Forensics: Entomology questions with verified
answers
1. Flies (Diptera)
2. Beetles (Coleoptera) Ans✓✓✓ Most insects used in investigations
are in two major orders
1st instar Ans✓✓✓ 5 mm long after 1.8 days
1st larval stage Ans✓✓✓ Adult flies lay eggs on the carcass especially
at wound areas or around the openings in the body such as the nose,
eyes, ears, anus, etc.
2nd instar Ans✓✓✓ 10 mm long after 2.5 days
2nd larval stage Ans✓✓✓ Eggs hatch into larva (maggots) in 12-24
hours
3rd instar Ans✓✓✓ 14-16 mm long after 4-5 days
3rd larval stage Ans✓✓✓ Larvae continue to grow and molt (shed their
exoskeletons) as they pass through the various instar stages
, 4th larval stage Ans✓✓✓ The larvae (17 mm) develop into pupa after
burrowing in surrounding soil
5th larval stage Ans✓✓✓ Adult flies emerge from pupa cases after 6-8
days
Adipocere Ans✓✓✓ Also called "grave wax," insoluble fatty acids left
as residue from preexisting fats from decomposing cadavers. It is
formed by the slow hydrolysis of fats in wet ground and can occur in
both embalmed and untreated bodies.
adult Ans✓✓✓ last stage of a fly's life cycle
Algor mortis Ans✓✓✓ The cooling of the body temperature after
death.
Ambient Ans✓✓✓ Concerning the surrounding area or environment.
Arthropods Ans✓✓✓ Animals characterized by joined legs, a
segmented body, and a hard, nonliving exo-(outer) skeleton. The
exoskeleton does not keep up with the growth of the insect and so
must be shed periodically. This process is called molting. The stages
between molts are termed instars.
Autolysis Ans✓✓✓ A process by which a biological cell self-destructs.
answers
1. Flies (Diptera)
2. Beetles (Coleoptera) Ans✓✓✓ Most insects used in investigations
are in two major orders
1st instar Ans✓✓✓ 5 mm long after 1.8 days
1st larval stage Ans✓✓✓ Adult flies lay eggs on the carcass especially
at wound areas or around the openings in the body such as the nose,
eyes, ears, anus, etc.
2nd instar Ans✓✓✓ 10 mm long after 2.5 days
2nd larval stage Ans✓✓✓ Eggs hatch into larva (maggots) in 12-24
hours
3rd instar Ans✓✓✓ 14-16 mm long after 4-5 days
3rd larval stage Ans✓✓✓ Larvae continue to grow and molt (shed their
exoskeletons) as they pass through the various instar stages
, 4th larval stage Ans✓✓✓ The larvae (17 mm) develop into pupa after
burrowing in surrounding soil
5th larval stage Ans✓✓✓ Adult flies emerge from pupa cases after 6-8
days
Adipocere Ans✓✓✓ Also called "grave wax," insoluble fatty acids left
as residue from preexisting fats from decomposing cadavers. It is
formed by the slow hydrolysis of fats in wet ground and can occur in
both embalmed and untreated bodies.
adult Ans✓✓✓ last stage of a fly's life cycle
Algor mortis Ans✓✓✓ The cooling of the body temperature after
death.
Ambient Ans✓✓✓ Concerning the surrounding area or environment.
Arthropods Ans✓✓✓ Animals characterized by joined legs, a
segmented body, and a hard, nonliving exo-(outer) skeleton. The
exoskeleton does not keep up with the growth of the insect and so
must be shed periodically. This process is called molting. The stages
between molts are termed instars.
Autolysis Ans✓✓✓ A process by which a biological cell self-destructs.
