Arthropod Vocab

Question 1

Flea lifecycle

Answer 1

Adult on host -> eggs fall off host -> L1 -> L2 -> L3-> pupate -> find new host and become adult

Question 2

Pediculosis

Answer 2

louse infestation

Question 3

Lice lifecycle

Answer 3

All on host! Adult-> egg on hair -> immature nymph -> molts -> adult
Holometabolous

Question 4

Holometabolous

Answer 4

Stages don’t all look like adult

Question 5

Hemimetabolic

Answer 5

All stages look like small adult

Question 6

Hypostome

Answer 6

anchors mite to host during bloodmeal

Question 7

Chelicerae

Answer 7

surrounds hypos tome of mite

Question 8

Palps

Answer 8

mite uses to find host

Question 9

Acariasis

Answer 9

mite infestation

Question 10

Mite lifecycle

Answer 10

All on host! egg -> larva (6 legs) -> nymph (8 legs)-> protonymph -> deudtronymph -> adult (8 legs)

Question 11

Tick lifecycle (3 host)

Answer 11

egg laid in environment- larvae hatch (6 legs)- find small mammal host- feed- fall off - become nymph (8 legs)- hop onto small mammal- feed- drop off- molt to adult (8 legs)- hop on large animal

Question 12

One host tick

Answer 12

complete both molts on host

Question 13

two host tick

Answer 13

first molt on host, second in environment

Question 14

Hard ticks

Answer 14

scutum, visible mouthparts, each stage feeds once, feeding takes days, adult lays eggs once

Question 15

Soft ticks

Answer 15

leathery coat, not visible mouthparts, feeds repeatedly, feeds for minutes or hours, lays eggs after each meal

Question 16

Cutaneous bot of cattle lifecycle

Answer 16

eggs glued on hair of cow- eggs hatch- larvae move through skin to SQ tissues of the back- warbles form with breathing holes- larvae molts two times- stage 3 larvae exits and falls to ground- pupate in soil- adult finds new host

Question 17

Myasis

Answer 17

maggot infection (any type of fly)

Question 18

Cuterebra life cycle

Answer 18

eggs laid near rabbit burrow- host moves by- hatch and larvae grabs on- migration- burrow SQ with breathing hole- larvae molt- larva emerge- burrows in soil and pupates- overwinters- adult fly emerges

Question 19

Screw worm life cycle

Answer 19

Adults lay eggs on wounds- eggs hatch- maggots feed on living flesh- mature larvae leave host and pupate in soil- adults emerge from pupae

Question 20

Ked life cycle

Answer 20

winged adult ked flies to a sheep- adult loses its wings when it lands- adults mate- adult female nourishes maggots within her uterus- maggots are born- maggots become pupae- pupae remain glued to sheep- mature to release an adult ked

Question 21

Sheep nasal botfly life cycle

Answer 21

deposit clutch onto nares of sheep- l1 larvae migrate into nasal passage- 2 further instars- l3 larvae migrate back, sneezed out- burrow into ground before pupating

Question 22

Stomach bot in horse lifecycle

Answer 22

eggs on hairs around lips- eggs hatch and larvae burrow- 2nd stage larvae migrate to stomach- mature larvae passed in feces- pupate in soil- release adults

Question 23

molting pouches in what species?

Answer 23

sarcoptic mange burrowing