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Anthocharis cardamines

Posted by
Johan Dierckx (Wijnegem, Belgium) on 29 June 2011 in Animal & Insect and Portfolio.

Anthocharis cardamines (NL: Oranjetipje / EN: Orange Tip / DE: Aurorafalter) is a butterfly in the Pieridae family. So named because of the male's bright orange tips to his forewings. The males are a common sight in spring flying along hedgerows and damp meadows in search of the more reclusive female which lacks the orange and is often mistaken for one of the other 'White' butterflies. The undersides are mottled green and white and create a superb camouflage when settled on flowerheads such Garlic Mustard (Alliaria petiolata). The male is able to hide his orange tips by tucking the forwings behind the hindwings at rest. If you look closely at the mottling you will see that the green colour is in fact made up of a mixture of black and yellow scales. It is found across Europe, and eastwards into temperate Asia as far as Japan. The female lays eggs singly on the flowerheads of Cuckooflower (Cardamine pratensis) and Garlic Mustard (Alliaria petiolata) and many other species of wild Crucifers, all of which contain chemicals called glucosinolates. Females are attracted to larger flowers, such as Hesperis matronalis, even though some such species are poor larval hosts. Selection of foodplants is triggered by the presence of mustard oils and their derivative glucosinolates, which are detected by chemosensory hairs on the fore-legs. Reproductive rate of females appears to be limited by difficulties in finding suitable hosts. As a consequence, the species has evolved to use a wide range of crucifers. The eggs are white to begin with but change to a bright orange after a few days before darkening off just before hatching. Because the larvae feed almost exclusively on the flowers and developing seedpods there is rarely enough food to support more than one larva per plant. If two larvae meet one will often be eaten by the other to eliminate its competitor. Newly hatched larvae will also eat unhatched eggs for the same reason. To stop eggs from being laid on plants already laid on the female leaves a pheromone to deter future females from laying.

Image: Tellin (BE) - 08/05/2011

Canon EOS 400D 1/1000 second F/5.6 ISO 200 150 mm

© Johan Dierckx

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Aubélia from Kortrijk, Belgium

Prachtige details in deze foto.

29 Jun 2011 9:03am

Maggy from Liège, Belgium

Superbe papillon dans tout son éclat, bravo

29 Jun 2011 11:27am

DowsherVision from PARIS, France

Cette image est superbe !!!!

29 Jun 2011 5:42pm

Veronique from Hautes-Pyrénées, France

its wings are like tapisserie

30 Jun 2011 2:39pm

Loner from Wörgl, Austria

Einfach nur SCHÖÖÖÖN ! Gratuliere zu dieser herrlichen Aufnahme !

30 Jun 2011 8:27pm

Canon EOS 400D
1/1000 second
ISO 200
150 mm