| Common Name | Scientific Name | Description | Size | Photo Link |
| Ants | Hymenoptera | usually wingless, ground-dwelling | 3/8 - 3/4 in. |  |
| Aphids, Leafhoppers & Cicadas | Homoptera | most small, suck juices from plants. Cicadas have familiar buzzing song and are an inch or more in length. | 1/2-1 1/2 in. |  |
| Bees Wasps & Hornets | Hymenoptera | 2 pairs of wings, fairly long antennae, most sting | 1/2 - 1 in. |  |
| Beetles: Including Scarab, Stag, Rhino | Coleoptera | hardened wing-covers, rounded shape | 1/4 - 3 in. |  |
| Butterflies | Lepidoptera | fly by day, usually colorful, hold wings vertically at rest | 3/4 - 3 in. |  |
| Centipedes & Millipedes | Chilopoda & Diplopoda | many pairs of legs, long-bodied (not actually insects) | 3/4 - 4 in. |  |
| Cockroaches | Blattaria | Mostly nocturnal. Closely related to mantids, though pronotum (neck-covering) usually extends over downward-pointing head. | 1/2 - 4 in. |
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| Dragonflies & Damselflies | Odonata | 2 pairs of wings, usually found near source of water | 1 1/2 - 3 in. |  |
| Earwigs | Dermaptera | pincers on end of abdomen, often seen on roses and in ears of corn at grocery stores | 1/2 - 1 in. |
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| Flies | Diptera | 1 pair of wings, short antennae, stingless | 1/4 - 1 in. |  |
| Grasshoppers, Crickets & Katydids | Orthoptera | "Hopper" insects, hind pair of legs are longer | 1/2 - 4 in. |  |
| Lacewings, Antlions, Alderflies | Myrmeleontidae | Wings with prominent veins. Antennae long. Antlions like dragonflies with long antennae. Mantispids like mantises with raptorial forelegs. | 1/2- 3 in. |  |
| Mantises | Mantidae | Large. front pair of legs together as if "praying" but used for catching other bugs | 1/4 - 4 in. |  |
| Moths | Lepidoptera | Most fly by night, usually brown and not very colorful, hold wings in tent shape over body | 1/4 - 5 in. |  |
| Spiders | Araneae | 8 legs, often in webs but not always, 2 main body parts (insects have 3) | 1/4 - 3 in. |  |
| Stick-insects (Walkingsticks) | Phasmida | long, skinny, look like twigs, usually brown or green | 3/4 - 6 in. |  |
| Termites | Isoptera | most commonly seen in summertime, male is winged at this time with a reddish body, otherwise clear to white and found underground or in wood. | 1/4 - 1 in. |  |
| True Bugs- Stink Bugs | Hemiptera | some species seem to come in swarms (boxelder bug) and are common on houses and bushes | 1/8 - 3 in. |  |
| Scorpions | Scorpiones | Nocturnal arachnids with two pincers and tail with venomous "stinger" on the end of it. Some species are considered deadly. | 3/4 - 10 in. |
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| Tailless Whipscorpions | Amblypigi | Cave-dwellers and in rodent burrows. Found in deserts. Two long "feelers" are modified legs. Triplicate pincers. | 1/2 - 3 in. |
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| Windscorpions | Solfugidae | Fast as wind, nocturnal arachnids. Jaws proportionately largest in animal kingdom. Non-venomous. | 3/4 - 6 in. |
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| Tarantulas | Theraphosidae | Usually large and covered with hair. Species distinguished as arboreal or terrestrial. Most species are mildly venomous. | 3 - 12 in. |
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| Aquatic Bugs | Various bugs found in water | Various bugs found in water including True Bugs (Hemiptera) and Beetles (Coleoptera) | 1/8 - 3 in. |  |
| Slugs & Snails | Gastropoda | Snails have shells. Slugs don't. | 1 - 10 inches |
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