Entomology

1
Entomology
2
Insects in Kansas

• Probably between 15 and 20 thousand species

3
What is an Insect?

• Invertebrates
• Exoskeleton
• 6 legs
• 3 body parts
• Head
• Thorax
• Abdomen

4
Arthropods

• Insects are Arthropods
• So are arachnids (spiders, ticks, and mites),
  centipedes and millipedes, crustaceans

5
Importance of Insects

• Some are harmful to humans - less than 100
  species
• Some are beneficial
• Most are neutral

6
Reproduction

• Separate sexes
• Pathogenesis
• Without fertilization

7
Metamorphosis (types of)

• None
• Gradual
• Incomplete
• Complete

8
Complete Metamorphosis

• Butterflies
• Houseflies
• Bees
• Beetles

9
Egg
10
Larva

• Maggots- flies
• Grub worms- beetles
• Meal worms- beetles
• Caterpillars- butterflies, moths

11
Caterpillar (larva)

• 6 legs

12
Pupa

• Sealed in a cocoon

• Resting stage
• Called chrysalises in butterflies

13
Dormancy

• A stage of inactivity in the life cycle

14
Adult
15
Molting

• The shedding of the exoskeleton to allow for
  growth

16
Major Orders
There are over 40 orders
17
Order Coleoptera

• Beetles

18
Order Diptera

• Flies
• Gnats
• Mosquitoes

19
Order Lepidoptera

• Moths
• Butterflies

20
Order Lepidoptera

• Luna Moth

21
Order Lepidoptera

• Monarch
• Viceroy

22
Order Hymenoptera

• Ants
• Bees
• Wasps

23
Order Hymenoptera

• Cicada Killer Wasp

24
Order Hymenoptera - Carpenter Ants
25
Order Orthoptera

• Crickets
• Grasshoppers
• Katydids

26
Order Isoptera

• Termites

27
Order Hemiptera True bugs

• Stink bugs
• bed bugs
• water strider

28
Order Homoptera
Cicada Aphids
29
Order Odonata

• Dragonflies

30
Order Mantodea

• Praying Mantises