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Amblyomma americanum

Common name: Lone Star tick

Amblyomma americanum. Graphic: Centers for Disease Control and Prevention.

Geographic distribution

Present mostly in southern Indiana counties. It’s widely distributed in the eastern United States, but more common in the South. Click here to see the geographic distribution of ticks that bite humans in the United States.

Known distribution of Lone Star ticks (Amblyomma americanum) in Indiana. Updated April 2019.

Life cycle

The Lone Star tick life cycle consists of four stages (egg, larva, nymph and adult) and usually takes two years to complete. These ticks are known to be aggressive feeders and will pursue many different species of animals for a blood meal. The nymphs and adult females most commonly bite humans. The greatest risk of being bitten occurs in spring and summer.

Adult female Lone Star tick (Amblyomma americanum) (right) with larva (left) and nymph (center). Photo: Indiana State Department of Health.

Associated diseases

Prevention

The best way to prevent diseases associated with Lone Star ticks is to avoid tick bites. Please see our tick prevention page for more information.

Please visit the Midwest Center of Excellence in Vector-Borne Disease webpage for more information about American dog ticks.

Images

Female Lone Star tick (Amblyomma americanum). Photo: Centers for Disease Control and Prevention.

 

Male Lone Star tick (Amblyomma americanum). Photo: Centers for Disease Control and Prevention.

 

 

Page Last Updated: July 11, 2019

Page Last Reviewed: September 7, 2018