Class Insecta: Order Odonata and Order Orthoptera

Question 1

Order Odonata

Answer 1

• dragonflies
• 5000 species
• aquatic nymphs
• have head, thorax and abdomen

Question 2

Order Orthoptera

Answer 2

• grasshoppers, crickets and mantids

- these are insects with chewing mouth parts

Question 3

grasshoppers and locusts

Answer 3

• 10,000 species
• have swarming behavior (biblical plagues of Egypt) that covers hundreds of square miles, consisting of billions of locusts

Question 4

mantids

Answer 4

• 2300 species
• are masters of camouflage
• most species make use of protective coloration to blend in with the foliage or substrate to avoid predation and to enhance the capture of prey

Question 5

raptorial legs (mantids)

Answer 5

discoidal spines, tooth-like tubercles and an apical claw (used for grasping of prey)

Question 6

crickets

Answer 6

• 900 species

- chirp at different rates depending on its species and temperature of their environment

Question 7

Dolbears Law

Answer 7

the relationship between temperature and the rate of chirping. According to this law it is possible to calculate the number of chirps based on the temperature

• Fahrenheit: count # of chirps in 14 seconds and then add 40 to get temp
• Celcius: count # of chirps in 25 seconds divide by 3 and then add 4 to get temp

Question 8

crickets (other)

Answer 8

• are popular live food source for pet frogs, lizards, salamander and spiders
• are also eaten by humans in some african and asian cultures, they are considered a delicacy