Southwestern demoiselle
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Southwest Demoiselle ( Calopteryx xanthostoma ) |
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| Calopteryx xanthostoma | ||||||||||||
| ( Charpentier , 1825) |
The south-western demoiselle ( Calopteryx xanthostoma ) is a species of dragonfly from the family of the demoiselle (Calopterygidae). Their distribution area is concentrated in south-western Europe.
features
The south-western demoiselle is very similar in appearance to the banded demoiselle . It reaches a wingspan of 65 to 75 millimeters. The males have a dark, metallic-blue body.
The wings have a distinct, darkly pigmented wing band , which in comparison with the blue-winged demoiselle rarely extends basal to the middle between the base of the wing and the knot, but in contrast to the banded demoiselle it also fills the wing tips. The last abdomen segments of the male are also yellowish, while these are whitish in the banded demoiselle. The females of the banded and the south-western demoiselle cannot be distinguished morphologically.
distribution
The distribution area of the south-western demoiselle is limited to the western Mediterranean area and extends in Europe from Portugal and almost all of Spain through southern France to northwestern Italy . It can also be found in Sicily and possibly in isolated areas in Algeria and Tunisia . The animals live in the area of clear streams and rivers.
Way of life
The flight time of the south-western demoiselle is between April and September, and their behavior largely corresponds to that of other demoiselles such as the banded demoiselle ( C. splendens ) or the blue-winged demoiselle ( C. virgo ).
Systematics
The species status of the south-western demoiselle has not yet been fully clarified and is mainly based on differences in mating behavior. According to general opinion, it represents one of about 20 species of the genus Calopteryx known today. In addition to this species, three other species are represented in Europe, with the bronze demoiselle ( C. haemorrhoidalis ) and the south-western demoiselle only occurring in southern Europe. All other species are distributed over the Holarctic and can also be found in North America and Asia.
The sister species of the south-western demoiselle is the banded demoiselle, as its subspecies it is partially considered. According to molecular biological studies, the European species are related as follows:
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Individual evidence
- ↑ a b c d e Gerhard Jurzitza: The Kosmos dragonfly guide . Franckh-Kosmos Verlags GmbH & Co., Stuttgart 2000; P. 170. ISBN 3-440-08402-7 .
- ↑ a b Georg Rüppell: The magnificent dragonflies of Europe. Neue Brehm-Bücherei Volume 654, Westarp Sciences Hohenwarsleben 2005; Pp. 208-209. ISBN 3-89432-883-5 .
- ↑ B. Misof, CL Anderson, H. Hadrys: A phylogeny of the damselfly genus Calopteryx (Odonata) using mitochondrial 16S rDNA markers. in: Molecular Phylogenetics and Evolution. Academic Press, Orlando Fla. 15.2000, 1, 5–14 Online: PDF ( Memento from September 29, 2007 in the Internet Archive ). ISSN 1095-9513
Web links
- Calopteryx xanthostoma in Fauna Europaea
- Calopteryx xanthostoma inthe IUCN 2013 Red List of Threatened Species . Posted by: Boudot, J.-P., 2009. Retrieved February 23, 2014.