Task 7. "Squads of insects"

Topic: Type Arthropoda (Arthropoda). Class Insects (Insecta)

Task 1. “Insects”

Write down the question numbers and missing words (or groups of words):

  1. The class Insects includes arthropods that breathe with (_) and have (_) legs.
  2. The body of insects is divided into sections – (_).
  3. The chest always consists of (_) segments – (_), (_) and (_).
  4. Body cavity (_).
  5. Circulatory system (_).
  6. The heart is located (_).
  7. Blood flows from the heart (_).
  8. Blood does not perform the function (_).
  9. The excretory system is represented by (_), which open at (_).
  10. The nervous system of insects is represented by (_).

Task 2. “Insect structure”

Look at the picture and answer the questions:

1. What is indicated in the figure by the numbers 1 – 24?

Task 3. “The internal structure of the insect”

Look at the picture and answer the questions:

1. What is indicated in the figure by the numbers 1 – 10?

2. What functions does the circulatory system perform?

Task 4. “Development of insects”

Look at the picture and answer the questions:

1. What type of development does the insect depicted under the letter A have? Under the B?

2. What is indicated in the figure under the numbers 1 – 4?

3. In insects of which orders (Orthoptera, Lepidoptera, Diptera, Dragonflies, Hymenoptera, Coleoptera) develop with complete and incomplete transformation?

Task 5. “Development of insects”

Look at the picture and answer the questions:

1. What insects are shown in the picture? What squads do they belong to?

2. In which of the presented insects does development occur with incomplete transformation?

3. In which of the presented insects does development occur with complete transformation?

Task 6. “Squads of insects”

Draw and complete the table:

Squads of insects Type of development Representatives Biological features
dragonflies
Orthoptera
Homoptera
Hemiptera
Lepidoptera
Coleoptera
Diptera
Hymenoptera

Task 7. “Squads of insects”

Write down the numbers of tests, against each – the correct answers

** Test 1. What features are characteristic of insects from the Dragonfly order (a)? Orthoptera (b)? Bedbugs (in)?

1. Development with complete transformation.

2. Development with incomplete transformation.

3. Two pairs of wings.

4. One pair of wings, the second is reduced (halteres) and serves to stabilize the flight.

5. The first pair of wings are turned into rigid elytra, the second pair are leathery wings.

6. The elytra are dense in front and soft in the back; the second pair of wings is used for flight.

7. The forewings are denser than the hindwings.

8. There are small chitinous scales on the wings.

9. Mouth apparatus in adult insects of the sucking type.

10. Mouth apparatus licking type.

11. Mouth apparatus in adult insects of piercing-sucking type.

12. In larvae, the mouth apparatus is of a gnawing type.

13. Hind legs in many representatives of the jumping type.

14. The larva has a mask.

** Test 2. What features are characteristic of insects from the Butterfly order (a)? Diptera (b)? Hymenoptera (c)?

1. Development with complete transformation.

2. Development with incomplete transformation.

3. Two pairs of wings.

4. One pair of wings, the second is reduced (halteres) and serves to stabilize the flight.

5. The first pair of wings are turned into rigid elytra, the second pair are leathery wings.

6. The forewings are denser than the hindwings.

7. The elytra are dense in front and soft in the back; the second pair of wings is used for flight.

8. There are small chitinous scales on the wings.

9. Mouth apparatus in adult insects of the sucking type.

10. Mouth apparatus licking type.

11. Mouth apparatus in adult insects of piercing-sucking type.

12. In larvae, the mouth apparatus is of a gnawing type.

13. Hind legs in many representatives of the jumping type.

14. The larva has a mask.

** Test 3. Indicate which of these representatives belongs to the order Diptera (a), Hymenoptera (b), Lepidoptera (c), Coleoptera (d), Orthoptera (e).

Malarial mosquito, cabbage whitefish, whitefly rider, gravedigger beetle, stag beetle, bumblebee, bull gadfly, fly, Maybug, locust, grasshopper, honey bee, red ant.

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