BIA / Black-veined White (Aporia crataegi) butterfly on Sainfon (Onobrychis viciifolia), Hesse, Germany

Silvia Reiche / Cabbage Butterfly (Pieris brassicae), Netherlands

Silvia Reiche / Cabbage Butterfly (Pieris brassicae) pair, Netherlands

Silvia Reiche / Cabbage Butterfly (Pieris brassicae) caterpillar on cabbage, Netherlands

Silvia Reiche / Green-veined White (Pieris napi) butterfly, Netherlands

Silvia Reiche / Provence Orange Tip (Anthocharis euphenoides) butterfly, Luberon Valley, France

Silvia Reiche / Green-veined White (Pieris napi) butterfly, Netherlands

Silvia Reiche / Clouded Yellow (Colias croceus) butterfly, Netherlands

Silvia Reiche / Pale Clouded Yellow (Colias hyale) butterfly, Dordogne, France

Silvia Reiche / Brimstone (Gonepteryx rhamni) butterfly, Netherlands

Silvia Reiche / Cleopatra Butterfly (Gonepteryx cleopatra) butterfly, Ardeche, France

Duncan Usher / Black-veined White (Aporia crataegi) butterfly resting on orchid plant, Bulgaria

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) butterfly, Switzerland

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) adult butterfly newly emerged from chrysalis, Switzerland

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) chrysalis, Switzerland, sequence 3 of 3

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) chrysalis, Switzerland, sequence 2 of 3

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) caterpillar transforming into chrysalis, Switzerland, sequence 1 of 3

Thomas Marent / Berger's Clouded Yellow (Colias alfacariensis) caterpillar, Switzerland

Thomas Marent / Black-veined White (Aporia crataegi) butterfly, Switzerland

Cyril Ruoso / Lyside Sulphur (Kricogonia lyside) butterfly pair mating, southern Texas

Cyril Ruoso / Lyside Sulphur (Kricogonia lyside) butterflies gathering at salt deposits to drink minerals, southern Texas

Scott Leslie / Sugar Maple (Acer saccharum) seedling growing beneath old-growth Canadian Hemlock (Tsuga canadensis), Nova Scotia, Canada

Pete Oxford / Pierid Butterfly (Phoebis sp) group on mineral lick, Yasuni National Park, Amazon, Ecuador

Pete Oxford / Pierid Butterfly (Phoebis sp) group on mineral lick, Yasuni National Park, Amazon, Ecuador

Mark Moffett / Pierid Butterfly (Phoebis sp) feeding on sunflower nectar, Sonoita, Arizona

Konrad Wothe / Orange-barred Sulphur (Phoebis philea) feeding on flower nectar, native to South America

Thomas Marent / Common Grass Yellow (Eurema hecabe) butterfly, Gunung Leuser National Park, northern Sumatra, Indonesia

Thomas Marent / Pierid Butterfly (Appias hombroni) feeding on minerals in soil, Tangkoko Nature Reserve, northern Sulawesi, Indonesia

Murray Cooper / Pierid Butterfly (Phoebis sp) group puddling on wet soil to extract minerals, Amazon, Ecuador

Ingo Arndt / Pierid Butterfly (Eurema sp) group feeding on soil minerals, Christmas Island, Indian Ocean, Territory of Australia

Silvia Reiche / Cabbage White (Pieris rapae) butterfly emerged, Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Cabbage White (Pieris rapae) pupa, Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Green-veined White (Pieris napi) butterfly, Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Cabbage White (Pieris rapae) pupa, Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Mountain Clouded Yellow (Colias phicomone) butterfly, Hohe Tauern National Park, Austria

Silvia Reiche / Green-veined White (Pieris napi) butterfly on Globe Thistle (Echinops ritro), Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Green-veined White (Pieris napi) butterfly on Globe Thistle (Echinops ritro), Hoogeloon, Noord-Brabant, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Meadow Clary (Salvia pratensis), Eifel, Germany

Silvia Reiche / Orange Tip (Anthocharis cardamines) caterpillar, Hoogeloon, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 14 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 13 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 10 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 8 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 6 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) metamorphosis sequence, Hoogeloon, Netherlands. Sequence 1 of 15

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Meadow Clary (Salvia pratensis), Hoogeloon, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) pupa, Saint-Jory-las-Bloux, Dordogne, France

Thomas Marent / Cloudless Sulphur (Phoebis sennae) butterfly, Colombia

Thomas Marent / Cloudless Sulphur (Phoebis sennae) chrysalis, Colombia

Thomas Marent / Common Wanderer (Pareronia anais) butterfly, Kheaun Sri Nakarin National Park, Thailand

Silvia Reiche / Wood White (Leptidea sinapis) butterfly

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on flower, Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on flower, Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on Grape Hyacinth (Muscari botryoides), Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on Grape Hyacinth (Muscari botryoides), Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on flower, Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly female on flower, Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly male on flower, Hoogeloon, Netherlands

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 14 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 13 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 11 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 7 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 10 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 9 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 5 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly metamorphosis, male, Hoogeloon, Netherlands. Sequence 3 of 14

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly, male, Hoogeloon, Netherlands

Silvia Reiche / Black-veined White (Aporia crataegi) butterfly on Common Daisy (Bellis perennis) flower, Germany

Silvia Reiche / Wood White (Leptidea sinapis) butterfly on Common Daisy (Bellis perennis), Germany

Silvia Reiche / Orange Tip (Anthocharis cardamines) butterfly pupa attached to twig, Netherlands

Silvia Reiche / Cabbage Butterfly (Pieris brassicae) pupa attached to leaf, Netherlands

Silvia Reiche / Wasp (Apanteles glomeratus) cocoons outside of Cabbage Butterfly (Pieris brassicae) caterpillar, the wasp larvae killed the caterpillar by eating it from the inside out, Netherlands

Silvia Reiche / Cabbage Butterfly (Pieris brassicae) pupa attached to leaf, Netherlands