VMED 5236: Veterinary Parasitology
Review Questions Lectures 5-8 (Latest
Update 2025)
What do the terms holometabolus and heterometabolus refer
to in terms of life cycles of arthropods? - Correct Answer
✅-Holometabolus: complete transformation; egg, larva,
pupa, adult
-Heterometabolus: incomplete transformation, nymphs
resemble adult; egg, nymph, adult
In each of the two life cycles (holometabolus and
heterometabolus), what is the stage that leaves the egg? -
Correct Answer ✅Holometabolus: larva; Heterometabolus:
nymph
To which phylogenetic orders do the flies, lice, and fleas
belong? - Correct Answer ✅Flies: Diptera; Lice:
Phthiraptera; Fleas: Siphonaptera
What are the three suborders of the dipterans (flies) and how
do their antennae differ between suborders? - Correct
Answer ✅Nematocera: bead-like antennae; Brachycera: 3
different segments; Cyclorrhapha: 3 different segments with
arista
For the flies in each suborder, name the families and the
common names for these families as listed in the lecture
PowerPoint. - Correct Answer ✅-Nematocera:
Ceratopogonidae (midges), Simulidae (blackflies),
Psychodidae (sandflies), Culicidae (mosquitoes)
What are the life stages of lice? What are the eggs called? -
Correct Answer ✅Egg, 1st nymph, 2nd nymph, 3rd nymph,
adult; Eggs are called nits
What are the scientific names for the two suborders of lice we
have studied? What is the common term (related to how they
feed) for each suborder of lice? - Correct Answer
✅Suborder Mallophagan = biting lice; Suborder Anopluran =
sucking lice
Where are each of the flea life cycle stages found? - Correct
Answer ✅Egg: on host
-Larvae: environment
-Pupae: environment
-Adult: on host
Which stage of the flea life cycle has a cocoon? - Correct
Answer ✅Pupae
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