Insect Morphology Flashcards Preview

Entomology > Insect Morphology > Flashcards

Flashcards in Insect Morphology Deck (16)
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1
Q

What is hypognathous?

A

The head is vertical and the mouth is facing downwards

2
Q

What is prognathous?

A

The head is horizontal, mouthparts are anterior (in front)

3
Q

What is opisthognathous?

A

The head is vertical, mouthparts are posterior (face to the back of the insect)

4
Q

Name the segments of the leg in order starting from the body

A

Coax, trocanter, femur, tibia, tarsus, claw

5
Q

What is the function of sensillae?

A

They measure pressure, stress, smell and are used to taste substrates

6
Q

Why are legs covered in sensilla?

A

To plan the next motor activity

7
Q

What order does wing venation go in?

A

Costa, sub-costa, radius, media, cubitus and anal

8
Q

What are the pigmented spots on the wings called?

A

Pterostigma

9
Q

What are halteres?

A

Sensory organs on the wings for movement

10
Q

Name the three thoracic segments

A

Prothorax, mesothorax and metothorax

11
Q

Give the name of the top, middle and bottom of the abdomen

A

Tergite, pleurite and sternite

12
Q

Give the positions of the aorta, gut and nerve cord

A

Aorta is dorsal, gut is central and nerve cord is ventral

13
Q

What is the Antennapedia gene?

A

It is a hox gene that specifies transcription factors for the anterior/posterior pattern

14
Q

Where are the highest levels of the Antennapedia gene?

A

In the central portion of the 2nd thoracic segment where an adult leg is produced

15
Q

What are the four segments of the brain?

A

Archicerebrum
Prosocerebrum/Protocerebrum
Deutocerebrum
Tritocerebrum

16
Q

What are the direct flight muscles attached to?

A

Sclerites: hardened bits of cuticle at the base of the wing