Ectoparasites

Question 1

Mites

Answer 1

1. Dermanyssus gallinae - birds
2. Demodex canis
3. Psoroptes cuniculi - in rabbits
4. Sarcoptes scabiei
5. Otodectes cynotis - cat
6. Cnemidocoptes mutans

Question 2

Hard Ticks

Answer 2

1. Ixodes Ricinus
2. Haemaphysalis puncata
3. Dermacentor reticulatus

Question 3

Mites vs ticks

Answer 3

• Mites – small usually less than 1 mm. Palps and chelicercae
• Ticks – bigger, palps distally fused to form basis capitula

Question 4

chewing lice

insecta

Answer 4

1. Bovicola spp
2. Lipeurus - bird
3. Menacanthus stramineus – bird
4. Goniodes - birds

wingless, head wider than first thorax segment.

Question 5

suckling lice

insecta

Answer 5

1. Hematopinus suis – pig,cattle, horse
2. Pediculus capitis - head lice of man

wingless, head narrower

Question 6

flies (siphonaptera)

Answer 6

1. Ctenocephalides

Important comb on head and first thorax segment the teeth.

Question 7

Answer 7

Ctenocephalides

flies

Question 8

Answer 8

Pediculus capitis

head lice of man, Claws with spur

suckling lice

Question 9

Answer 9

Hematopinus suis – pig,cattle, horse

suckling lice

Question 10

Answer 10

Goniodes - birds

insecta - chewing lice

Question 11

Answer 11

Menacanthus stramineus – bird

insecta - chewing lice

Question 12

Answer 12

Lipeurus - bird

insecta - chewing lice

Question 13

Answer 13

Bovicola spp

insecta - chewing lice

Question 14

Answer 14

Dermanyssus gallinae.

• Quite small and dark, hairy. No other bird ectoparasite have that shape and size

mites

Question 15

Answer 15

Demodex canis

• Tiny, cigar shaped, striated rear body. Very short legs and short mouthpart

mites

Question 16

Answer 16

Psoroptes cuniculi

• in rabbit

mites

Question 17

Answer 17

Sarcoptes scabiei

mites

Question 18

Answer 18

Otodectes cynotis – cat

mites

Question 19

Answer 19

Cnemidocoptes mutans

mites

Question 20

Answer 20

Ixodes Ricinus - larvae

• 3 hosts
• 0.5 mm
• 6 legs
• Small black scutum, gray alloscutum

Hard ticks:

Question 21

Answer 21

Ixodes Ricinus - male

• 3 hosts
• 3 mm
• 8 legs
• Black scutum, orange alloscutum

Hard ticks:

Question 22

Answer 22

Ixodes Ricinus - female

• 3 hosts
• 2.5 mm
• 8 legs
• Black scutum over all dorsal surface

Hard ticks:

Question 23

Answer 23

Haemaphysalis puncata

• Has festoons on back of body, but brown in color

Hard ticks:

Question 24

Answer 24

Dermacentor reticulatus

• males have omaments