ALBERTA BITING FLY (MOSQUITO)
CONTROL CERTIFICATE EXAMINATION|250
PRACTICE QUESTIONS WITH ANSWERS AND
RATIONALES
#SECTION A – MOSQUITO BIOLOGY AND IDENTIFICATION (Questions 1–60)
1. What is the primary habitat for mosquito larvae?
A) Dry soil
B) Standing water
C) Tree bark
D) Leaf litter
Correct Answer: B) Standing water
Rationale: Mosquito larvae are aquatic and require standing water for
development. They cannot survive in dry environments or on solid surfaces.
2. Which mosquito species is most commonly associated with the
transmission of West Nile virus in Alberta?
A) Aedes vexans
,B) Culex tarsalis
C) Anopheles quadrimaculatus
D) Culiseta melanura
Correct Answer: B) Culex tarsalis
Rationale: Culex tarsalis is the principal vector of West Nile virus in Alberta
due to its feeding habits and prevalence near human populations.
3. What stage of the mosquito life cycle is the pupa?
A) Egg
B) Larva
C) Adult
D) Transitional
Correct Answer: D) Transitional
Rationale: The pupa is a nonfeeding, transitional stage between larva and
adult. It allows metamorphosis without moving extensively.
4. What is the typical duration of the mosquito life cycle in Alberta during
summer?
A) 1–2 days
B) 7–14 days
,C) 30–45 days
D) 60–90 days
Correct Answer: B) 7–14 days
Rationale: Under optimal summer conditions, mosquitoes can complete a life
cycle from egg to adult in one to two weeks.
5. Which mosquito species is known for daytime biting?
A) Culex tarsalis
B) Aedes aegypti
C) Aedes vexans
D) Anopheles quadrimaculatus
Correct Answer: C) Aedes vexans
Rationale: Aedes vexans is a floodwater mosquito species known for
aggressive daytime biting behavior, particularly in vegetated areas.
6. How many insecticide groups contain mosquito larvicides registered for use
in Canada?
A) 3
B) 5
C) 7
, D) 10
Correct Answer: B) 5
Rationale: Mosquito larvicides registered for use in Canada fall within five
insecticide groups: microbials, insect growth regulators, organophosphates,
carbamates, and pyrethroids.
7. Which of the following is NOT a stage in the mosquito life cycle?
A) Egg
B) Larva
C) Nymph
D) Pupa
Correct Answer: C) Nymph
Rationale: Mosquitoes undergo complete metamorphosis with four stages:
egg, larva, pupa, and adult. Nymphs are found in insects with incomplete
metamorphosis, such as dragonflies.
8. What is the primary function of the mosquito pupal stage?
A) Feeding and growth
B) Reproduction
C) Transformation from larva to adult
CONTROL CERTIFICATE EXAMINATION|250
PRACTICE QUESTIONS WITH ANSWERS AND
RATIONALES
#SECTION A – MOSQUITO BIOLOGY AND IDENTIFICATION (Questions 1–60)
1. What is the primary habitat for mosquito larvae?
A) Dry soil
B) Standing water
C) Tree bark
D) Leaf litter
Correct Answer: B) Standing water
Rationale: Mosquito larvae are aquatic and require standing water for
development. They cannot survive in dry environments or on solid surfaces.
2. Which mosquito species is most commonly associated with the
transmission of West Nile virus in Alberta?
A) Aedes vexans
,B) Culex tarsalis
C) Anopheles quadrimaculatus
D) Culiseta melanura
Correct Answer: B) Culex tarsalis
Rationale: Culex tarsalis is the principal vector of West Nile virus in Alberta
due to its feeding habits and prevalence near human populations.
3. What stage of the mosquito life cycle is the pupa?
A) Egg
B) Larva
C) Adult
D) Transitional
Correct Answer: D) Transitional
Rationale: The pupa is a nonfeeding, transitional stage between larva and
adult. It allows metamorphosis without moving extensively.
4. What is the typical duration of the mosquito life cycle in Alberta during
summer?
A) 1–2 days
B) 7–14 days
,C) 30–45 days
D) 60–90 days
Correct Answer: B) 7–14 days
Rationale: Under optimal summer conditions, mosquitoes can complete a life
cycle from egg to adult in one to two weeks.
5. Which mosquito species is known for daytime biting?
A) Culex tarsalis
B) Aedes aegypti
C) Aedes vexans
D) Anopheles quadrimaculatus
Correct Answer: C) Aedes vexans
Rationale: Aedes vexans is a floodwater mosquito species known for
aggressive daytime biting behavior, particularly in vegetated areas.
6. How many insecticide groups contain mosquito larvicides registered for use
in Canada?
A) 3
B) 5
C) 7
, D) 10
Correct Answer: B) 5
Rationale: Mosquito larvicides registered for use in Canada fall within five
insecticide groups: microbials, insect growth regulators, organophosphates,
carbamates, and pyrethroids.
7. Which of the following is NOT a stage in the mosquito life cycle?
A) Egg
B) Larva
C) Nymph
D) Pupa
Correct Answer: C) Nymph
Rationale: Mosquitoes undergo complete metamorphosis with four stages:
egg, larva, pupa, and adult. Nymphs are found in insects with incomplete
metamorphosis, such as dragonflies.
8. What is the primary function of the mosquito pupal stage?
A) Feeding and growth
B) Reproduction
C) Transformation from larva to adult
