Post on 18-Jan-2016
Entomology
Insects in Kansas• Probably
between 15 and 20 thousand species
What is an Insect?
• Invertebrates• Exoskeleton• 6 legs• 3 body parts
– Head– Thorax– Abdomen
Arthropods• Insects are
Arthropods• So are
arachnids (spiders, ticks, and mites), centipedes and millipedes, crustaceans
Importance of Insects• Some are
harmful to humans - less than 100 species
• Some are beneficial
• Most are neutral
Reproduction
• Separate sexes• Pathogenesis
– Without fertilization
Metamorphosis (types of)
• None• Gradual• Incomplete• Complete
Complete Metamorphosis
• Butterflies• Houseflies• Bees• Beetles
Egg
Larva
• Maggots- flies• Grub worms-
beetles• Meal worms-
beetles• Caterpillars-
butterflies, moths
Caterpillar (larva)
• 6 legs
Pupa• Resting
stage• Called
chrysalises in butterflies
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
•Sealed in a cocoon
Dormancy
• A stage of inactivity in the life cycle
Adult
Molting
• The shedding of the exoskeleton to allow for growth
Major OrdersThere are over 40 orders
Order Coleoptera
• Beetles
Order Diptera
• Flies• Gnats• Mosquitoes
Order Lepidoptera
• Moths• Butterflies
Order Lepidoptera
Luna Moth
Order Lepidoptera
Monarch
Viceroy
Order Hymenoptera
• Ants• Bees• Wasps
Order Hymenoptera
• Cicada Killer Wasp
Order Hymenoptera - Carpenter Ants
Order Orthoptera
• Crickets• Grasshoppers• Katydids
Order Isoptera • Termites
Order Hemiptera – True bugs
• Stink bugs• bed bugs• water
strider
Order Homoptera
CicadaAphids
Order Odonata
• Dragonflies
Order Mantodea
• Praying Mantises