CSI - Forensic Entomology questions with verified
answers
3 Stages of insect succession Ans✓✓✓ Stages:
Stage 1: Necrophagous species
- Calliphoridae, Sacrophagidae, Silphidae
Stage 2: Predators
- Histeridae, Staphylinidae
Stage 3: Predators/Accidentals
- Hymenoptera
- Spiders, Springtails, Mites, Round worms
Adult Flies Ans✓✓✓ Can be collected over the body using a net
Flies can be placed in a vial without food or air
Applications of Forensic Entomology Ans✓✓✓ Time since death (PMI)
Cause of death
Neglect
Drug consumption
Regions of trauma
Location of death
Beetles Ans✓✓✓ Quite often are found under the body •
, Preserve them in alcohol as stated earlier
Collect various stages of them (keep separate from maggots)
Blowflies Ans✓✓✓ Blowflies are attracted to a corpse very quickly
after death
They lay eggs in wounds and orifices in the body
The development of these eggs follows a set, predictable cycle
Can detect odour from dead body within minutes of death
The odour can be detected from a mile or more away
Can be human or animal remains
Females lay the eggs
Climate change possible cause of new species showing up in areas not
typically found
Canada Ans✓✓✓ Given our four season climate, typically not used in
winter unless mild, as there are no insects about
Knowing the temperature at the death site is important as weather
records may be for a weather station several kilometres away
Research needs to be ongoing into habitats, seasons and geographic
areas (insect succession can vary from region to region)
Databases need to be developed, if not in existence, and maintained
Canada's Body Farm Ans✓✓✓ Research facility in Quebec (2020)
answers
3 Stages of insect succession Ans✓✓✓ Stages:
Stage 1: Necrophagous species
- Calliphoridae, Sacrophagidae, Silphidae
Stage 2: Predators
- Histeridae, Staphylinidae
Stage 3: Predators/Accidentals
- Hymenoptera
- Spiders, Springtails, Mites, Round worms
Adult Flies Ans✓✓✓ Can be collected over the body using a net
Flies can be placed in a vial without food or air
Applications of Forensic Entomology Ans✓✓✓ Time since death (PMI)
Cause of death
Neglect
Drug consumption
Regions of trauma
Location of death
Beetles Ans✓✓✓ Quite often are found under the body •
, Preserve them in alcohol as stated earlier
Collect various stages of them (keep separate from maggots)
Blowflies Ans✓✓✓ Blowflies are attracted to a corpse very quickly
after death
They lay eggs in wounds and orifices in the body
The development of these eggs follows a set, predictable cycle
Can detect odour from dead body within minutes of death
The odour can be detected from a mile or more away
Can be human or animal remains
Females lay the eggs
Climate change possible cause of new species showing up in areas not
typically found
Canada Ans✓✓✓ Given our four season climate, typically not used in
winter unless mild, as there are no insects about
Knowing the temperature at the death site is important as weather
records may be for a weather station several kilometres away
Research needs to be ongoing into habitats, seasons and geographic
areas (insect succession can vary from region to region)
Databases need to be developed, if not in existence, and maintained
Canada's Body Farm Ans✓✓✓ Research facility in Quebec (2020)
