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A Key to Winged Insects

A Key to Winged Insects. OR HOW TO IDENTIFY YOUR ADULT INSECTS. Number of wings present. # 1. 2 wings present …. Go to next slide ……… 4 wings present …. Back wings may be folded under front wings . Go to Slide ……… 3. Diptera: (flies and mosquitoes).

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A Key to Winged Insects

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  1. A Key to Winged Insects OR HOW TO IDENTIFY YOUR ADULT INSECTS

  2. Number of wings present # 1 • 2 wings present …. Go to next slide ……… • 4 wings present …. Back wings may be folded under front wings. Go to Slide ……… 3

  3. Diptera:(flies and mosquitoes) #2 • One pair of wings. • Back wings reduced to small structures called halteres.

  4. 4 wings present #3 • Wings are covered with scales. Occasionally hind wings will be clear with no scales. Go to next Slide …….. • No scales on wings. Wings clear (membranous) or possibly thin and parchment-like. Go to Slide ……. 5

  5. Lepidoptera: (butterflies and moths) #4 • Antenna with knob- like structures or feathery. • Wings covered with scales. • 4 wings always present.

  6. Mouthparts: Sucking or Chewing #5 • Sucking mouthparts: mouthparts end in sharp pointed structure used for piercing. Go to next slide…….. • Chewing mouthparts: mouthparts not pointed. Mandibles present used for chewing. Go to slide …………..9

  7. Wings: Leathery or membranous #6 • Front wings leathery for first half and clear or membranous at end Go to next slide ……. • Wings entirely membranous and folded roof-like over the body Go to slide ………... 8

  8. Hemiptera: (true bugs)(stinkbugs and assassin bugs) #7 • Wings are folded over the back to form a triangle. • Tip of front wings membranous or resembling lace • Mouthparts: sucking and arise from the front of the head

  9. Homoptera: (Cicadas and leafhoppers) #8 • Wings membraneous or paper-like. • Wings held over body like a rooftop. • Sucking mouthparts arise from the lower part of the head.

  10. Front Wings: #9 • Front wings hard, not flexible. Go to the next slide. • Front wings parchment-like and flexible. Go to slide ……… 11 • Front wings membranous, clear and easy to see through. Go to slide ……… 12

  11. Coleoptera: (beetles) #10 • Front wings hard and inflexible. • Front wings come together and form a line down the middle of the back. • Hind wings membranous and hidden

  12. Orthoptera: (grasshoppers, cockroach, crickets) #11 • Possible jumping legs • Wings held straight back over the body • Wings paper-like and transluscent, often broad.

  13. Wings: #12 • Hind wings much smaller than front wings. Go to next slide ……… • Hind wings very close to equal size of the front wings. Go to slide ……… 14

  14. #13 Hymenoptera:(bees and wasps) • Chewing mouthparts • Wings membranous • Hind wings smaller than front wings.

  15. Odonata: dragonflies and damselflies #14 • Chewing mouthparts • Wings membranous • Hind wings almost equal in size to front wings.

  16. Sucking Mouthparts

  17. Chewing Mouthparts

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