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firefly

 
Dictionary: fire·fly   (fīr'flī') pronunciation
n.
Any of various nocturnal beetles of the family Lampyridae, characteristically having luminescent chemicals in the posterior tip of the abdomen that produce a flashing light. Also called lightning bug. See Regional Note at lightning bug.


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Any of the nocturnal luminous beetles of the family Lampyridae, consisting of about 1,900 species that inhabit tropical and temperate regions (including the common glowworm). Adult fireflies are 0.2 – 1 in. (5 – 25 mm) long and have light-producing organs on the underside of the abdomen. The soft, flattened, dark-brown or black body is often marked with orange or yellow. Some adult fireflies do not eat; others feed on pollen and nectar. Most fireflies produce short, rhythmic flashes in a pattern that is characteristic of the species and an important mating signal.

For more information on firefly, visit Britannica.com.

 
firefly or lightning bug, small, luminescent, carnivorous beetle of the family Lampyridae. Fireflies are well represented in temperate regions, although the majority of species are tropical and subtropical. They are nocturnal in their behavior, and males commonly fly about in the evening during early summer. In many species the females are wingless.

Males, females, and larvae emit a heatless, greenish-yellow to reddish-orange light; in some species even the eggs glow. The light, which plays a role in mating, is produced by light organs located on the underside of the abdomen. These consist of several layers of small reflector cells and a layer of light-producing cells. The light-producing cells are permeated by nerves and air tubes; oxygen supplied by the air tubes converts the cell product luciferin to oxyluciferin. This oxidation, catalyzed by the enzyme luciferase, releases energy in the form of light. The insect controls the emission of light by regulating the amount of air supplied to the cells. The intensity and frequency of the flashes vary with the species and probably serve to identify males and females to each other. Synchronized flashing is characteristic of some tropical species.

Adult fireflies of many species do not feed. The larvae, which hatch from eggs laid on or in wet soil, feed on snails and earthworms, injecting their prey with a paralyzing fluid. Pupation (see insect) occurs after one or two years. Both larvae and wingless females are called glowworms. The common European glowworm is the female of the Lampyris noctiluca. Asian glowworms are considered beneficial controllers of crop-damaging snails and slugs. There are other luminescent insects, including members of other beetle families; the most spectacular are found in the click beetle family.

Fireflies are classified in the phylum Arthropoda, class Insecta, order Coleoptera, family Lampyridae.


Wikipedia: Firefly (disambiguation)
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Firefly is a common name for a bioluminescent beetle in the Lampyridae family.

Firefly may also refer to:

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Film and television

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Translations: Firefly
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Dansk (Danish)
n. - ildflue

Nederlands (Dutch)
vuurvliegje

Français (French)
n. - luciole

Deutsch (German)
n. - Leuchtkäfer

Ελληνική (Greek)
n. - (εντομ.) πυγολαμπίδα (κν. κωλοφωτιά)

Italiano (Italian)
lucciola

Português (Portuguese)
n. - vaga-lume (m) (Zool.)

Русский (Russian)
светляк

Español (Spanish)
n. - luciérnaga

Svenska (Swedish)
n. - eldfluga

中文(简体)(Chinese (Simplified))
萤火虫

中文(繁體)(Chinese (Traditional))
n. - 螢火蟲

한국어 (Korean)
n. - 반딧벌레

日本語 (Japanese)
n. - ホタル

العربيه (Arabic)
‏(الاسم) يراعه, نوع من الخنافس‏

עברית (Hebrew)
n. - ‮גחלילית‬


 
 
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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/ Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Firefly (disambiguation)" Read more
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