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Insect Orders
Orders of Insect Class
27
Biology
Undergraduate 1
01/07/2013

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Term
Amatabola
Definition
Orders of primitive, wingless insects in which the young hatch from the egg resembling young adults
Term
Pterygote
Definition
Orders of insect that undergo a marked change in form, metamorphosis
Term
Hemimetabola
Definition
a sub group of Pterygota (winged insects)
egg > Larva > Adult
Term
Holometabola
Definition
a sub group of Pterygota (winged)

Egg > Larva > Pupal > Adult
Term
Archaeognatha
Definition
Bristletails
Wingless
Styles
Scavengers
Found in litter, soil and arid regions
Term
Thysanura
Definition
Silverfish
Wingless
Small, elongated, flattened body with silvery scales
scavengers
found in soil, litter, trees but more commonly in buildings.
Term
Ephemeroptera
Definition
Mayflies (paleoptra)
Aquatic larvae
non-functional mouth parts
mating swarms
Term
Odonata
Definition
Dragonflies and Damselflies
Term
Plecoptera
Definition
Stoneflies
Larval stage aquatic
weak flying adults
Term
Blattodea
Definition
cockroaches
eggs laid in toughened case
front wings toughened to protect the membranous hind wings
Term
Isoptera
Definition
Termites
Term
Mantodea
Definition
Mantis
Triangular heads
raptoral front legs
females eat males after copulation
Term
Grylloblattodea
Definition
Rock crawlers
wingless (apterygote)
Rare
high altitudes
Term
Dermaptra
Definition
Earwigs
drab and nocturnal
telescopic abdomen
Term
Orthoptera
Definition
Straight wing- grasshoppers crickets
longer hind legs
saddle shaped pronotum
make sounds with hind legs
Term
Phasmatoda
Definition
(ghost) stick insects
blend into foliage they live in
Term
Embioptera
Definition
(having life) Web spinners
live in sunken galleries
females do not venture out of galleries only males to fertilise other galleries' females
Term
Zoraptera
Definition
Small termite like insects
eat fungal threads
only 30 species described
Term
Psocoptera
Definition
(gnawed wing) Booklice/ barklice
common, cryptic, small
adult and larval stages feed on fungi lichen algae and plant debris
Term
Phthiraptera
Definition
(louse, wingless) Parasitic Lice
permanent ectoparasites
vectors of human and animal disease.
Term
Hemiptera
Definition
(halfwing) Bugs, aphids, hoppers
piercing and sucking rostrum
disease and pests
large abundant and diverse group
Periodical Cicadas 17/13 years
Term
Thysanoptera
Definition
Thrips
liquid feeders
pests and disease vectors
Term
Megaloptera
Definition
(large wing) Alderflies
aquatic larvae poor adult fliers
Term
Raphidioptera
Definition
(needle wing) Snake flies
Long neck appearance
larvae live under bark
Term
Neuroptera
Definition
(nervewing) lace wing antlions
Term
Coleoptera
Definition
(sheath wing) Beetles
30% of all known animals are beetles
prothorax is distinct
Term
weevils
Definition
Curculionidae are most species rich family
destroys crops
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