Parasitology Test 3 - Flies Iii

Front 1

what is myiasis?

Back 1

invasion of tissue by dipterous larvae

Front 2

what is the common name for calliphoridae?

Back 2

bottle flies or blow flies and screwworm flies

Front 3

what is the common name for gasterophilidae?

Back 3

horse bot

Front 4

what is the common name for Hypodermatidae?

Back 4

cattle grub, warble or heel fly

Front 5

what is the common name of oestridae?

Back 5

nose bot

Front 6

what is the common name cuterebridae?

Back 6

emasculating fly, skin bot

Front 7

what is the morphology of Calliphoridae?

Back 7

slightly larger than Musca, bright metallic color

Front 8

what is the life cycle of Calliphoridae?

Back 8

eggs laid in carrion or decaying vegetable matter, diseased tissue or in wounds, and hatch in 24 hours. After a week of feeding larvae drop to ground or crawl to a dry area and form puparium. Adults emerge in a month

Front 9

what is the pathology of Calliphoridae?

Back 9

maggots may infect wounds or soiled wool or hair coat. If area is not treated, healthy tissue is invaded

Front 10

what is the common name of Cochliomyia hominivoraux?

Back 10

primary screwworm

Front 11

what is the life cycle of Cochliomyia hominivoraux?

Back 11

females deposit batches of 10-400 eggs in shingled masses on edge of wound > larvae feed on living tissue for 3-5 days > female fly copulates once

Front 12

how was Cochliomyia hominivoraux eradicated from S. US?

Back 12

release of irridated pupae

Front 13

what is the pathology of Cochliomyia hominivoraux?

Back 13

a true parasite. Lives only in the living flesh of warm-blooded animals. Only a small break in integument will permit infestation

Front 14

what species are in the family Gasterophilidae?

Back 14

Gastrophilus intestinalis, Gastrophilus nasalis, Gastrophilus haemorrhoidalis

Front 15

what is the common name of Gastrophilus intestinalis?

Back 15

horse bot fly

Front 16

what is the common name of Gastrophilus nasalis?

Back 16

throat bot fly

Front 17

what is the common name of Gastrophilus haemorrhoidalis?

Back 17

nose bot fly

Front 18

what is the morphology of all bot flies?

Back 18

large, heavy bodied like honey bees or bumble bees but hey lack mouth parts

Front 19

what is the morphology of Gasterophilidae?

Back 19

3rd stage larvae are mature bots, 1-2 cm long, 0.5-1cm in diameter. Respiratory spiracles identify genera

Front 20

what is the life cycle of Gasterophilidae?

Back 20

adult flies emerge during latter half of the summer and live for about 3 weeks. Larvae penetrate the mucosa of the cheek, gums and tongue for about a mnth then pass to the stomach.

Front 21

where does Gastrophilus intestinalis lay eggs?

Back 21

fetlock and forelegs, requires licking to hatch, attach near cardiac region

Front 22

where does Gastrophilus nasalis lay eggs?

Back 22

intermandibular area, hatch spontaneously in about 5-10days, attach near pylorus in the duodenum, attach, larvae (bot) remain in the horse for 8-10 months then pass out in feces > pupation takes place in loose dirt > 3-5 weeks adults emerge mid summer

Front 23

where does Gastrophilus haemorrhoidalis lay eggs?

Back 23

nose and cheek, hatch spontaneously in 5-10days

Front 24

what is the pathology of Gasterophilidae?

Back 24

adult flies annoy horses. Heavy infestation may damage mucosa of mout hand stomach and may block the pyloris

Front 25

what is the common name of Hypoderma bovis?

Back 25

northern cattle grub

Front 26

what is the common name of Hypoderma lineatum?

Back 26

cattle grub

Front 27

what is the life cycle for Hypodermatidae?

Back 27

females lay as many as 800 eggs on hairs of cattle's legs, hatch in about4 days and crawl down hair and penetrate skin. Both species cut holes in the skin of the thoracolumbar region. After 5-10 wks in subcutaneous cysts on the back, larva enlarges hole, works its way out and falls to the ground

Front 28

what is the life cycle for Hypoderma lineatum?

Back 28

migrates in CT to the esophageal submucosa where it remains until midwinter and then migrates down the esophagus to the diaphragm up through loin muscle to a subcutaneous location on the back

Front 29

what is the life cycle for Hypoderma bovis?

Back 29

migrates throug the spinal canal and muscles of the back to subcutaneous tissues

Front 30

what is the pathology of Hypodermatidae?

Back 30

killing bots in the spinal canal or esophagus leads to paralysis or bloat. Treat soon after fly season. Do not delay

Front 31

what are the consequences of Hypodermatidae?

Back 31

cattle have instinctive fear of adult flies and may stampede, migration of larvae through loin muscles results in tracts and condemnations, hides punctures by larvae are downgraded

Front 32

what is the common term for Family Oestridae?

Back 32

head maggots

Front 33

what is the common name for Oestrus ovis?

Back 33

sheep bot

Front 34

what is the life cycle for Oestridae?

Back 34

larvae deposited in the nostrils of sheep and goats during summer or early autumn. Larvae crawl up nostrils into sinuses where they attach to mucosa and feed. By spring, larvae are developed and crawl down nostrils to be sneezed out

Front 35

what is the pathology of Oestridae?

Back 35

heavy infestation can be fatal if there is penetration into the cranium. Animals show great distress by sneezing and shaking of head, loss of appetite and a purulent discharge

Front 36

what is the common name for Family Cuterebridae (ie Cuterebra spp?)

Back 36

emasculating fly

Front 37

what is the life cycle of Cuterebra spp?

Back 37

fly lays eggs at rodent borrow entrance. Mechanical stimulation (rodent, predator) causes larva to come out of nits nad move onto and into host. Enter host through natural orifice (nose, mouth, eye orbit.)

Front 38

what is the pathology of Cuterebra spp?

Back 38

subcutaneous cyst containing bot at head or neck of dogs and cats and squirrels. In rodents, enters the scrotum

Front 39

what is the treatment of Cuterebra spp?

Back 39

do not rupture bot, attempt to remove by applying vaseline to cover spiracles and or blunt dissection to enlarge opening

Front 40

what is the common name for Dermatobia hominis?

Back 40

human skin bot

Front 41

what is the life cycle for Dermatobia hominis?

Back 41

eggs laid on a mosquito or stable fly (slave fly). Larvae hatch and enter host upon with the slave fly is feeding

Front 42

what is the pathology of Dermatobia hominis?

Back 42

subcutaneous cyst containing bot in man, cattle, sheep and other mammals in Central and South America