Insects Flashcards
How much of the Animal Kingdom is made up of insects?
three-fourths
How many parts make up an insect’s body?
three
What are the insect’s body parts called?
head, abdomen and thorax
An insect’s body is divided into….
Rings
How does an insect breathe air?
through breathing holes along the sides of its body called “spiracles”
Name four facts about insects.
- Body is made of rings (Spiracles)
- Body is divided into three parts (head, thorax & abdomen)
- Six Legs
- Two or four wings
Living things are classified into these groups:
Kingdom, Phylum, Class, Order, Family, Genus, Species
Insects are in the Phylum….
Arthropod
Three characteristics of arthropods
Jointed legs, exoskeleton and segmented body
What does “Arthropod” mean?
“Jointed Legs”
How can we tell arthropods apart?
We tell them apart based on how many legs they have.
How many legs does each class of arthropod have?
- Insects: 6
- Arachnids: 8
- Crustaceans: 10
- Centipedes / Millipedes: A lot!
How many insects do scientists guess there are?
30 million
Insects are separated into groups based on characteristics. What are these groups called?
Orders
Insect orders are defined by the shape of….
their body parts.
The eight orders of insects that we have learned are:
- Odonata 5. Diptera
- Orthoptera 6. Coleoptera
- Dictyoptera 7. Lepidoptera
- Hemiptera 8. Hymenoptera
In what order do the insects have strong hind legs for jumping?
Order Orthoptera
What is special about the wings of insects in Order Hemiptera?
The first half of the wing is rough but the tip is smooth.
How many wings do flies have?
Two
What do we call the special way insects grow?
Metamorphosis
What does “Lepidoptera” mean?
“Scaly Wings”
What does “metamorphosis” mean?
Change in shape
What are the two different ways an insect can grow?
Complete Metamorphosis
and
Incomplete Metamorphosis
What are the three stages of incomplete metamorphosis?
Egg, Nymph and Adult
What are the four stages of complete metemorphosis?
Egg, Larva, Pupa, Adult
What stage of complete metamorphosis is worm-like?
Larva Stage
What are two names of insect larva?
Caterpillar
Grub
Maggot
What is the name of the case made of silk that an insect wraps around its body in complete metamorphosis?
Pupa
