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Thermonectus marmoratus

species

“Sunburst Diving Beetle”

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On Wikipedia

Thermonectus marmoratus is a relatively colorful North American species of diving beetle known by the common names sunburst diving beetle and spotted diving beetle. The behavior of this diving beetle has been compared to a scuba diver, since it carries with it a bubble of air as it dives down into the water. The beetle has recently become notable when it was discovered that its aquatic larval stage is the first ever recorded use of bifocal technology in the animal world. The beetle uses in its principal eyes two retinas and two distinct focal planes that are substantially separated, in the manner of bifocals to switch their vision from up-close to distance, for easy and efficient capture of their prey. Because of their bright colors, they are often displayed in zoos, sometimes together…

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Range Maps show field notes recorded by Natural Atlas contributors and other datasets via GBIF.org

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Thermonectus marmoratus