Micrathyria
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Micrathyria hagenii perched on a branch. |
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| Scientific name | ||||||||||||
| Micrathyria | ||||||||||||
| Kirby , 1889 |
Micrathyria is a genus of 46 species of dragonfly belonging to the subfamily Brachydiplacinae . It wasfirst describedby William Forsell Kirby in 1889. The distribution area extends from the southeast of the USA to central Argentina and Uruguay . The animals are also found on the West Indies .
features
Micrathyria species are smaller to medium-sized dragonflies with a length of 24 to 41 millimeters. The thorax and abdomen are colored black. The chest and abdomen have light blue, green or yellow stripes and points that vary depending on the species. The abdomen is overall slender in the females but somewhat thicker than in the males. The wings are - with the exception of Micrathyria artemis and Micrathyria stawiarskii - tinted brown at the base, otherwise transparent. Several species of females have brown spots on their wings.
Way of life
The habitats of the individual species are very different and range from lakes and canals to brackish pools . While the females usually sit away from the water, the aggressive males usually choose locations near the shore. After mating, which lasts for a relatively short time, the female lays the eggs without being guarded by the male. The laying of eggs is very different for the different species. While some touch the water with the tip of the abdomen, others throw the eggs out of the air onto the water. Still others attach the eggs to plants that can be both above and below water.
Systematics
The genus was first established by Kirby in 1889 based on the Libellula didyma . The genus consists of the following 46 species:
- Micrathyria aequalis ( Hagen , 1861)
- Micrathyria almeidai Santos , 1945
- Micrathyria artemis Ris , 1911
- Micrathyria athenais Calvert , 1909
- Micrathyria atra ( Martin , 1897)
- Micrathyria borgmeieri Santos , 1947
- Micrathyria caerulistyla Donnelly , 1992
- Micrathyria cambridgei Kirby , 1897
- Micrathyria catenata Calvert , 1909
- Micrathyria coropinae Geijskes , 1963
- Micrathyria debilis ( Hagen , 1861)
- Micrathyria dictynna Ris , 1919
- Micrathyria dido Ris , 1911
- Micrathyria didyma ( Selys in Sagra , 1857)
- Micrathyria dissocians Calvert , 1906
- Micrathyria divergens Westfall , 1992
- Micrathyria dunklei Westfall , 1992
- Micrathyria duplicata Navás , 1922
- Micrathyria dythemoides Calvert , 1909
- Micrathyria eximia Kirby , 1897
- Micrathyria hagenii Kirby , 1890
- Micrathyria hesperis Ris , 1911
- Micrathyria hippolyte Ris , 1911
- Micrathyria hypodidyma Calvert , 1906
- Micrathyria iheringi Santos , 1946
- Micrathyria kleerekoperi Calvert , 1946
- Micrathyria laevigata Calvert , 1909
- Micrathyria longifasciata Calvert , 1909
- Micrathyria mengeri Ris , 1919
- Micrathyria occipita Westfall , 1992
- Micrathyria ocellata Martin , 1897
- Micrathyria paruensis Geijskes , 1963
- Micrathyria pirassunungae Santos , 1953
- Micrathyria pseudeximia Westfall , 1992
- Micrathyria pseudhypodidyma Costa, Lourenço & Viera , 2002
- Micrathyria ringueleti Rodrigues , 1988
- Micrathyria romani Sjöstedt , 1918
- Micrathyria schumanni Calvert , 1906
- Micrathyria spinifera Calvert , 1909
- Micrathyria spuria ( Selys , 1900)
- Micrathyria stawiarskii Santos , 1953
- Micrathyria surinamensis Geijskes , 1963
- Micrathyria sympriona Tennessen , 2000
- Micrathyria tibialis Kirby , 1897
- Micrathyria ungulata Forester , 1907
- Micrathyria venezuelae De Marmels , 1989
Individual evidence
- ^ A b c Garrison, von Ellenrieder , Louton: Dragonfly Genera of the New World . Johns Hopkins University Press , 2006, ISBN 0-8018-8446-2 , pp. 256f.
- ^ A b Carlos Esquivel: Libélulas de Mesoamérica y el caribe , Editorial INBio, Herrara, ISBN 9968-927-13-9 , p. 242.
- ^ Henrik Steinmann: World Catalog of Odonata (Volume II Anisoptera), de Gruyter, 1997, ISBN 3-11-014934-6 , p. 346ff.
- ↑ Martin Schorr, Dr. Martin Lindeboom, Dr. Dennis Paulson: World List of Odonata - Libellulidae. In: World List of Odonata. Retrieved May 10, 2013 .