Dragonfly

Definition: Dragonfly

Dragonfly

Noun

1. Slender-bodied non-stinging insect having iridescent wings that are outspread at rest; adults and nymphs feed on mosquitoes etc.

Date "dragonfly" was first used in popular English literature: sometime before 1871. (references)

Specialty Definition: Dragonfly

(From Wikipedia, the free Encyclopedia)

Dragonflies

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Scientific classification

Kingdom: Animalia

Phylum: Arthropoda

Class: Hexapoda

Order: Odonata

Suborder: Anisoptera

Families

Aeshnidae
Austropetaliidae
Cordulegastridae
Corduliidae
Gomphidae
Libellulidae
Neopetaliidae
Petaluridae

The dragonfly (suborder Anisoptera) is an insect of the order Odonata, with large multifacted eyes, two pairs of long transparent wings, and a long body. Dragonflies typically eat mosquitos, midges and other small insects. Another name for them is mosquito hawks.

Dragonflies do not bite or sting humans.

The life cycle of the dragonfly, from egg to death of adult, is from six months to as much as six or seven years. Most of this time is spent in the larval (nymph) form, beneath the water surface, catching other invertebrates or even tiny fish. In the adult (flying) stage larger species of dragonfly can live as long as four months. Dragonflies have about 30,000 facets to their eyes, giving them nearly a 360° field of vision.

In the past some much larger dragonfly species existed. The largest found was an extinct Protodonata from the Permian period with a wingspan of 70-75cm (27.5-29.5"). This compares to 19cm (7.5") for the largest modern species of odonate, the Central American giant damselfly Megaloprepus coerulatus. The smallest modern species recorded is the libellulid dragonfly Nannophya pygmaea from east Asia with a wing span of only 20mm, or about 3/4 of an inch.

Common Green Darner (Anax junius)

The Common Green Darner dragonfly (Anax junius) is nicknamed "Darning Needle" because of its body shape. It is one of the fastest-flying dragonflies.

Damselflies are often confused with dragonflies, but the two insects are distinct: damselflies at rest hold their wings vertically above the body, whereas dragonflies at rest hold them horizontally. Also, the eyes on a damselfly are farther apart than the eyes on a dragonfly. Both are members of Odonata, and their life cycles are similar.

Some species:

Emperor Dragonfly, Anax imperator
Black-tailed Skimmer, Orthetrum cancellatum

INDEX

1. Definition
2. Synonyms
3. Crosswords
4. Usage: Modern

5. Usage: Commercial
6. Images: Slideshow
7. Images: Photo Album
8. Images: Digital Art

9. Usage Frequency
10. Expressions: Internet
11. Translations: Modern
12. Derivations

13. Anagrams
14. Bibliography