A railroad worm is a larva or larviform female adult of a beetle of the genus Phrixothrix in the family Phengodidae, characterized by the possession of two different colors of bioluminescence. It has the appearance of a caterpillar. The eleven pairs of luminescent organs on their second thoracic segment through their ninth abdominal segment can glow yellowish-green, while the pair on their head can glow red; this is due to different luciferases in their bodies, as the reaction substrate, called luciferin, is the same. The term "railroad worm" is also sometimes applied to the apple maggot.
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| - Railroad worm (en)
- Фриксотрикс (ru)
- Phrixothrix (sv)
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| - Phrixothrix är ett släkte av skalbaggar. Phrixothrix ingår i familjen Phengodidae. Kladogram enligt Catalogue of Life: (sv)
- Фриксотрикс (лат. Phrixothrix) — род жуков из семейства Фенгодиды. Личинки и самки имеют люминесцентные органы. Характерен ярко выраженный половой диморфизм. Самки неотенические (всю жизнь обладают признаками личинок), длина — 60 мм, бескрылые. Самцы гораздо мельче, обладают всеми признаками имаго жесткокрылых. Жуки и личинки — хищники. Представители рода распространены в Центральной и Южной Америке. (ru)
- A railroad worm is a larva or larviform female adult of a beetle of the genus Phrixothrix in the family Phengodidae, characterized by the possession of two different colors of bioluminescence. It has the appearance of a caterpillar. The eleven pairs of luminescent organs on their second thoracic segment through their ninth abdominal segment can glow yellowish-green, while the pair on their head can glow red; this is due to different luciferases in their bodies, as the reaction substrate, called luciferin, is the same. The term "railroad worm" is also sometimes applied to the apple maggot. (en)
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| - Railroad worm with lights both on and off (en)
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| - Phengodidae Phrixothrix (en)
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| - A railroad worm is a larva or larviform female adult of a beetle of the genus Phrixothrix in the family Phengodidae, characterized by the possession of two different colors of bioluminescence. It has the appearance of a caterpillar. The eleven pairs of luminescent organs on their second thoracic segment through their ninth abdominal segment can glow yellowish-green, while the pair on their head can glow red; this is due to different luciferases in their bodies, as the reaction substrate, called luciferin, is the same. The "railroad worm" name arises because these glowing spots along the body resemble the windows of train cars internally illuminated in the night. The light emissions are believed to be a warning signal to nocturnal predators of their unpalatability. The term "railroad worm" is also sometimes applied to the apple maggot. (en)
- Phrixothrix är ett släkte av skalbaggar. Phrixothrix ingår i familjen Phengodidae. Kladogram enligt Catalogue of Life: (sv)
- Фриксотрикс (лат. Phrixothrix) — род жуков из семейства Фенгодиды. Личинки и самки имеют люминесцентные органы. Характерен ярко выраженный половой диморфизм. Самки неотенические (всю жизнь обладают признаками личинок), длина — 60 мм, бескрылые. Самцы гораздо мельче, обладают всеми признаками имаго жесткокрылых. Жуки и личинки — хищники. Представители рода распространены в Центральной и Южной Америке. (ru)
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