1. Common Georgia Insects

2. Common Georgia Insects
Crickets: male vs. female shown
Camel crickets
Mole crickets

3. Common Georgian Insects
Hercules Beetle
Large green with brown spots
Male has horn
Largest beetle in North America

4. Common Georgia Insects
Luna Moth
Locally endangered due to pollution
Males have more feathery antenna to pick up females pheromones.

5. Common Georgia Insects
Kudzu bug
Not that common
Invasive insect
Eats kudzu (good) but starting to eat soybean crop (bad)
Gives off stinky smell

6. Common Georgia Insects
Cicadas
Live underground for up to 17 years
Come out in masses
Leave husk on tree at final molt
Make “summer noise”
Cicadas: the familiar sound of summer - CBS News Video

7. Common Georgia Insects
Velvet Ants (aka Cow killers)
Actually female wasps
Males have wings
VERY PAINFUL STING

8. Zoology 11/7 1. Notes-Insect behaviors and social structure
Upcoming-Arthropod Unit
Summative-11/12
Vocab quizzes
Chelicerates 11/9
Zoology 11/7
1. Notes-Insect behaviors and social structure
2. Life of insects video

9. Insect Behavior and Metamorphosis

10. PHEROMONES Sex- excite or attract opposite sex
Trailing- laid down by foraging insects to help other members of colony find food.
Alarm- warn others of danger
Caste regulating- used by social insects to control the development of certain individuals in a colony.

12. SOCIAL INSECTS Ants, termites, most bees & wasps
Traits of social insects
Parental care of young
Several generations present in same location
Division of labor

13. DIVISION OF LABOR Reproductive caste Queen-
produces eggs to maintain colony.
Regulates sex of offspring
Parthenogenesis
Unfertilized eggs- males
Fertilized eggs- females

14. Queen termite

15. Division of Labor
b. Drones- mate with new queens

16. Division of Labor Worker caste Sisters, all daughters of queen
Care for the eggs, larvae, queen & drones.
Forage for food
Maintain the nest
Workers have gland in head that secretes royal jelly.
This pheromone-laced liquid determines the larvae’s roll in the colony.
Future workers receive jelly for 1st 3 days.
Future queens receive jelly throughout larval stage.

17. Division of Labor f. Soldiers- defend the nest
Bees & wasps do not have soldier insects.

18. Inside a Termite Mound
Mound is made of soil, termite saliva, and dung.
Top has chimneys w/tunnels that draft hot air out of mound.
Cool air enters near bottom of nest. Temperature control is important for growth of fungi(food).This is also where termites enter & exit.
Termites live in bottom of nest underground
Chambers for storing wood & growing fungus (food) underground

19. Solitary Insects Social Insects
Advantages
Hide from predators
No immediate competition
Live in small spaces
Exploit small food resources
Group defense & alarm
Food gathering
Nest building
Care of young
Disadvantages
Lack of social benefits
Intense predation
Parasitism
disease

20. Other Insect Behaviors
ANT SLAVERY-
Some ant species invade others nest & steal larvae. They take them back to the nest where they become workers.
ANT FARMING-
Some will “herd” aphids & protect them from predators. Aphids supply sweet liquid- honey dew which ants eat.
Leaf cutter ants collect plants, compost it, and use it to grow fungus which they eat.

21. Paurometabolus Metamorphosis
Incomplete metamorphosis
Egg
Nymph- look like small adults
Lack reproductive organs
Lack wings
3. Adults- after several molts, reproductive organs & wings are grown.

22. Holometabolus metamorphosis
Complete metamorphosis
Egg
Larvae- wormlike (grubs- beetle larvae)
No reproductive organs
No wings
Must eat constantly to store enough energy for pupa stage
Pupa- inactive stage
May be surrounded by cocoon (moths).
Body is undergoing radical change.
Adult- emerges w/ reproductive organs & wings.

23. ECONOMIC/ENVIRONMENTAL SIGNIFICANCE BENEFICIAL HARMFUL
Provide products
EX: wax, honey, silk
Parasites (fleas, lice)
Pollinate 65% of all plant species (food crops)
Vectors for disease (fleas spread bubonic plague)
Control harmful insect population (praying mantis)
Destroy $5 billion in crops annually
Medicinal purposes (bee venom for M.S. and maggots for sores that won’t heal.)
Some people are allergic (bees)
Can cause death
Soil insects aerate the soil & decompose
Provide food source for many cultures

25. C The reproductive males in a social insect colony are called?
a. Drones b. Workers c. nymphs
Immature insects lack reproductive organs & ___.
Mouths b. Wings c. Respiratory organs
Use the diagrams below to answer questions 3-5.
Which organism is the nymph?
Which organism is the pupa?
Which of these is holometabolous metamorphosis? C A B D E