Alberta Forestry and Wildlife Biting Fly
Identification (2026 Edition)Comprehensive
Field Identification Practice Exam | High-
Difficulty Multiple-Choice Questions |
Verified Answers | Detailed Rationales in
Italics | Alberta Forestry, Wildlife
Management, Conservation, and Outdoor
Field Operations Preparation
Question 1
Which biting fly is recognized by its large size, loud buzzing
flight, and blade-like mouthparts capable of cutting skin?
A. Stable Fly
B. Deer Fly
C. Mosquito
D. Black Fly
Answer: B. Deer Fly
Rationale: Deer flies (family Tabanidae) possess scissor-like
mouthparts that slice the skin before feeding on pooled blood.
Their flight is loud and highly noticeable.
,Question 2
Black flies are most commonly associated with breeding in:
A. Stagnant marshes
B. Fast-flowing streams and rivers
C. Salt marshes
D. Forest leaf litter
Answer: B. Fast-flowing streams and rivers
Rationale: Black fly larvae require clean, oxygen-rich moving
water where they attach themselves to submerged rocks and
vegetation.
Question 3
Which Alberta biting fly is most active during calm evenings?
A. Horse Fly
B. Mosquito
C. Deer Fly
D. Black Fly
Answer: B. Mosquito
Rationale: Mosquitoes are crepuscular, with peak activity
occurring around dusk and dawn when temperatures are
moderate and humidity is higher.
Question 4
,Horse flies primarily locate hosts using:
A. Echolocation
B. Carbon dioxide and visual movement
C. Magnetic fields
D. Plant odors only
Answer: B. Carbon dioxide and visual movement
Rationale: Horse flies rely heavily on visual cues, movement,
body heat, and carbon dioxide to locate mammals.
Question 5
Which feature best distinguishes black flies from mosquitoes?
A. Long legs
B. Hump-backed thorax
C. Feathered antennae
D. Transparent wings with scales
Answer: B. Hump-backed thorax
Rationale: Adult black flies have a characteristic hump-backed
appearance that distinguishes them from slender-bodied
mosquitoes.
Question 6
Only which stage of the mosquito life cycle feeds on blood?
, A. Larva
B. Pupa
C. Adult female
D. Adult male
Answer: C. Adult female
Rationale: Female mosquitoes require blood proteins for egg
development, while males feed only on nectar and plant sugars.
Question 7
Which Alberta habitat is most likely to produce large
populations of mosquitoes?
A. Dry grassland
B. Standing water after snowmelt
C. Rocky mountain slopes
D. Conifer bark
Answer: B. Standing water after snowmelt
Rationale: Temporary pools formed after snowmelt provide
ideal mosquito breeding sites throughout Alberta.
Question 8
The painful bite of horse flies results primarily from:
A. Venom injection
B. Saw-like cutting mouthparts
Identification (2026 Edition)Comprehensive
Field Identification Practice Exam | High-
Difficulty Multiple-Choice Questions |
Verified Answers | Detailed Rationales in
Italics | Alberta Forestry, Wildlife
Management, Conservation, and Outdoor
Field Operations Preparation
Question 1
Which biting fly is recognized by its large size, loud buzzing
flight, and blade-like mouthparts capable of cutting skin?
A. Stable Fly
B. Deer Fly
C. Mosquito
D. Black Fly
Answer: B. Deer Fly
Rationale: Deer flies (family Tabanidae) possess scissor-like
mouthparts that slice the skin before feeding on pooled blood.
Their flight is loud and highly noticeable.
,Question 2
Black flies are most commonly associated with breeding in:
A. Stagnant marshes
B. Fast-flowing streams and rivers
C. Salt marshes
D. Forest leaf litter
Answer: B. Fast-flowing streams and rivers
Rationale: Black fly larvae require clean, oxygen-rich moving
water where they attach themselves to submerged rocks and
vegetation.
Question 3
Which Alberta biting fly is most active during calm evenings?
A. Horse Fly
B. Mosquito
C. Deer Fly
D. Black Fly
Answer: B. Mosquito
Rationale: Mosquitoes are crepuscular, with peak activity
occurring around dusk and dawn when temperatures are
moderate and humidity is higher.
Question 4
,Horse flies primarily locate hosts using:
A. Echolocation
B. Carbon dioxide and visual movement
C. Magnetic fields
D. Plant odors only
Answer: B. Carbon dioxide and visual movement
Rationale: Horse flies rely heavily on visual cues, movement,
body heat, and carbon dioxide to locate mammals.
Question 5
Which feature best distinguishes black flies from mosquitoes?
A. Long legs
B. Hump-backed thorax
C. Feathered antennae
D. Transparent wings with scales
Answer: B. Hump-backed thorax
Rationale: Adult black flies have a characteristic hump-backed
appearance that distinguishes them from slender-bodied
mosquitoes.
Question 6
Only which stage of the mosquito life cycle feeds on blood?
, A. Larva
B. Pupa
C. Adult female
D. Adult male
Answer: C. Adult female
Rationale: Female mosquitoes require blood proteins for egg
development, while males feed only on nectar and plant sugars.
Question 7
Which Alberta habitat is most likely to produce large
populations of mosquitoes?
A. Dry grassland
B. Standing water after snowmelt
C. Rocky mountain slopes
D. Conifer bark
Answer: B. Standing water after snowmelt
Rationale: Temporary pools formed after snowmelt provide
ideal mosquito breeding sites throughout Alberta.
Question 8
The painful bite of horse flies results primarily from:
A. Venom injection
B. Saw-like cutting mouthparts
