Download Insects

The Insects
Class Insecta
Mr. Hooper
March 2015
Phylum Arthropoda
Arthropod is from the Greek
words “Arthros” meaning joint
and “podos” meaning leg or foot.
The arthropods are divided into
five major groups:
Cactus Longhorn Beetle
(Moneilema gigas)
http://fireflyforest.net/firefly/2006/11/23/cactus-longhorn-beetle/
Class Crustacea
Class Arachnida
Class Chilopoda
Class Diplopoda
Class Insecta
Class Insecta
http://www.britannica.com/bps/media-view/139386/1/0/0
What is an Insect?
Insects are arthropods with three
body sections, six legs, one pair of
antennae, and usually one or two
pairs of wings.
Insect Body Plan
http://www.umaa.org/images/mosquito.jpg
The three body sections of an insect are the head, thorax, and abdomen.
Insect Body Sections -Head
Most of the insect’s
sense organs, such as
the two, large
compound eyes and
antennae are located
on the head.
A compound eye is an
eye with many
lenses.
http://www.umaa.org/images/mosquito.jpg
Six-spotted Tiger Beetle
Most insects also have
small, simple eyes
than can distinguish
light from dark.
Insect Body Sections -Thorax
The insect’s
midsection or thorax
is the section to which
the wings and legs are
attached.
Flight allows insects
the ability to travel
long distances to find
food, mates, and
habitat.
http://ugly-animals.blogspot.com/2011/07/damselfly.html
Blue Damselfly
Insect Body Sections -Abdomen
http://www.blisspest.com/pest-library/profile/ants
The insect’s most posterior body section is the abdomen.
Inside the abdomen are many of the insect’s internal organs.
Small holes called spiracles on the outside of the abdomen lead to
a system of tubes inside the insect.
Obtaining Food
Class Insecta
Complete Metamorphosis
Fireflies undergo
complete
metamorphosis.
Complete metamorphosis in the butterfly
Brooker Biology textbook, Copyright McGraw-Hill
companies
http://www.firefly.org/firefly-pictures.html#
Complete Metamorphosis
Flies and fleas undergo complete
metamorphosis.
http://www.petdental.com/dog-care/dog-diseases/flea-life-cycle.html
http://science.howstuffworks.com/environmental/life/zoology/insects-arachnids/housefly4.htm
Complete Metamorphosis in Beetles
Beetles including ladybird
beetles and Japanese
beetles go through
the four stages of complete
metamorphosis.
http://www.megaminifarm.com/wp-content/uploads/2013/06/20185472_s.jpg
http://www2.ca.uky.edu/entomology/entfacts/images/jblifecycle.jpg
Class Insecta
Gradual Metamorphosis
http://ptygmatics.wordpress.com/page/2/
Grasshoppers, termites, cockroaches,
dragonflies, praying mantises, thrips
and cicadas go through
gradual metamorphosis.
http://insects.about.com/od/growthmetamorphosi1/ss/typesmetamorph_3.htm
Gradual Metamorphosis
http://ptygmatics.wordpress.com/page/2/
Earwigs undergo gradual metamorphosis.
https://commons.wikimedia.org/wiki/File:Earwig_life_cycle_2.svg
Insects as Beneficial Predators
Predator
Adult green lacewing
Any organism that exists
by preying upon other
organisms.
Insects that are
beneficial predators
include lacewing adults
and larvae, praying
mantises, and ladybugs.
Biological Control
Lacewing larva are voracious predators also
known as “aphid lions.”
A natural predator
released into an area to
combat a pest insect.
Insects as Pollinators
Pollinator
An animal that
carries pollen from
one plant to
another of the
same species,
enabling plants to
reproduce.
http://mary-goingnative.blogspot.com/2012/03/pollinators.html
Insect pollinators
include bees,
wasps, beetles,
butterflies, and
flies.
Insects as Decomposers
Decomposer
An organism that
breaks down wastes
and dead organisms.
Insect decomposers
include beetles, flies,
and termites.
http://commandpestcontrol.com/termite-identification/#!prettyPhoto/1/
Insects as Food for Humans
Insects are collected and eaten by people in many parts of the world.
Grasshoppers, ants, crickets, and cicadas are types of insects eaten by
humans.
Insects as Food for Humans
Crick-ettes ®: Real edible crickets! Original Cricket Snax in Salt n' Vinegar,
Bacon & Cheddar Cheese, and Sour Cream & Onion seasoning. Eight
boxes of each flavor. 24 - 1.4g boxes.
Medically Important
Insects
http://emad-donnelly.org/mosquitointro.htm
http://extension.missouri.edu/p/g7380
http://en.wikipedia.org/wiki/Bed_bug
Insects as Structural Pests
Termites and
carpenter ants
damage homes and
structures by eating
and weakening wood.
