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