MYIASIS

3 types of myiasis

1. Accidental Myiasis

2. Obligatory Myiasis

3. Facultative Myiasis

Invaded an inappropriate host

accidental myiasis

accidental ingestion of eggs

accidental myiasis

eggs deposited in anus/ vulva; larvae migrate to the rectum, intestine or vagina

accidental myiasis

examples of accidental myiasis

1. Calliphora sp

2. Lucilia sp

3. Sarcophaga sp

4. Musca sp

requires a living host to complete their development and survive

obligatory myiasis

example of obligatory myiasis

1. Callitroga sp

2. Chryzomyia sp

3. Gasterophilus sp

4. Hypoderma sp

both in living and dead organic matter

facultative myiasis

types of facultative myiasis

1. primary facultative

2. secondary facultative

important families of myiasis flies

1. calliphoridae

2. sarchophagidae

3. oestridae

4. cuterebridae

common name of calliphoridae

blowflies

display metallic blue, green, copper, or black hues

calliphoridae (blowflies)

blowflies or calliphoridae are mostly scavengers of facultative parasites except

Cochliomyia hominivorax

Calliphora

blue bottle flies

lucilia

green bottle flies

phormia 

green bottle flies

chryzomyia

screw bottle flies

cochliomyia

screw bottle flies

cordylobia

skin bottle flies

booponus

foot bottle flies

scientific name of blue bottle flu

Calliphora vomitoria

2 degree invaders of sheep myiasis

blue bottle flies (Calliphora vomitoria)

scientifiic name for green bottle fly

Lucilia sericata

most important agent of myiasis

Lucilia sericata (green bottle fly)

blue bottle fly/ calliphora vomitoria

green bottle fly/ lucilia sericata

sarcophaga sp./ flesh flies

sarcophaga sp.

new world screw worm fly

Cochliomyia hominivorax

secondary screw worm fly

Cochliomyia macellaria

old worm screw fly

Chryzomyia bezziania

most important myiasis fly in the PH (negros and panay island)

Chryzomyia bezziania

scientific name of tumbu fly or skin maggot fly

Cordylobia anthropophaga

tumbu fly/ skin maggot fly (cordylobia anthropophaga)

tumbu fly/ skin maggot fly(cordylobia anthropophaga)

prefers to lay eggs on sleeping places with perspiration odor

tumbu fly

foot maggot fly

Booponus intonsus

• attack ruminants during dry season (laguna, quezon, leyte, mindanao)

• lameness; foot rot

Booponus intonsus