dragonflies & damselflies
adults - chewing. naiads - a folding mask (labium) extends to capture prey
2 pair; elongate with many veins; wings can't fold and are held horizontal (dragonflies) or vertical (damselflies) when at rest
hemimetabolous - naiads aquatic.
large compound eyes
very elongate thin thorax and abdomen.
long legs and wings.
Often brightly colored.
anal gills and body thin with leaflike caudal filaments.
naiads in water; adults strong flyers but related to water
elongate, thin body with large eyes, long legs and wings found near water. Naiads are distinctive in water.
Predacious insects considered beneficial
4900 species worldwide (400 in No. America) - primarily tropical. Many fossils
Peters 406; hemimetabolous development pg. 106-107; nymph movement 73-75
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