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Insects Common Insects Names of Common Insects

This document discusses common insects and their characteristics. It provides examples of common insects like houseflies, cockroaches, locusts, mosquitoes, fleas, ticks, wasps, bedbugs, grasshoppers, ants, butterflies and bees. It then lists three main characteristics of insects: they have six legs, three main body parts, and breathe through spiracles. The document goes on to classify insects as useful or harmful, providing examples of each and how they impact humans and plants. Useful insects include grasshoppers, bees, white ants, moths and butterflies. Harmful insects are those that spread disease or damage crops, like houseflies, bedbugs, termites and mosquitoes

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1K views6 pages

Insects Common Insects Names of Common Insects

This document discusses common insects and their characteristics. It provides examples of common insects like houseflies, cockroaches, locusts, mosquitoes, fleas, ticks, wasps, bedbugs, grasshoppers, ants, butterflies and bees. It then lists three main characteristics of insects: they have six legs, three main body parts, and breathe through spiracles. The document goes on to classify insects as useful or harmful, providing examples of each and how they impact humans and plants. Useful insects include grasshoppers, bees, white ants, moths and butterflies. Harmful insects are those that spread disease or damage crops, like houseflies, bedbugs, termites and mosquitoes

Uploaded by

katy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Insects

Common Insects
Names of common insects;
Housefly, cockroach, locust, mosquito, flea, tick,
wasp, bedbug, grasshopper, ants, butterfly, bee

Insects are living things.


They reproduce by laying eggs.

Characteristics of an insect.
(i) An insect has six legs.
(ii) An insect has three main body parts.
(iii) An insect breathes through spiracles.

housefly butter fly


cockroach, grasshopper

Activity;
1. Give any four examples of common insects.
(a) _________________________
(b) ________________________
(c) _________________________
(d) ________________________
2. Name any two characteristics of insects.
(a)
______________________________________________
(b)
______________________________________________
Useful/good insects.
These are insects that are good/useful to us.

Examples:
Grasshoppers, bees, white ants, bees, moth,
butterflies

These insects help us in different ways;


(a) We use some of them as food e.g. white ants,
grasshoppers
(b) Bees make honey.
(c) Some insects help to pollinate flowers. E.g.
butterflies, moth and bees.
Activity:
1. Name three examples of useful insects.
2. Why are grasshoppers and white ants important to
people?
3. What do the bees give us?

Harmful/bad insects.
Harmful insects are insects that are dangerous or
cause injury to people or plants.

Examples:
Houseflies, bedbugs, termites, mosquitoes,
cockroaches, caterpillars, tsetse flies, locusts,
banana weevils, cotton stainer, bean weevils,
A spider is not an insect because it has eight legs and
two main body parts.

How these insects are harmful:


- Houseflies carry germs which cause diseases
like cholera, dysentery, diarrhoea, typhoid,
trachoma, conjunctivitis.
- Tsetse flies spread sleeping sickness to people
and animals
- Mosquitoes spread malaria.
- Bean weavils eat bean seeds
- Cotton stainer stains cotton.
- Caterpillars eat leaves of plants
- Banana weavils eat banana stems
- Termites eat stems, roots of plants and spoil our
homes

Activity:
1. Name one disease spread by houseflies
2. Give three examples of harmful insects
3. What insects spread malaria?
4. What do we call insects that make holes in seeds?

Parts of an insect.
An insect has 3 main body parts. (Abdomen, thorax,
head)

Other body parts of an insect

a b
c

g
d

h e
a. feeler/antenna b. eye c. wing d.
leg
e. spiracles f. head g. thorax
h. abdomen

A. Activity:
(i) Pupils will draw the above insect and name it.
(ii) How many legs has a true insect?
(iii) On which body part of an insect do we find the
legs?
(iv) Where does an insect breathe from?
Environment are things around us.
Surroundings

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