Cockroaches crawl through dirty
areas and then walk around our
homes tracking in lots of bacteria and
germs. They can contaminate food by
shedding their skins. Their cast off
skin and waste byproducts are
allergens that can trigger allergic
reactions, asthma and other illnesses,
especially in children.
Insects as Crop Pests
Brown
Aphid
Marmorated
with nymphs
Stink Bug
http://jenny.tfrec.wsu.edu/opm/displaySpecies.php?pn=-25
Integrated Pest Management
Integrated Pest Management (IPM) is a strategy of managing pest insects with
the least effect to people, pets, and the environment. IPM strives to control pests
through multiple strategies. Control measures include habitat modification,
physical methods, biological controls, and responsible and safe use of pesticides.
Integrated Pest Management
http://sccoastalpesticides.org/images/ipm.png
http://www.versicolor.ca/lawns/img/shelves/NEWLABEL/insectigone450.gif
Advantages of IPM include a decrease in the use of pesticides, increases in beneficial
insects, and a decrease in the prevalence of pesticide resistant pest species.
Works Cited
Ambylopygi (whip spider). http://2.bp.blogspot.com/-vtwnAx3jQcM/Tdp3gc9pPvI/AAAAAAAAN8/VKdujp4X6Lc/s640/whip+spider.jpg
American carrion beetles. http://naturalpatriot.org/2008/06/05/in-praise-of-dung-beetles/.
American carrion beetle-single. http://www.hiltonpond.org/thisweek040508.html.
Aphid. http://en.wikipedia.org/wiki/File:Acyrthosiphon_pisum_(pea_aphid)-PLoS.jpg.
Beetle eating leaf. http://us.123rf.com/400wm/400/400/anderm/anderm0806/anderm080600017/3214972-green-bugeating-leaf.jpg.
Body plan diagram. http://entnemdept.ufl.edu/fasulo/vector/graphics/bodyparts.jpg.
Bowl of grasshoppers. http://z11.invisionfree.com/Basta_de_opresion/index.php?showtopic=5773&st=15.
Brown marmoted stink bug. http://pubs.ext.vt.edu/2902/2902-1100/2902-1100.html.
Cicadas on a stick. http://www.time.com/time/nation/article/0,8599,2078830,00.html.
Cockroach. http://www.massappealnews.com/2010/09/07/cockroaches-used-as-medicine/.
Crick-ettes. http://store.offbeattreats.com/merchant2/graphics/00000001/crickettes.jpg
Feeding mosquito. http://images.gizmag.com/hero/nanoparticle-mosquito-dsrna-gene-silencing-chitin.jpeg.
Green lacewing adult. http://nathistoc.bio.uci.edu/neuropt/Chrysopa.htm.
Horsefly. http://img.fotocommunity.com/Aufnahmetechniken/Natur-Makros/Pferdebremse-a18767598.jpg.
IPM Cycle. http://sccoastalpesticides.org/images/ipm-integrated-pest-management.png.
Ladybird and aphids.
http://www.mattcolephotography.co.uk/Galleries/insects/Bugs%20&%20Beetles/Seven%20Spot%20Ladybird%20eating%
20Aphids%203.jpg
Plague soldier beetle. http://myrmecos.net/2012/01/16/australia-buried-under-a-plague-of-soldier-beetles/.
Praying mantis. http://ryecityschools.midland.schoolfusion.us/modules/cms/pages.phtml?sessionid=&pageid=157706.
Works Cited
Red Admiral. http://riverbankscribe.files.wordpress.com/2012/01/butterfly_red-admiral-by-jim-asher.jpg.
Scarab Beetle. http://kirbyandfriends.files.wordpress.com/2011/03/scarab-beetle-cetonia-aurata.jpg.
Six –spotted tiger beetle.
http://www.photomacrography.net/forum/viewtopic.php?t=9848&sid=adb89762a9683994600c1e459ed11cd7.
Termite damage. http://jwlumber.com/page_display.php?id=15.
Yellow jacket close-up. http://farm4.staticflickr.com/3448/3860366267_a27776da55_z.jpg?zz=1.
Yellow jacket dorsal.
http://bugguide.net/images/cache/3K9RLQWRIQTQU0L0M0CQ6000N0S0G0NRHQFR7QK0W0Q0IQ1R50CQ80YQHQUR3K
YQHQWR3KOQP0K0QQL0N0OR60YR.jpg.
Yellow jacket profile. http://evanspestmanagement.com/wp-content/uploads/2009/05/yellowjacket.jpg.