Arthropods 2

Question 1

Apterygota

Answer 1

Jumping Bristletails & Silverfish
wingless
simple life cycles
moult throughout life

Question 2

Flight, Pterygote; paleoptera

Answer 2

cannot fold wings against body

Question 3

Flight, Pterygote; neopterans

Answer 3

can fold wings against body

2 pairs of wings (some secondarily lost)

Question 4

Instars

Answer 4

immature stages of insects between moults

Question 5

Metamorphosis

Answer 5

substantial change that occurs between one developmental stage and another

Question 6

Hemimetabolous Insects

Answer 6

Incomplete metamorphosis

e.g.) some neopterans (earwigs, stoneflies…)

Question 7

Holometabolous Insects

Answer 7

Complete metamorphosis

e.g.) wasps, caddis flies, butterflies…, larva -> pupa -> adult

Question 8

Ancient lineages

Answer 8

e.g.) dragonflies, aquatic larvae

hemimetabolous

Question 9

Larval Forms

Answer 9

Polypod, Oligopod, Apod

Question 10

Fluid feeding

Answer 10

tube mouthpart (proboscis/rostrum)
muscle pharynx pumped
sometimes piercing (Hemiptera/Diptera)

Question 11

Hemiptera

Answer 11

buccula, labium, labrum, beak, stylets

Question 12

Diptera (true flies)

Answer 12

paired mandibles + maxillae = needle-like structures (stylets)
stylets enclosed by labium
expanded labium tip = labellum -> sponge up food

Question 13

Mosquitos

Answer 13

have barbed maxillae, labium sheath for mouthparts, labrum as tongue

Question 14

Walking on ceiling

Answer 14

1000s of hairs on 2/3 pads on foot

glands that secrete fluid lipoproteins 2 claws