Insects are invertebrates that are taxonomically referred to as the class Insecta. They are the most numerous and most widespread terrestrial taxon within the phylum Arthropoda. Insects are the most diverse group of animals on the earth, with around 925,000 species described—more than all other animal groups combined. Insects may be found in nearly all environments on the planet, although only a small number of species have adapted to life in the oceans where crustaceans tend to predominate.
There are approximately 5,000 dragonfly species, 2,000 praying mantis, 20,000 grasshopper, 170,000 butterfly and moth, 120,000 fly, 82,000 true bug, 350,000 beetle, and 110,000 bee and ant species described to date. Estimates of the total number of current species, including those not yet known to science, range from two to thirty million, with most authorities favoring a figure midway between these extremes. Adult modern insects range in size from 555 mm (see Phobaeticus serratipes) to 0.139 mm (see Dicopomorpha echmepterygis)
The study of insects (from Latin insect, meaning "cut into sections") is called entomology, from the Greek εντομος, also meaning "cut into sections" .
More on [ Insect ]
Centipedes and Millipedes :: Invertebrates
Scorpions :: Invertebrates
Spiders, Mites, and Ticks :: Invertebrates
Worms :: Invertebrates

3-D Insects - Virtual reality illustrations of various insects and arachnids.
AntBoy's Bugworld - Brief descriptions of different times of insects, along with links to related sites.
Ants of Arizona - A large collection of photos of ants in the their natural habit in Arizona. Photos are divided by species.
Meta Description: [ Photographs of Arizona Ants ]
Bug Bios - The fascinating stories of insects and the roles they play in our lives. Includes photos, lesson ideas, and links to other sites.
Meta Description: [ The fascinating stories of insects and the roles they play in our lives. Cultural entomology, insect macrophotography, educational resources and links to other web sites. ]
Bug Club - Amateur Entomologists' Society - Club for insect enthusiasts. Includes a sign-up for entymology pen pals.
Meta Description: [ The Bug Club is the junior section of the Amateur Entomologists' Society. The Amateur Entomologists' Society (AES) is the UK's leading organisation for people interested in insects. Our members include novices and professional scientists alike - from the very young to those with a lifelong intere... ]
Bug Identification - A dichotomous key for identifying unknown bugs.
BugCamp - Learn about all sorts of different kinds of bugs.
CityBugs - Urban entomology focusing on the San Francisco Bay, this site explores urban biodiversity. Contains photos, All About Bugs, where to look for insects, games, puzzles.
Deadly Insects: Killer Bees and Termites Wreak Havoc - Article reveals the tremendous damage insects can do.
Earwig - Lists where they can be found, what they eat, and what they look like.
Fun Stuff Coloring Book - Printable coloring pages help kids learn to identify harmless insects and troublesome household pests.
Meta Description: [ Print out and have fun with these coloring book pages - from Western Exterminator. Kids can identify harmless insects and troublesome household pests. ]
Gardensafari: Bugs - See pictures and view brief information about many types of bugs found in a garden.
Meta Description: [ Bugs in our garden with lots of pictures. ]
Get This Bug Off of Me! - It's a natural reaction to be frightened of some insects, but some large bugs are not harmful at all. This site teaches kids to distinguish between harmless bugs and their not-so-harmless relatives.
Insect Safari - Name that bug, bug identification, printable insect pictures, and teacher lessons.
Meta Description: [ The Orkin Man is the pest control expert. Orkin’s expert exterminators can treat termites and other pests and rodents. Trust Orkin for your termite inspection and pest control service needs. ]
Insecta Inspecta World - The world is covered in bugs, so shouldn't you know a little bit about them? Find out what you need at Insecta Inspecta World.
Meta Description: [ The world is convered in bugs, so shouldn't
you know a little bit about them? Find out what you need at Insecta Inspecta
World! ]
Insectclopedia - An encyclopedia of Internet insect resources.
Meta Description: [ Insect encyclopedia find it here. Bug us. ]
Insectmania - Celebrate the unique qualities of the insect world through the artwork and written expressions of children. Insect humor, facts, and related sites are also featured.
Katerpillars and Mystery Bugs - Recipes with bug themes, guess the bug, and what bugs do in each month of the year.
Kentucky Critter Files - University of Kentucky website providing photos and information about the state's insects, spiders, and other arthropods.
Leafcutter Ants of Costa Rica - Photos of leafcutter ants in action.
Let's Talk About Insects - Explains what is and isn't an insect. Includes the parts of the body, how they eat, see, and breathe, why insects are helpful and when they are pests.
Meta Description: [ Let's Talk About INSECTS ]
Mosquito Information - Provides information about mosquitoes such as life cycle, what the name mosquito means, and some diseases that are commonly spread by mosquitoes.
Most Wanted Bugs - Microscope images of insects by Dennis Kunkel Microscopy, Inc.
Meta Description: [ Microscopy, Science Photography and Science Education Web Site by Dennis Kunkel Microscopy, Inc. The Image Gallery Contains Hundreds of Micrographs of Scientific, Biological and Medical Subjects Photographed with Light and Electron Microscopes. ]
Myrmecos.net: Insect photography by Alex Wild - Close-up images of many insects including many species of ants, bees, beetles, and butterflies.
Natural History Museum: Naturecams - Has live webcams looking at ants and beetles.
Nature: Alien Empire - Video clips and Flash animations give a first-hand look into the weird world of insects. From PBS.
Meta Description: [ Adobe ImageReady(tm) HTML Output, Adobe ImageReady(tm) HTML Output ]
NOVA Online: Creepy Crawlies - Explores the kinds of bugs that live in your home and even on your body. From PBS.
Quia - Spiders and Insects - Java games and flashcards help students learn terms related to insects.
Silkworm Information - Information about the appearance, natural history, and habitat of the silkworm.
The Creepy Crawly Zoo - Traveling live insect exhibit. Offers school visits, bug listings, and links.
The Garden Safari: Wasps, Sawflies, Ants and Bees - Numerous pictures, facts, and videos of bumblebees, mining bees, wasps, and ants. Includes a page of unidentified wasps and a call for viewers to help identify them.
Meta Description: [ Wasps, bees and ants in our garden with lots of pictures ]
The Great Bug Hunt - Play a game to learn about predators and pollinators.
Meta Description: [ EcoKids is a web site maintained by Earth Day Canada. ]
UF Book of Insect Records - The Guiness Book of World Records for Insects. Includes the fastest flier, most tolerant of cold, largest, and smallest eggs.
We're the Insects - Discover information about the insects as a group, its body sections, growth patterns, the five sense and food sources.
Wonderful World of Insects - A kid-friendly site with an abundance of information about insects and related organisms.
Meta Description: [ The Wonderful World of Insects, everything about insects in an easy to read style. ]
Y.E.S. Minibeast World - Classification, profiles, trivia, folklore, role of insects in gardening, and teacher resources.
Yucky Roach World - Humorous information about cockroach lifestyle, anatomy and amazing cockroach facts.
| Miniscule (insects) | |
| Next Video | |