Entomology
blowfly lifecycle 2: instar I
- 24 hours later the eggs hatch and larva emerges - black mouth hooks, one spiracle slits near anus size: 5 mm - color: white - time in each stage: 24-27 hours
blowfly lifecycle 4: instar III
- 24-48 hours later the maggots grow - black mouth hooks, covered by fat, three spiracle splits near anus - size: 17 mm - color: white - time in each stage: 130 hours (5 days)
blowfly lifecycle 3: instar II
- 24-48 hours later the maggots grow - black mouth hooks, two spiracle slits near anus, actively feeding - size: 10 mm - color: white - time in each stage: 22-24 hours
blowfly lifecycle 5: pupa
- 8-9 days since the eggs were laid the maggots crawl to a dry place and form pupa easings - immobile, does not feed, dark brown - size: 9 mm - color: light brown - time in each stage: several weeks
blowfly lifecycle 6: adult blowfly
- fly appearance, but smaller with crumpled wings - size: varies - color: black or green
blowfly lifecycle 1: eggs
- within 1-24 hours adult flies lay eggs on the body - found in moist, warm areas (mouth, eyes, ears, anus) - size: 2 mm - color: white - time in each stage: 1-23 hours
a stage in the blowfly's lifecycle that is characterized by immobility and dormancy
pupa
approximate temperature of a maggot mass
24-45 degress celcius
a stage in the blowfly lifecycle that is characterized by active feeding and 3 spiral slits in the anus of the maggots
instar II
a process in which maggots crawl away from the body
maggot trail
favorable conditions for a blowfly to lay ehhs
moist
entomology
study of insects
true or false blowflies do not lay eggs at night
true
true or false insects can provide valuable clues for solving crimes
true
true or false larvae use mouth hooks to help ingest food and move?
true
what is the sequence of the developmental stages for blowflies
egg, larva, pupa
true or false PMI is an estimate of the interval of time between death and when the autopsy begins
false
a stage in decomposition process in which blowflies first arrive to lay eggs
fresh
what is the sequence of the decomposition stages
fresh, bloat, active decay, advanced decay, dry remains
an opening in the body such as a nostril or anus
orifice
what is another term for egg laying?
oviposition
the time between death and the discovery of a body is known as the ___________
postmortem interval
what is a characteristic of a newly hatched blowfly?
will have crumpled wings
how many days does it take for eggs to hatch into larvae?
1-2 days
forensic entomology can help investigators determine ____
TOD
entomologist
a scientist that studies insect activity on decomposing bodies
a research facility in Knoxville, TN, that investigates human decomposition under various conditions
body farm
a description of the wings of blowfly right after it hatches
crumpled
