athropods Flashcards
What is the lifecycle of ixodes holocyclus? How many hosts is needed to complete the life cycle?
3 host life cycle
Egg –> Larvae (3 pairs of legs) –> Nymph (4 pairs of legs) –> Adult (4 pairs of legs)
What is the life cycle of rhipicephalus microplus (Boophilus)? How many hosts needed for a complete lifecycle?
1 host lifecycle
Egg (in grass) –> Larvae (3 pairs of legs/ in grass) –> Nymph (4 pairs of legs/ on host) –> Adult (4 pairs of legs/on host)
What is the life cycle of rhipicephalus linnaei? How many hosts are needed for complete lifecycle?
3 host lifecycle (from dog to dog)
Egg –> Larvae (3 pairs of legs/ host 1) –> Nymph (4 pairs of legs/ host 2) –> Adult (4 pairs of legs/host 3)
What is the lifecycle of ornithodoros moubata? How many hosts?
Multi-host lifecycle
egg –> larval (non-feeding) –> multiple nymph stages –> adult
What is the life cycle of Bovicola bovis, pedicularis capitus, and pedicularis humanis ? What number of hosts are needed?
1 host
egg –> nymph –> nymph –> nymph –> nymph –> adult
- all louse lifecycles are the same!
What is the lifecycle for the sarcoptes scabiei? Hpw many hosts are needed?
1 host
egg –> larvae (3 pairs of legs) –> nymph (4 pairs of legs) –> adult (4 pairs of legs)
What is the life cycle of demodex canis? How many hosts are needed?
1 host
egg –> nymph (3 pairs of legs) –> nymph (4 pairs of legs) –> adult (4 pairs of legs)
What is the lifecycle of the trombiculid mite (chigger)? How many hosts?
1 host (only for larval stage)
egg –> larvae –> nymph –> adult
*larvae are the parasitic stage while adult stage MIGHT be a vector for pathogens (ie. protozoa/bacteria etc).
What is the lifecycle of ctenocephalides felis and echidnophaga gallenacea? How many hosts?
1 host (during adult stage to feed)
eggs –> larvae –> pupae –> adult flea
What is the life cycle of dermatobia hominis (human botfly) and sarcophaga sp.? How many hosts?
2 hosts
eggs (on host 1 - a vector eg. mozzie) –> larvae (hatch in host 2) –> pupae (free) –> adult (free)
What is the lifecycle of lucilia cuprina (sheep botfly)? How many hosts?
1 host (usually sheep)
eggs (host) –> larval (host/free) –> pupae (free) –> adult (free)
What is the lifecycle of culex sp.? How many hosts?
1 Host (adult for feeding)
eggs, larvae, pupae, adult
What is the lifecycle of chrysomyia bezziana? How many hosts?
1 host
eggs (host) –> larvae –> pupae –> adult
What is the life cycle of culicoides brevitarsis? How many hosts?
1 host
egg, larvae, pupae, adult
