APORIA CRATAEGI Butterfly 3D Silver Coin 500 Togrog Mongolia 2017

The coin’s reverse features a beautiful and stunning 3D effect, thanks to high relief, of a butterfly resting on a green leaf. On the top of the coin's reverse, the inscription: “EXOTIC BUTTERFLIES” – the name of the series. On the bottom of the coin's reverse, the inscription: “APORIA CRATAEGI” – the name of the coin. The obverse of the coin depicts the Mongolian Coat of Arms and the inscriptions: “500 TOGROG” – the face value, “MONGOLIA” – the issue country and “25GR 999 SILVER” – the weight and fineness of the Silver.

Aporia Crataegi
Aporia crataegi, the black-veined white, is a large butterfly of the family Pieridae. It occurs in orchards and thickets throughout most of Europe, temperate Asia, Korea, and Japan. It is normally found at altitudes of 500 to 2.000 metres. The flight period of the black-veined white is between April and July. The adults are quite social and their abundance varies greatly from year to year. The eggs are laid on the food plant, usually a member of the rose family Rosaceae and often on trees in the genus Prunus such as the rowan or the bird cherry (Prunus padus), the hawthorns (Crataegus species) or the apple (Malus domestica). The eggs are yellow at first, darkening with age, and are laid in groups of 30 to 100. They take about three weeks to hatch. The caterpillars are greenish grey with transverse banding and tend to remain in a group with a communal larval web. The caterpillars overwinter communally in a webbing tent with entwined leaves. Caterpillars feed close together on the leaves of the food plant at first, before dispersing in the later developmental stages to other parts of the tree. The pupa is creamy white, marked with black, attached by a silken girdle to a twig. The pupal stage lasts about three weeks