{"id":7568,"date":"2019-02-19T15:29:08","date_gmt":"2019-02-19T20:29:08","guid":{"rendered":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/?page_id=7568"},"modified":"2024-04-22T17:15:32","modified_gmt":"2024-04-22T21:15:32","slug":"aquatics","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/aquatics\/","title":{"rendered":"Aquatic Pests and Critters"},"content":{"rendered":"<h3><strong><em>See also our <a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/critter-id\/photo-gallery\/aquatics\/\">photo collection of Aquatic Critters<\/a><\/em><\/strong><\/h3>\n<hr \/>\n<h3>A lesson in entomological terminology:<\/h3>\n<p><strong>Question:<\/strong> When are the immature stages of an aquatic insect a nymph versus a larva? <strong>Answer:<\/strong> It depends on whether the insect undergoes complete or incomplete metamorphosis. The life stages of insects undergoing <strong>incomplete metamorphosis<\/strong> are egg, nymph, and adult.\u00a0 The life stages of insects undergoing <strong>complete metamorphosis<\/strong> are egg, larva, pupa, and adult.\u00a0 Among aquatic insects sharing incomplete metamorphosis are mayflies, damselflies, dragonflies, stoneflies, and water bugs (so those insects have nymphs).\u00a0 Among aquatic insects sharing <em>complete<\/em> metamorphosis are alderflies, dobsonflies, fishflies, beetles, caddisflies and true flies (so those insects have larvae).<\/p>\n<hr \/>\n<figure id=\"7566\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7566 size-full\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae.jpg\" alt=\"Three mosquito larvae underwater but positioned with their breathing tube--called a siphon--at the surface for air exchange\/breathing.\" width=\"379\" height=\"379\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae.jpg 379w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae-300x300.jpg 300w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae-105x105.jpg 105w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae-317x317.jpg 317w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/02\/AquaticsCategory-MosquitoLarvae-32x32.jpg 32w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,379px\" \/><figcaption class=\"wp-caption-text\">Mosquito Larvae &#8212; Photo by Griffin Dill.<\/figcaption><\/figure>\n<ul>\n<li><a href=\"http:\/\/uwm.edu\/field-station\/water-boatmen-backswimmers\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Backswimmers<\/strong><\/a> (UWM)<\/li>\n<li><strong><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/black-flies\/\"><b>Black Flies<\/b><\/a> <\/strong>(their larvae are aquatic)<\/li>\n<li><a href=\"https:\/\/bugguide.net\/node\/view\/5233\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Caddisflies<\/strong><\/a> (the larvae are aquatic) (BugGuide.net)<\/li>\n<li><strong><a href=\"https:\/\/bugguide.net\/node\/view\/190\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Damselflies<\/b><\/a><\/strong> (the nymphs are aquatic) (BugGuide.net)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/deer-flies\/\"><strong>Deer Flies<\/strong><\/a> (the larvae are aquatic)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/dobsonflies\/\"><strong>Dobsonflies<\/strong><\/a> (the larvae are aquatic)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/dragonflies\/\"><strong>Dragonflies<\/strong><\/a> (the nymphs are aquatic)<\/li>\n<li><strong><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/drain-flies\/\"><b>Drain Flies<\/b><\/a> <\/strong>(also called <strong>Moth Flies<\/strong>) (found around sewage or other wet areas, indoors and\/or outdoors)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/fishflies\/\"><strong>Fishflies<\/strong><\/a> (the larvae are aquatic)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/giant-water-bug\/\"><strong>Giant Water Bug<\/strong><\/a> (commonly called a &#8220;Toe-biter&#8221;)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/horse-flies\/\"><strong>Horse Flies<\/strong><\/a> (some horse fly larvae are aquatic)<\/li>\n<li><a href=\"http:\/\/msue.anr.msu.edu\/news\/the_mayflies_are_coming_time_to_celebrate\" target=\"_blank\" rel=\"noopener noreferrer\"><strong><b>Mayflies<\/b><\/strong><\/a> (the nymphs are aquatic) (Michigan State Univ. Extension)<\/li>\n<li><strong><a href=\"http:\/\/www.maine.gov\/dacf\/mfs\/forest_health\/insects\/mosquitoes.htm\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Mosquitoes<\/b><\/a><\/strong> (Maine Forest Service) <strong><em>see also:<\/em><\/strong>\n<ul>\n<li><a href=\"http:\/\/umaine.edu\/ipm\/ipddl\/publications\/5109e\/\"><b>Mosquito Biology<\/b><\/a> (UMaine Extension)<\/li>\n<li><a href=\"http:\/\/umaine.edu\/ipm\/ipddl\/publications\/5110e\/\"><b>Mosquito Management<\/b><\/a> (UMaine Extension)<\/li>\n<li><a href=\"http:\/\/umaine.edu\/ipm\/ipddl\/publications\/5108e\/\"><b>Insect Repellents<\/b><\/a> (UMaine Extension)<\/li>\n<li><a href=\"http:\/\/www.cdc.gov\/ncidod\/dvbid\/westnile\/index.htm\" target=\"_blank\" rel=\"noopener noreferrer\"><b>West Nile Virus<\/b><\/a> (CDC)<\/li>\n<li><a href=\"http:\/\/umaine.edu\/publications\/1003e\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Preventing Eastern Equine Encephalitis (EEE) Virus in Maine<\/b><\/a><\/li>\n<\/ul>\n<\/li>\n<li><strong><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/drain-flies\/\"><b>Moth Flies<\/b><\/a> <\/strong>(also called <strong>Drain Flies<\/strong>) (found around sewage or other wet areas, indoors and\/or outdoors)<\/li>\n<li><a href=\"https:\/\/content.ces.ncsu.edu\/biology-and-control-of-non-biting-aquatic-midges\" target=\"_blank\" rel=\"noopener\"><strong>Non-biting Midges<\/strong><\/a> (NS State Extension)<\/li>\n<li><a href=\"http:\/\/bugguide.net\/node\/view\/195\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Predaceous Diving Beetles<\/strong><\/a> (BugGuide.net)<\/li>\n<li><strong><a href=\"https:\/\/bugguide.net\/node\/view\/76\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Stoneflies<\/b><\/a><\/strong> (the nymphs are aquatic) (BugGuide.net)<b><\/b><\/li>\n<li><a href=\"http:\/\/uwm.edu\/field-station\/water-boatmen-backswimmers\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Water Boatmen<\/strong><\/a> (UWM)<\/li>\n<li><strong><a href=\"https:\/\/texasinsects.tamu.edu\/water-scavenger-beetle\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Water Scavenger Beetles<\/b><\/a><\/strong> (Texas A&amp;M)<\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/water-scorpions\/\"><strong><b>Waterscorpions<\/b><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/common-name-listing\/water-striders\/\"><strong><b>Water Striders<\/b><\/strong><\/a><b><\/b><\/li>\n<\/ul>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>See also our photo collection of Aquatic Critters A lesson in entomological terminology: Question: When are the immature stages of an aquatic insect a nymph versus a larva? Answer: It depends on whether the insect undergoes complete or incomplete metamorphosis. The life stages of insects undergoing incomplete metamorphosis are egg, nymph, and adult.\u00a0 The life [&hellip;]<\/p>\n","protected":false},"author":60,"featured_media":0,"parent":71,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-7568","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aquatic Pests and Critters - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/aquatics\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aquatic Pests and Critters - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"See also our photo collection of Aquatic Critters A lesson in entomological terminology: Question: When are the immature stages of an aquatic insect a nymph versus a larva? 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