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Med&Vet Ent
Exam I Material
24
Biology
Undergraduate 4
02/16/2011

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Term
Classification
Definition
Kingdom
Phylum
Class
Order
Family
Genus
Species
Term
Subphylum Chelicerata
Definition
spiders, scorpions, mites, whipscorpions
only non-antennate arthropods
chelicerae, pedipalps, 2 tagmata (prosoma, opisthosoma: cephalothorax, abdomen)
Term
Subphylum Crustacea
Definition
lobsters, crayfish, shrimp, etc.
biramus appendages
2 tagmata: cephalothorax and abdomen
Term
Subphylum Atelocerata
Definition
millipedes, centipedes, insects
Term
Arthropod Characteristics
Definition
Metamerism (tagmata)
Chitinous Exoskeleton
Bilateral Symmetry
Paired, jointed appendages
Open circulatory system (hemocoel)
Ventral nerve cord
Tubular alimentary system
Term
Class Arachnida
Definition
no antennae
cephalothorax & abdomen
chelicerae
pedipalps
most are carnivorous
most are terrestrial
Term
Order Araneae
Definition
spiders
most spin silk
3 US species
Term
Black Widow
Definition
not very aggressive
like dark places
bites are immediately painful
venom contains neurotoxin
Term
Brown Recluse
Definition
AKA: fiddle-backed spider
uniform tan color
encountered accidently
bites are sharp not not initially painful
venom contains necrotoxins
bite is seldom fatal
Term
Tarantula
Definition
bite is painful
poisonous
generally noctournal
Term
Order Scorpiones
Definition
Scorpions
noctournal predators
local species feels like a bee sting
Term
Order Acari
Definition
ticks and mites
Term
Chiggers
Definition
stylosome (feeding tube)
injects fluid to dissolve tissue
Term
Ticks
Definition
have 2 body segments
hard and soft bodied ticks
feed on blood
anticoagulants in saliva
head becomes completely imbedded and anchored in skin
Term
Mites
Definition
only one noticable body region
important pests of fowl
some feed intradermally
Term
Order Opiliones
Definition
Harvestmen
cephalothorax and abdomen broadly joined
carnivorous
scent glands for protection
Term
Subphylum Atelocerata
Definition
one pair of antenna
unbranched appendages (uniramus)
most are terrestrial
insects, milipedes, centipedes
entire appendage makes up mandible
3 classes
Term
Class Diplopoda
Definition
Millipedes
short antennae with 7 segments
2 pairs of legs/body segment
harmless detritus feeders
secretes quinones, phenols, cyanide, etc.
Term
Class Chilopoda
Definition
Centipedes
1 pair of legs/segment
flattened body
antennae with 14 segments
poison claws
Term
Class Hexapoda
Definition
3 body regions
1 pair antennae
tracheal respiratory system
spiracles (openings for air)
wings
3 pairs of legs, 1 pair on each thoracic segment
prolegs (fleshy appendages on abdomen)
compound eyes with facets (ommatidia)
Term
Pterygota
Definition
winged insects
exopterygota: gradual metamorphosis
endopterygota: complete metamorphosis
Term
Exopterygota
Definition
egg -> nymph -> adult
wing pads develop externally
orders blattaria, hemiptera, phthiraptera
Term
Endopterygota
Definition
complete metamorphosis
egg -> larva -> pupa -> adult
wings develop internally
orders coleoptera, lepidoptera, hymenoptera, diptera, siphonaptera
Term
Triatomine Bugs
Definition
"kissing bugs"
Order Hemiptera
Family Reduviidae
Subfamily Tritominae
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