Presentation

FLY PARASITES

FLY LIFE CYCLES - BASIC PATTERNS (1)

LARVA FREE LIVING,

ADULT PARASITIC

complete metamorphosis via pupa stage

MOSQUITO larvae live in water, feed on microorganisms

MOSQUITO adults fly to hosts and feed on blood

FLY PARASITES

FLY LIFE CYCLES - BASIC PATTERNS (2)

LARVA DEVELOPS IN MOTHER

ADULT PARASITIC adult without larva

larva in mother

eg: TSETSE, SHEEP KEDS, LOUSE FLIES

FLY PARASITES

FLY LIFE CYCLES - BASIC PATTERNS (3)

LARVA PARASITIC

ADULT FREE LIVING

BOT FLY larva burrows in live tissue of host

BOT FLY adult does not feed, only disperses and reproduces

FLY REPRODUCTIVE STRATEGIES MANY OFFSPRING - LOW SURVIVAL FLY PARASITES

MOSQUITOES - ~ 4 batches of 200 eggs,

2 week larval development

FEW OFFSPRING - HIGH SURVIVAL

WARBLE FLIES ~ 2 batches of 50 eggs,

1 year larval development

LIFE CYCLE OF LUCILIA BLOWFLY (This is facultative myiasis, larvae can survive on carrion) FLY PARASITES

adult 3 larval stages on dead or live host

pupa in soil

eggs or

LIFE CYCLE OF HYPODERMA WARBLE FLY (An obligate myiasis, specialised for live cattle)

FLY PARASITES

female seeks cattle for egg laying larva burrows in flesh of cattle

eggs laid on leg

mature larva pupates in soil