Among the more common biting insects in the United States are the following:
Sand flies
Horseflies
Deerflies
Blackflies
Stable flies
Mosquitoes
Fleas
Kissing bugs
Wheel bugs
Certain water bugs
Ticks Tick Bites Ticks, like mites, are closely related to spiders. These small creatures, sometimes carried as parasites on the bodies of humans and animals, may transmit disease to humans. (See also Introduction... read more 
, spiders Spider Bites Almost all spiders are poisonous. However, the fangs of most species are too short or too fragile to penetrate human skin. Although at least 60 species in the United States have been implicated... read more 
, and mites Mite Bites Mites, like ticks, are closely related to spiders. Biting mites, sometimes carried as parasites on the bodies of humans and animals, may transmit disease to humans. (See also Introduction to... read more are not insects.
(See also Introduction to Bites and Stings Introduction to Bites and Stings Many creatures, including humans, bite when frightened or provoked. Others include Alligators and crocodiles Iguanas Mites Ticks read more .)
All of these, except wheel bugs and water bugs, also suck blood, but none is venomous. The bites of these insects may be irritating because of the components of their saliva. Most bites result in nothing more than a small, red, itchy bump. Sometimes, people develop a large sore (ulcer), with swelling and pain. The most severe reactions occur in people who are allergic to the bites or who develop an infection after being bitten. Fleas can cause allergic reactions sometimes without biting.
The bite should be cleaned, and an ointment or cream containing an antihistamine, an anesthetic, a corticosteroid, or a combination may be applied to relieve itching, pain, and inflammation. People with multiple bites can take an antihistamine by mouth. People who are allergic to the bite should seek medical attention immediately or use an emergency allergy kit containing a preloaded syringe of epinephrine.
Infectious Disease Spread by Insects
More significant than the bites themselves, certain insect bites in certain parts of the world can spread infectious disease. The following are some examples:
Mosquito bites can transmit several diseases, including
Flea bites can transmit
Lice may transmit
Some other insect bites and the diseases they can cause include
