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Dobsonflies, (larvae are also known as hellgrammites) are insects in the order Megaloptera. They have impressive sexual dimorphism; males have a extremely elongated mandibles, whereas the females do not. I have seen lots of misinformation over the years about these insects. Though they do have a strange appearance (apparently terrifying to some) theyre not harmful whatsoever. In fact, theyre very beneficial predators in aquatic ecosystems. They are what we call an indicator species, meaning that
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The dobsonfly’s journey begins when the adult female lays her eggs in a fast-moving stream or river. After emerging from the eggs, larvae, like the one you see here, will hide under rocks and in crevices until they morph into their final adult form. In its aquatic larvae phase, the dobsonfly is a fierce predator, equipped with sharp pincers capable of piercing human skin. Video taken at The Oklahoma Nature Conservancy. #dobsonfly #easterndobsonfly #larvae #insect #underwater #wildlife #video #fo
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