Dragonflies - II
Like in the first part of the series, the motifs for the second and last part of these colourful definitives were taken by nature photographer Xaver Roser. He captured the dragonflies on camera in the Ruggeller Riet nature reserve in Liechtenstein.
The "White Featherleg" dragonfly (face value: CHF 0.85) is, true to its name, basically white and is easily confused with other featherleg dragonfly species. The "Red-veined Darter" (face value: CHF 1.30) is a very frequent migrant. It usually produces two, sometimes even three generations a year. The "Scarlet Darter" (face value: CHF 1.80) is a typical species of the Mediterranean region, which has spread increasingly northwards in recent years probably due to global warming. The complete body of adult males of this species is bright red and reaches a length of about forty millimetres.
In Austria and Germany, the "Spotted Darter" dragon fly (face value: CHF 2.00) is an endangered species and is classified as "vulnerable" on the Red List in Switzerland. It has completely black legs and its wings have dense venation compared to other members of its species.