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Hymenoptera: wasps, bees, ants etc. as well as the sawflies and horntails (wood wasps)

Hymenoptera: wasps, bees, ants etc. as well as the sawflies and horntails (wood wasps). mouth parts are variable complete metamorphosis 2 pr. of membranous wings, hind pair is smaller. thorax narrowly joined to abdomen.

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Hymenoptera: wasps, bees, ants etc. as well as the sawflies and horntails (wood wasps)

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  1. Hymenoptera: wasps, bees, ants etc. as well as the sawflies and horntails (wood wasps) • mouth parts are variable • complete metamorphosis • 2 pr. of membranous wings, hind pair is smaller

  2. thorax narrowly joined to abdomen The Hymenoptera is divided into two suborders: the Symphyta and the Apocrita. Symphyta (sawflies and horntails) Apocrita (bees, ants, parasitoids etc.) thorax broadly joined to abdomen ovipositor of horntail wasp ovipositor modified into stinger ovipositor saw-like in sawflies

  3. Woodwasps or horntails Sawflies • mostly woodborers • cause defects in lumber and fine woods • however, there is Sirex noctilio and it kills pine plantations! • mostly defoliators • cause much economic and aesthetic damage (urban forestry) • most cut slits in leaves and needles and lay their eggs within the slits. Let’s concentrate on the Symphyta: the sawflies and horntails (woodwasps).

  4. There’s a couple more things you need to know about sawfly larvae vs. caterpillars of moths

  5. Differences between sawflies and caterpillars

  6. Woodwasp drilling into the wood of a tree and laying eggs; the other member of the Symphyta “horn tail” Woodwasp larva feeding in wood

  7. The suborder: Apocrita

  8. Velvet ant (wingless wasp) Yellow jacket Ichneumonid wasp (parasitoid)

  9. Lepidoptera: the moths and butterflies • mouth parts are for siphoning • complete metamorphosis • 2 pr. of scaly wings, hind pair is smaller • larvae mostly phytophagous

  10. Moths • stout bodied • wings horizontal at rest • ~ nocturnal or crepuscular • antennae clubbed • Butterflies • delicate bodied • wings vertical at rest • ~ diurnal behavior • antennae clubbed

  11. Caterpillar Pests

  12. Diptera: the flies • complete metamorphosis • one pair of wings, both membranous • a pair of halteres • incredibly good fliers • some are phytophagous, others parasitoids, predators, blood feeders etc.

  13. Human botfly

  14. Syrphid flies are important predators of aphids

  15. Neuroptera: lacewings, • complete metamorphosis • two pair of membranous wings • hypodermic-like mouth parts • all predators Lacewings for example

  16. Neuroptera: lace wings, ant lions, snake flies etc.

  17. Ant Lion

  18. Antlion

  19. Dobsonfly

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