Section 20.2- Orders of Insects and Their Economic Significance Flashcards
meaning of -ptera
wings
straight-winged insects
orthoptera
examples of orthoptera
crickets, grasshoppers, locusts, mantises
harmful effects of orthoptera
locusts- damage crops
roaches- household pest
benefits of orthoptera
mantises- kill and eat insects that damage plants
toothed insects
Odonata
examples of Odonata
dragonflies
damselflies
the name toothed refers to the shark toothlike projections on
mouthparts
benefits of Odonata
eat harmful insects
half-winged insects
Hemiptera
Hemiptera is made up
true bugs- bedbug, chinch big, squash bug, stinkbug
an insect with a half-wing design and piercing sucking mouthparts that it uses to suck sap from plants and body fluids from animals
entomologist’s definition of bug
same-winged insects
wings make a V shape
Homoptera
examples of Homoptera
cicada
leafhopper
treehopper
lac insect
aphid
scale winged insects
Lepidoptera
examples of Lepidoptera
butterflies
moths
T/F there are no real distinction between the butterfly and the moth
FALSE
Lepidoptera which appears more hairy
moth
two winged insects
diptera
insects with two wings and piercing-sucking or sponging mouths
Diptera
examples of Diptera
housefly
gnat
American hover fly
mosquito
sheath-winged insects
Coleoptera
insects of the order Coleoptera
beetles
membrane-winged insects
Hymenoptera
Hymenoptera includes the most common
social insects – ants, bees, wasps
a honeybee colony has three types of bees
queen (egg-laying female)
drones (males)
workers (non-egg-laying females)
does not rule colony, but is responsible for reporduction in the colony
queen
manage the bee colony
workers
substance worker bees produce that they feed to larvae
royal jelly
larger than worker bees ad have large eyes, strong wings, and broad bodies
drones
hymenopterans without wings that live in large colonies with each colony consisting of workers, males, and queens
ants
large worker ants that are equipped with large mandibles
soldier ants
a _______________ colony may have several queens
ant
God created the insect world to
benefit mankind
system which seeks to keep insect pests from entering a particular country
quarantine control
means of controlling insects which involves rotating crops, rescheduling the times of planting and harvesting etc. to minimize insect damage to particular crops
agricultural control
method of controlling pests that uses natural insect diseases, parasites, or predators to stop harmful insects
biological control
effective method of controlling insect pests which involves using insect hormones to sterilize particular insects or to prevent the metamorphosis of larvae into adults
insecticides or pesticides
chemical control
method of controlling pests in which farmers have modified crops to produce pesticides inside their own cells
genetic control
