Nannothemis bella
| Nannothemis bella | ||||||||||||
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Nannothemis bella |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Nannothemis | ||||||||||||
| Brewer , 1868 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Nannothemis bella | ||||||||||||
| ( Uhler , 1857) |
The Nannothemis bella is the only dragonfly species of the genus Nannothemis from the subfamily Brachydiplacinae . Their distribution area extends across southeastern Canada and along the east coast of the USA .
Construction of the Imago
The animals reach a length of 18 to 20 millimeters and a wingspan of 25 to 35 millimeters. It is thus the smallest species of dragonfly in North America. The males are bluish with a grayish-white coating, while the females are black with yellow stripes. The wings are clear in the males, but in the females there is a golden spot at the base. Sometimes the cubito anal area in females also has a dark brown line. Similar to representatives of Erythrodiplax , Pseudoleon , Uracis and Ypirangathemis , the last segment of the vesica spermalis is long and cylindrical.
Habitat
The habitat of Nannothemis bella consists of marshland with stagnant water in which the larvae develop.
Way of life
The adult Nannothemis bella feed on small flying insects. On sunny days they sit on plant stalks and take off short hunting flights from there. The larvae prey on small aquatic insects (insect larvae) and worms.
Systematics
Nannothemis bella is the only species of the genus Nannothemis within the sailing dragonflies (Libellulidae). It was first scientifically described as Nannophya bella by Philip Reese Uhler in 1857, Friedrich Moritz Brauer first described the genus in 1860.
Individual evidence
- ^ A b c Garrison, von Ellenrieder , Louton: Dragonfly Genera of the New World . Johns Hopkins University Press, 2006, ISBN 0-80188446-2 , pp. 280f
- ↑ a b c Lorus Milne, Margery Milne: Field Guide to Insects and Spiders. National Audubon Society, Chantacleer Press, 1980; Pp. 382-383. ISBN 0-394-50763-0 .
- ^ Martin Schorr, Martin Lindeboom, Dennis Paulson: World Odonata List. Update from October 2, 2011 ( download ).
