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Class Insecta

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E (soil or plant tissue), N2-4, A. Predators. spined ... Order Lepidoptera. Moths & butterflies. Complete. Larvae chewing. Adults siphoning. 2 pairs wings ... – PowerPoint PPT presentation

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Title: Class Insecta


1
Class Insecta
  • Sixteen orders

2
Order Thysanoptera
  • Thrips
  • Intermediate
  • Raspingmouthparts
  • Flower buds
  • enclosed spaces
  • 4 Feathery wings
  • poorlydeveloped
  • Vectors
  • Some predaceous

3
Order Thysanoptera
  • Intermediate
  • E, N1-2, Pre, Pseudo, A
  • Eggs in plant tissue
  • 2 active larvaeprepupae pseudopupae in the
    soil
  • Adults onplants

4
Order Homoptera
  • Aphids, scales, whiteflies, cicadas
  • Incomplete
  • Piercing-sucking mouthparts
  • Secrete honeydew
  • Whiteflies
  • scale insects
  • APHID INFO
  • Apical meristems
  • New growth
  • Low N
  • Complex L.C.
  • E (overwinter),
  • none in summer,
  • N2-4, A
  • Appendages
  • cornicles
  • cauda

5
Order Homoptera
6
Order Homoptera
  • Intermediate Life Cycle

7
Order Hemiptera
  • True bugs
  • Incomplete
  • Piercing-sucking
  • Triangular scutellum
  • 4 wings (hemelytra)
  • E (soil or plant tissue), N2-4, A
  • Predators
  • spined shoulders

8
Order Orthoptera
  • Grasshoppers crickets
  • Incomplete
  • Chewing mouthparts
  • 2 pairs of wings
  • -outer leather
  • -inner membranous
  • E, N2-4, A
  • Hind legs modifiedfor jumping
  • Abdominal cerci
  • Tympanum

9
Order Coleoptera
  • Beetles weevils
  • Complete
  • Chewing mouthparts
  • 4 wings
  • 1st pair hardened shell elytra
  • E, L2-4, P, A
  • Chewing larvae adults
  • Weevils have snout

10
(No Transcript)
11
Order Lepidoptera
  • Moths butterflies
  • Complete
  • Larvae chewing
  • Adults siphoning
  • 2 pairs wings
  • Covered in scales
  • E (on/in plants), L2-4, P, A
  • Moths
  • Filamentous antennae
  • Wings held flat
  • Butterflies
  • Clubbed antennae
  • Wings folded up

12
Order Hymenoptera
  • Ants, bees, wasps, sawflies
  • Complete
  • Larvae chew
  • Adults chew suck
  • 4 wings
  • Social insects
  • Pollinators predators
  • Female stingers,ovipositors

13
Order Diptera
  • True flies
  • Complete
  • Adults have biting,sucking, spongingmouthparts
  • Maggots have hook
  • 1 pair wings
  • Halteres
  • Complete

14
Order Dermaptera
  • Earwigs
  • Incomplete
  • Chewing mouthparts
  • Squirt foul liquid, inflict pinches
  • Few have functional wings
  • Omnivorous
  • Nocturnal
  • Abdominal forceps

15
Order Phasmatodea
  • Walkingsticks/ stick insects/ leaf insects/
    phasmids
  • Incomplete
  • Defense tactics
  • Noise
  • Smell
  • Postures
  • Colouration
  • Shedding legs
  • Some species
  • Winged
  • Reduced wings
  • Wingless
  • Temperate zones
  • No control necessary

16
Order Neuroptera
  • Lacewings antlions
  • Complete
  • Beneficials
  • 4 wings (finely veined)
  • Larvae are cannibalistic
  • Adults eat pollen,nectar or honeydew

17
Order Odonata
  • Dragonflies
  • Incomplete
  • All stages predaceous
  • 2 pairs of wings
  • Naiads

18
Order Mantodea
  • Mantids, praying mantis
  • Incomplete
  • Beneficial
  • Large front legs
  • Spined for holding prey
  • Uses camouflage
  • o/w in egg sac
  • One generation/yr

19
Order Collembola
  • Springtails
  • None
  • Egg
  • Young just smaller than adult
  • Wingless
  • Furcula
  • Scavengers
  • Decompose organic matter
  • Most abundant soil-dwellers
  • Less than 6mm

20
Order Isoptera
  • Termites (subterranean, rottenwood)
  • Incomplete
  • Only hemimetabolous insect that exhibits true
    social behaviour
  • Decomposers
  • Cannot digest wood fibers
  • Digestive system contains symbioticprotozoa or
    bacteria
  • Termites live on the by-products
  • Annual loss in US
  • 800 million

21
Order Blattodea
  • Cockroach
  • Incomplete
  • Cosmopolitan
  • Human pathogens
  • Research tools
  • Physiology
  • Toxicology
  • dander allergies
  • Nocturnal
  • Madagascar hissing
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