Blowflies, Fleshflies, Wrable/Botflies

Question 1

What is myiasis?

Answer 1

Fly larvae infestation of vertebrates

Question 2

What is facultative myiasis?

Answer 2

Accidentally develops in wounds (originally in dung)

Question 3

Obligatory myiasis?

Answer 3

REQUIRES a wound/inner part of animals

Question 4

Males or females causing myiasis?

Answer 4

Females- they lay their eggs that will pupate in the environment/soil
But both sexes behave and feed similarly

Question 5

What are the agents of traumatic myiasis? =myiasis sensu stricto

Answer 5

Blowflies
Fleshflies

Larvae need AIR so they develop superficially

Question 6

Blowflies

Answer 6

Family: Calliphoridae
Metaliic bluish/green
Females lays eggs on the surface of larval development

Question 7

Blowflies: Lucilla and Phormia sp

Answer 7

Mainly on decaying animals

Exceptionally on animals

Question 8

Blowflies: Cochliomyia

Answer 8

Skins of animals and humans

Leaves holes in the skin

Question 9

Blowfly: Green Bottle fly

Answer 9

Lucilla sericata
Facultative myiasis
Can be used in larva therapy- for removing decayed part of wounds

Question 10

Australian sheep blowfly

Answer 10

Lucilia cuprina
Facultative myiasis
Gold body
Red eyes

Can lay eggs in the dried dung of the sheep, which can then infect the anus
Birds also

Question 11

The new word Screw worm fly

Answer 11

Cochliomyia hominivorax

Obligate myiasis

Question 12

Fleshflies

Answer 12

Family: Sarcophagidae

Question 13

In general about fleshflies

Answer 13

Worldwide
Develop in putrid organic materials
Females lay 1st instar larvae to surface of larval development

Question 14

Appearance of fleshflies

Answer 14

Dull grey, mottled abdomen
Looks like they have a bumpy back
Red eyes

Question 15

Fleshflies: sarcophaga species

Answer 15

Decaying materials

Spiraculum on maggots

Question 16

Wohlfahrtia magnifica sp

Answer 16

Skin/wounds/natural openings of animals (genitals)
Foot sores
Ears
Close to the base of horns

Question 17

What are the agents of non-traumatic myiasis= myiasi sensu lato

Answer 17

BOTFLIES!!
Flies develop INSIDE the body, quite deep (for sure they must be underneath the skin)
The larvae develop internally- do not get in touch with the outer environment

Question 18

Botflies are also known as

Answer 18

Warble flies

Question 19

In general about botflies

Answer 19

Family: Oestridae
Parasitic
The larvae feed and grow inside the host
Adults cannot feed but can REPRODUCE

Question 20

Oestridae subfamilies

Answer 20

Cuterbrinae- skin of rodents
Hypodermatinae- tissues of Ru
Gasterophilinae- stomach of odd-toes mammals
Oestrinae- nasal sinuses of ungulates

Question 21

Subfamily: Hypodermatinae

Answer 21

Large
Resemble bumble bees
No mouth part
Maggots are white grubs with spines, turn black before they pupate in the environment

Question 22

Wandering larvae of cattle

Answer 22

Hypoderma bovis sp

Hypoderma lineatum

Question 23

Hypoderma bovis sp

Answer 23

Travels from CT– spinal canal– subcut on back

Question 24

Hypoderma lineatum

Answer 24

Travels from CT– esophagus– SC tissue of the back

Question 25

Human botfly

Answer 25

Sarcophagid | Has red eyes

Question 26

Subfamily: Gasterophilinae

Answer 26

Larvae develop in the stomach of the host Larvae have spiracles: L1 has one spiracle and so on... Resemble honeybees 3rd instar grubs are red and have strong spines Eggs look similar to nits of lice BUT nits have operculum Affects horses- prevention with Noromectin

Question 27

Gasterophilinae species

Answer 27

Gasterophilus: - intestinalis - nasalis - haemorhoidalis - pecorum

Question 28

Gasterophilus intestinalis

Answer 28

Eggs on shoulder | Development in oral cavity

Question 29

Gasterophilus nasalis

Answer 29

Eggs on lips | Development in oral cavity, pylorus, duodenum

Question 30

Gasterophilus haemorhoidalis

Answer 30

Eggs on lips | Development in oral cavity, stomach and rectum

Question 31

Gasterophilus pecorum

Answer 31

Eggs on grass | Development in oral cavity and pylorus

Question 32

Nasal botflies

Answer 32

Subfamily: Oestrinae Ungulates The only oestrus genus that occurs in livestock Female lays 1st larva (3 larval stages) this develops to GRUB Grub: banded, medium spines ventrally, feeds on mucus in nasal passages and sinuses

Question 33

Oestrus Ovis

Answer 33

``` SHEEP Greyish adults with mottled surface Secondary bacterial infection causes false grid: -incoordination -purulent ethmoiditis and encephalitis ```