The lone star tick ( " Amblyomma americanum " ), which is found throughout the Southeastern United States as far west as Texas, is unlikely to transmit the Lyme disease spirochetes, though it may be implicated in a related syndrome called southern tick-associated rash illness, which resembles a mild form of Lyme disease.
22.
The adult lone star tick is sexually dimorphic, with its namesake is derived from a silvery-white, star-shaped spot or " lone star " present near the center of the posterior portion of the adult female shield ( scutum ); adult males conversely have varied white streaks or spots around the margins of their shields.
