forensic entomology

Question 1

order of classification of things

Answer 1

species
genus
family
order
class
phylum
kingdom

Question 2

order of flies

Answer 2

diptera

Question 3

order of beetles

Answer 3

coleoptera

Question 4

flies and beetles follow a life cycle that allow scientists to estimate how long a body has been dead

Answer 4

true

Question 5

insects are generally the first to discover a corpse

Answer 5

true

Question 6

insects arrive at a decomposing corpse in a
somewhat predictable sequence – “ecological
succession”

Answer 6

true

Question 7

study of insects

Answer 7

entomology

Question 8

involves the use of insects and other arthropods to aid in legal investigations

Answer 8

forensic entomology

Question 9

insect damage to structures

Answer 9

urban entomology

Question 10

infestation of foodstuffs

Answer 10

stored products entomology

Question 11

insects that inhabit human remains

Answer 11

medico-legal entomology or medico-criminal entomology

Question 12

problem involving cockroaches and other pests

Answer 12

human environments (under urban entomology)

Question 13

lawsuits on damage, extermination of real estate value

Answer 13

termites (under urban entomology)

Question 14

insect nuisances related to agricultural endeavors, flied from livestock, insects in cattle feedlots, poultry houses and pig farms

Answer 14

rural entomology (under urban entomology)

Question 15

neglect claims, mortuary neglects (maggot infested corpse)

Answer 15

patients in hospital with myiasis (under urban entomology)

Question 16

disputes over arthropods and arthropod parts in food and other products

insect debris and cereals
caterpillars in cans of vegetables
fly maggots in fast food
“planted” with intent or to defraud

Answer 16

stored products entomology

Question 17

concerns the use of arthropods in solving crimes most often crimes of violence

impartial biological science

Answer 17

medico-criminal entomology

Question 18

homicide or assault using insects
cases of unexplained deaths (anaphylaxis from bee stings)
causation of traffic evidence

Answer 18

medico-criminal entomology

Question 19

estimation of time of death

post mortem interval

Answer 19

medico-criminal entomology

Question 20

determination of the postmortem interval

the body may have been moved after death

the body may have been disturbed after death

the presence and position of wounds

Answer 20

how insect evidence helps crimes

Question 21

insects can be used to place a suspect at the crime
scene

detection of abuse/neglect of children or elderly
people

detection of the presence of drugs in corpse.

Answer 21

how insect evidence helps crimes

Question 22

civil cases also sometimes use insect evidence

dna determination

gunshot residue from blowfly larvae

Answer 22

how insect evidence helps crimes

Question 23

fly species can vary geographically according to

climate, season, and habitat.

Answer 23

true

Question 24

phormiaregina prefers

Answer 24

shade

Question 25

lucilia illustris prefers

Answer 25

sunlit areas

Question 26

insects arrive at a decomposing body in a particular order (ecological succession) and then complete their life cycle based on the surrounding temperature.

Answer 26

true

Question 27

by collecting and studying the types of insects found on a body and their metamorphic stage, a forensic entomologist can estimate the time of death or postmortem interval.

Answer 27

true

Question 28

application of temperature-dependent development of insects usually flies

Answer 28

principal 1 in estimating pmi

Question 29

generally predictable succession of arthropods often facilitates decomposition of organic matter

Answer 29

principal 2 in estimating pmi

Question 30

``` The accuracy of PMI depends on the available knowledge base, which in most cases is dependent on a number of facts and assumptions concerning insect biology, behavior and ecology. ``` ``` After 24–48H following death, the most accurate measure of time since death is determined by the insect material developing on the corpse. ```

Answer 30

true

Question 31

attracted to dead bodies and often arrive within minutes of the death of an animal. they have a complete life cycle that consists of egg, larva, pupa, and adult stages.

Answer 31

blow flies

Question 32

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.

Answer 32

first stage of blow fly metamorphosis

Question 33

eggs hatch into larva (maggots) in | 12-24 hours.

Answer 33

second stage of blow fly metamorphosis

Question 34

larvae continue to grow and molt (shed their exoskeletons) as they pass through the various instar stages.

Answer 34

third stage of blow fly metamorphosis

Question 35

1st Instar

Answer 35

5 mm long after 1.8 days

Question 36

2nd Instar

Answer 36

10 mm long after 2.5 days

Question 37

3rd Instar –

Answer 37

4-16 mm long after 4-5 days

Question 38

``` the larvae (17 mm) develop into pupa after burrowing in surrounding soil ```

Answer 38

fourth stage of blow fly metamorphosis

Question 39

adult flies emerge from pupa cases after | 6-8 days.

Answer 39

fifth stage of blow fly metamorphosis

Question 40

tt takes approximately 14-16 days from egg to adult depending on the temperatures and humidity levels at the location of the body.

Answer 40

true

Question 41

insects are cold blooded

Answer 41

true

Question 42

rate of development is more or less dependent on ambient temperature

Answer 42

true

Question 43

each species has a threshold temperature below which no development occurs

Answer 43

true

Question 44

once the temperature rise above the threshold, a certain amount of time is required for the insects to pass through each life stage

Answer 44

true

Question 45

the heat is accumulated as thermal units | it can be calibrated and described as degree days or degree hours

Answer 45

true

Question 46

the higher the temperature (within limits), the | faster the growth.

Answer 46

true

Question 47

most laboratory rearings have been done at a constant temperature

Answer 47

(true) problems of principal 1 (temperature-dependent development of insects)

Question 48

research is needed to establish correlations between these data, typical diurnal/nocturnal fluctuations and average daily measurement from weather stations.

Answer 48

(true) problems of principal 1 (temperature-dependent development of insects)

Question 49

retrospective weather records from a nearby weather recording station are those most often used in medicocriminal evalutation

Answer 49

(true) problems of principal 1 (temperature-dependent development of insects)

Question 50

studies size and prevalence of maggots and other larva useful for less than a month old corpse

Answer 50

larval development

Question 51

best use for corpse older than a month

Answer 51

species succession method

Question 52

once the corpse is too dry, flies and maggots clear out

Answer 52

true

Question 53

they work on dry flesh and ligaments

Answer 53

hide and carrion beetles

Question 54

they consume remaining hair and only leave skeleton

Answer 54

mites and moth larvae