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What arthropods are of medical importance in the United States?
Arthropods: Crustaceans, Insects, and Spiders
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Just one in 30 million lobsters is blue. Other mutant colors include yellow and orange. Strangely colored lobsters are mutations of the brown lobster.
| Arthropod | Effect on Human Health |
| Black widow spider (Latrodectus mactans) | Venomous bite |
| Brown recluse or violin spider (Loxosceles reclusa) | Venomous bite |
| Scorpion (Centruroides exilicauda) | Venomous bite |
| Chiggers (Trombiculid mites) | Dermatitis |
| Itch mite (Sarcoptes scabiei) | Scabies |
| Deer tick (Ixodes dammini) | Bite transmits Lyme disease |
| Dog tick, wood tick (Dermacentor species) | Bite transmits Rocky Mountain spotted fever |
| Mosquitoes | Bite transmits disease (West Nile virus, encephalitis, filarial worms) |
| Horseflies, deerflies | Female has painful bite |
| Houseflies | Many transmit bacteria and viruses |
| Fleas | Dermatitis |
| Bees, wasps, ants | Venomous stings (single stings not dangerous unless person is allergic) |