😎 HELLO hellgrammite! 😳WOW-- this hellgrammite (dobson fly larva) was so big our NW Scenic River Manager Rowan just had to create a reel! 🔎Finding hellgrammites in a stream is a strong indicator of good water quality because they are intolerant of pollution and require clean water and healthy aquatic habitat. 🪰 🪳Did you know that helgrammites can live up to 5 years on the bottom of streams and rivers, hiding under rocks and logs in fast-moving water? 🪰Eventually, they'll crawl out, pupate,
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😎 HELLO hellgrammite! 😳WOW-- this hellgrammite (dobson fly larva) wa…
46.8K views6 months ago
FacebookOhio Division of Natural Areas and Preserves
How to Fish and Tie the Murray's Hellgrammite
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Explaining Insects 🦋 on Instagram: "The dobsonfly is a large, fierce-looking insect known for its intimidating jaws and dramatic appearance. Despite its scary look, it’s mostly harmless to humans. The males have extremely long, curved mandibles that can look like antlers, while females have shorter but stronger jaws capable of giving a small pinch. They are usually found near freshwater rivers, streams, and lakes because their larvae—called hellgrammites—live underwater and are fierce predators
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Haw River Assembly on Instagram: "Happy Macro Monday! This week we're featuring the hellgrammite, the larval stage of the dobsonfly. These creatures are excellent indicators of water quality because they can only survive in clean, well-oxygenated streams. Our Haw River Watch volunteers identify macroinvertebrates like hellgrammites during four seasonal snapshot surveys each year, helping us determine stream health and notify state agencies when water quality is threatened. Finding hellgrammites
Haw River Assembly on Instagram: "Happy Macro Monday! This week …
2 months ago
Instagramhawriverassembly
Solvia Origin on Instagram: "‼️The Dobsonfly: An Ancient River Predator Disguised as an Insect‼️ - The dobsonfly (family Corydalidae) is one of the largest and most misunderstood insects on Earth, not because of what it does as an adult, but because of the life it lives before anyone ever sees it. Adults typically measure 9–13 cm (3.5–5 inches) in wingspan, making them among the largest flying insects in North America and parts of Asia. Males are instantly recognizable by their elongated, sickle
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This ugly river creature hides under rocks - then turns into a giant flying insect
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