 What
are the Orders of Insects?
There are 32 orders of insects, but most entomologists
divide insects into somewhere between 24 to 32
orders because of different interpretations on
relationships between the orders, especially regarding
questions of evolution some of their proposed
common ancestors.
A Few Samples of Orders of Insects
A) Lepidoptera Order - Butterflies & Moths
B) Odonata Order - Dragonflies, Damselflies, Skimmers,
Mosquito Hawks, Clubtails, & Darners
C) Ephemeroptera Order - Mayflies, Spinners &
Dunns
D) Mecoptera Order - Scorpionflies, Hangingflies
& Earwigflies
E) Hemiptera Order - True Bugs, Bed bugs, Stink
bugs, Pirate bugs, etc
F) Diptera Order - Flies, Midges, Mosquitoes,
Gnats, Punkies & Sheep keds
G) Dermaptera Order - Earwigs
H) Hymenoptera Crder - Ants, Bees, Wasps, Hornets,
Mud daubers, Sawflies & Horntails
I) Coleoptera Order - Beetles, Weevils, Chafers
& Fireflies, etc
J) Neuroptera Order - Lacewings, Antlions Fishflies,
Dobsonflies, Alderflies & Snakeflies
K) Homoptera Order - Cicada, Hoppers, Aphids,
Plant lice, Cicadas, Scale insects, Whiteflies,
Mealybugs, etc
L) Blattaria Order - Cockroaches
M) Mantodea Order - Mantids
N) Orthoptera Order - Grasshoppers, Crickets,
True Locusts & Katydits
O) Phasmid Order - Walking Sticks
P) Siphonaptera Order - Fleas
Q) Thysanoptera - Thrips
R) Thysanura Order - Silverfish, Firebrats &
Bristletails
S) Trichoptera Order - Caddisflies
T) Plecoptera Order - Stoneflies
S) Psocoptera Order - Book lice
U) Anoplura Order - Sucking lic
V) Isoptera Order - Termite
W) Non Insects - Members of the Phylum Arthropoda
What are Some Non-Insect Classes?
 Members
of the Phylum Arthropoda contain the Class Insecta
and many related animals that frequently get mistaken
for insects. Spiders are among these relatives
and can be distinguished from their insect kin
by their eight, rather than six, legs. They also
have two body segments comprised of a cephalothorax
and an abdomen as apposed to the three main body
segments: head, thorax, and abdomen of insects.
Some of the non-insects include: spiders, scorpions,
whipscorpions, harvestmen, ticks, mites, sea spiders,
crustaceans, millipedes, centipedes, pauropods
and symphylans.
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