Comprehensive guides to major insect orders, morphological classification, and taxonomic diversity across North American and global ecosystems.
The Backyard Field Notebook Look at the wings. Check the mouthparts. Then follow the clues. The small visitor on your window might be a beetle, a true bug, or a fly. Learning a few visible features can turn a vague guess into a useful identification—without memorizing hundreds of species. A ladybug rests on a leaf. … Read more
Long before birds soared over prehistoric forests and millions of years before pterosaurs took to the skies, order Odonata ruled the ancient atmosphere. Originating more than 300 million years ago during the late Carboniferous period, early odonate ancestors—the legendary griffinflies (Protodonata), including the colossal Meganeura monyi—boasted wingspans exceeding 28 inches (70 cm), fueled by hyper-oxygenated … Read more
In popular parlance, nearly any crawling, six-legged creature is casually referred to as a “bug.” However, to an entomologist, the term “true bug” has an exact, rigorous taxonomic meaning restricted exclusively to the order Hemiptera. Comprising more than 80,000 described species globally, Hemiptera includes iconic creatures such as cicadas, aphids, leafhoppers, stink bugs, assassin bugs, … Read more
Across the expansive forests, tallgrass prairies, coastal dunes, and arid deserts of North America, order Coleoptera reigns as an unrivaled evolutionary powerhouse. Comprising more than 25,000 described species north of the Rio Grande, North American beetles exhibit a breathtaking spectrum of morphological adaptations, from the metallic emerald carapaces of wood-boring buprestids to the subterranean chemical … Read more
Insects represent the most biologically diverse class of living organisms on planet Earth. With more than one million described species and conservative estimates suggesting millions more await cataloging, insects dominate terrestrial and freshwater biomes across every continent, including the frigid edges of Antarctica. Within the class Insecta, four mega-diverse orders comprise over eighty percent of … Read more