Little pitch dragonfly
| Little pitch dragonfly | ||||||||||||
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Little pitch dragonfly ( Ischnura pumilio ), young male |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Ischnura pumilio | ||||||||||||
| ( Charpentier , 1825) |
The little pitch dragonfly ( Ischnura pumilio ) is a dragonfly from the family of slender dragonflies .
features
The little pitch dragonfly is almost 3 cm long and has a wingspan of 3.5 cm. Shortly before the end of the abdomen, the male has a blue mark that the females lack. While this "blue taillight" is on the 8th abdomen segment of the very similar large pitch dragonfly, the 9th abdomen segment and the rear edge of the 8th segment of the small pitch dragonfly are blue. The species appears in different color variants depending on age and stage of development, the female is usually red-orange at first and then becomes light or olive green (in rare cases blue), the male is initially whitish, but then turns yellowish-green and then becomes blue. In addition, the male has two-tone, black and white wing marks on the forewings.
Habitat and Distribution
This species is one of the first to colonize stagnant water, ideal are shallow water with little vegetation. With growing vegetation and succession , the occurrences usually disappear again. It occurs as an island in Europe and is largely absent in the north (e.g. Scandinavia). In the east it is found from Asia Minor to Siberia, to the south the distribution extends to Morocco. Occurrences are known in the Azores and Madeira .
Frequency and protection
The species occurs irregularly, in Central Europe it is only common in a few places. Like all dragonflies, the little pitch dragonfly in Germany is "specially protected" by the Federal Species Protection Ordinance. On the current Red List of Germany (as of 2012) it is listed in the "pre-warning list" - previously it was considered "endangered".
Reproduction
The flight time is from the end of May to the beginning of September, in southern Europe the flight time sometimes begins in March. Mating and oviposition take place as with the great pitch dragonfly. In the south there are sometimes two generations per year. The flight time is often negatively influenced by bad weather periods.
literature
- Klaas-Douwe B. Dijkstra: Field Guide to the Dragonflies of Britain and Europe . British Wildlife Publishing, Gillingham, 2006, ISBN 978-0953139941
- J. Ott, K.-J. Conze, A. Günther, M. Lohr, R. Mauersberger, H.-J. Rohland & F. Suhling: Red list and total species list of dragonflies in Germany with analysis of responsibility, third version, as of early 2012 (Odonata) . Libellula Supplement 14, 2015: 395-422.
- Helgard Reichholf-Riehm: Insects. 1984, Munich
