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29 Cards in this Set
- Front
- Back
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types of entomology ____________ • Pestinfestations inbuildingsorgardens,parks• Basisofitigation betweenprivateparty,andserviceproviderssuchaslandlordsorexterminators |
Urban Forensic Entomology |
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types of entomology _____________ • Infestation orcontamination ofcommerciallydistributedfoodsbyinsects.e.g.grains,cockroachesinyourpackofchips! |
Stored-product forensic entomology |
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types of entomology
______________ - poaching - mysterious wildlife deaths |
Wildlife forensics |
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types of entomology __________ animal or human abuse insect larvae feeding on necrotic or living tissue |
Myiasis |
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human _________ sometimes can be recovered from the _________of the insect |
blood, digestive tract |
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other uses of insects medical- utilitarian T_____ B_____ MDT____ |
medico-legal/medico criminal entomology taxidermy bonecleaning maggot debriment therapy |
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important book on forensic entomology published in _____ |
'entomology and death' 1990 |
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insects existed for ______ highly diverse |
250 million years |
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a ecological concept present in death cycle |
ecological succession |
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developmental ____ depends on _______ at the _________ level |
developmental time depends on temperature at the micro-habitat level |
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ecological succession _______community undergoes more of less a ____and ______changes following ______ or initial ________of a new habitat |
The ecological community undergoes more or less an orderly and predictable change following a disturbance or initial colonization of a new habitat. |
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ecological succession of corpse a corpse will be invaded by a series of different ___________ over time each species or groups changes the _________ through its activities which makes it _______ to new waves of _______ |
-species / insect groups -micro-environment -organisms |
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forensics insect first insects to arrive at body ____ flies which are ____ &____ |
pioneer flies - blow flies house flies |
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stages of decomposition 1. no decay - 0-3 days ______ _____flies move in within ___hrs eggs hatched |
intial decay -pioneer flies -24 hrs |
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2. _________ 4-10 days body- __________________ _____flies, _____flies, ______, _____ - ______feasts on maggots -joined by _____wasps |
putrefaction -bloating, marbling, gas produced, smell blowflies, fleshflies, beetles, mites, predators feast on maggots parasitoid wasps |
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3. ______ _______ 10-20 days _____walls broken _____bury into ground to become ___-- ______maggots, beetles and _____ wasps common |
black putrefaction abdominal walls maggots - pupa predatory , parisitoid |
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4.b_______ f___________ remaining ____ eroded by _______flies body now suitable for the _____ parts of ______ |
butyric fermentation flesh, cheese flies chewing mouth parts, beetles |
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5. d__ d_____ 50-365 days ______, _______,______ |
dry decay, moths, bacteria, mites |
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rate of decomp depends on Access by _____, _______ ____body is on, c______ body ___&_____ weather - Te____- ra_______, Hu____ prior _______ body condition - T______ burial |
insects, carnivores surface clothes size & weight temp, rainfall, humidity embalming trauma, burial |
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Collection of samples (4) |
dead insects live insects soil samples temperature data |
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dead insects ____jar - vial of _______ for preservative larve - representative sample of __-__ larvae if more than 1 area of colonization than each site treated _________- properly labelled l______, d_____&h____, ____ number, _____ on body, name of _______ |
killing jar 75% ethyl alcohol 50-60 seperately location, date and hour, case number , location on body, name of collector |
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Live insects put in cups with ________lid along with moist ________ and food ____ ________poked on lid - place cups in ______ with ______soil or V________ in bottom to _______ liquids |
tight-fitting paper towelette, food substrate tiny air holes larger containers, 1/2 inch soil vermiculite, absorb liquids |
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soil samples collect____ litter and d____ - collect s_______ first __-___inches of _____ of ___-___ inch square under _____,_____ &_______ |
leaf litter and debris separately first 2-3 inches of top soil 4-6 inch square head, torso, extremities |
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temperature data _____air temp _____mass temp ______surface temp _______temp between _____& _______- temp of _____directly underneath _____ ______data |
ambient air temp maggot mass temp ground surface temp interface temp between body and ground temp of soil directly underneath body weather data |
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estimating the time when infestation of insect begins, not time of death |
postmortem index (PMI) |
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PMI is restricted to the ____ that the body has been exposed to the environment which allows ________ |
time insect activity |
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steps for PMI 1. determine ____ at _______ 2. rear maggots collected from scene and record ______ identify fly ____ from _____ 3.using knowledge of ______ count back from ____ specimens found at scene |
temp, scene instars species, adult characteristics instars, collected dead specimens |
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current modern techniques Scan____ e_____ m______- for eggs and maggots P_____ P_______ s_______ for eggs |
scanning election microscopy, potassium permangenate staining |
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problems _____ insects and fauna of ______ |
unknown insects and fauna of region
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