Entomology - study of insects Forensic Investigations ASISTM, 2006.

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Presentation transcript:

Entomology - study of insects Forensic Investigations ASISTM, 2006

Insects Insects are a class of Arthropods that have three segments to their body, one pair of antennae, three pairs of legs, compound eyes and breathe air via small holes or spiracles along the side of their body.

Insects Most arthropods are insects BUT there are also bugs that are NOT insects such as spiders (Arachnida), crayfish & woodlice (Crustacea) and millipedes & centipedes (Diplopoda & Chilopoda - sometimes collectively known as Myriapoda). It is easy to be confused!

Insects Classification of the arthropods can also be slightly different in various information sources. To make it even more confusing, as more research is done, scientists may revise or even change what group various organisms belong in.

Insects As you watch the slide presentation, think about the following: Are there ‘good or bad’ insects? What role do insects play in science? Are insects important in forensic science?

Caterpillar DUIT image database

Grasshopper Russ Ottens, University of Georgia, Schistocerca americana - species name

Bluebodied blow fly Calliphora dubia Courtesy Ian Dadour, UWA

Flesh fly Courtesy Ian Dadour, UWA Sarcophagidae - Family

House fly Courtesy Ian Dadour, UWA Musca domestica

Hide beetle Trogidae Courtesy Ian Dadour, UWA

Hister beetle Courtesy Ian Dadour, UWA Hister spp

Rove beetle Nudobius luridipennis Gerald J. Lenhard,

Smooth & Hairy maggots Courtesy Ian Dadour, UWA

Carrion beetle Oiceoptoma noveboracensis David Cappaert,

Honey bee Apis mellifera Scott Bauer, USDA Agricultural Research Service,

Oriental cockroach Blatta orientalis Clemson University USDA Cooperative Extension Slide Series,

Clothes moth Tineola bisselliella Clemson University USDA Cooperative Extension Slide Series,

Striped earwig Labidura riparia Joseph Berger,

Mosquito Jim Occi, BugPics, Culicidae

Green blow fly Phaenicia sericata Joseph Berger,

Field cricket Gryllus pennsylvanicus Joseph Berger,

Katydid Jim Occi, BugPics, Tettigoniidae

Black-winged damselfly Calopteryx maculata David Cappaert,

Stick insect Anisomorpha spp. Herbert A. "Joe" Pase III, Texas Forest Service,

Lacewing Chrysopa oculata Clemson University - USDA Cooperative Extension Slide Series,

Horned palassus Odontotaenius disjunctus Herbert A. "Joe" Pase III, Texas Forest Service,

Rhinocerus beetle Sinodendron cylindricum Gyorgy Csoka, Hungary Forest Research Institute,

Monarch butterfly - caterpillar Danaus plexippus David Cappaert,

Monarch butterfly - cocoon Herbert A. "Joe" Pase III, Texas Forest Service, Danaus plexippus

Monarch butterfly Danaus plexippus Charles T. Bryson, USDA Agricultural Research Service,

Firefly Photinus spp David Cappaert,

Transverse lady beetle eggs Coccinella transversoguttata Bradley Higbee, Paramount Farming,

Silverfish Lepisma saccharina Clemson University - USDA Cooperative Extension Slide Series,

Ladybird beetle Whitney Cranshaw, Colorado State University, Coccinella septempunctata

Termite Coptotermes formosanus Scott Bauer, USDA Agricultural Research Service,

Green stink bug Acrosternum hilare Susan Ellis,

Horse fly Hematabanus carolinensis Sturgis McKeever, Georgia Southern University, Biology Slide Collection,

Bumblebee Bombus impatiens David Cappaert,

Chinese mantid Tenodera aridifolia sinensis Susan Ellis,

Red ant Formica pallidefulva Susan Ellis,

Giant ichneumon wasp Rhyssa persuasoria Boris Hrasovec, University of Zagreb,

Other bugs that are NOT insects Diplopoda & Chilopoda (millipedes & centipedes)

Millipede DUIT image database

Centipede Tom Coleman, University of Kentucky,

Centipede DUIT image database

Other bugs that are NOT insects Arachnida - Araneae (spiders)

Jumping spider Platycryptus undatus David Cappaert,

Black widow spider (closely related to the red-back spider) Latrodectus mactans Ronald F. Billings, Texas Forest Service,

Tarantula Ronald F. Billings, Texas Forest Service,

Other bugs that are NOT insects Arachnida - Scorpiones (scorpions)

Southern devil scorpion James O. Howell, The University of Georgia,

Archanida - Acari (mites & ticks) Other bugs that are NOT insects

Yellow mite Lorryia formosa Eric Erbe, USDA Agricultural Research Service,

Tick Ixodes scapularis Scott Bauer, USDA Agricultural Research Service,

Crustacea - Oniscidea (crustaceans that live on land) Other bugs that are NOT insects

Woodlice DUIT image database Oniscidea

Pill bug Armadillidium vulgare Joseph Berger,

References Slides sourced are copyright free and provided by The Sourcewww.insectimages.org for Entomology Photos A joint project of the University of Georgia and the USDA Forest Service. Project Coordinators: Keith Douce, David Moorhead & Charles Bargeron.Keith DouceDavid MoorheadCharles Bargeron Some slides are courtesy of Associate Professor Ian Dadour, The Centre for Forensic Science, The University of Western Australia The insect banner has been created from a series of drawings by Paul Ricketts, DUIT Multimedia, The University of Western Australia.