ID#: 8685
This photograph depicted a dorsal view of a male lone star ixodid, or hard tick, Amblyomma americanum. The large chitinous scutum on this tick’s dorsal abdomen, identified this as a male, whereas, in the female tick (PHIL 8682, 8683), the scutum is considerably reduced, thereby, allowing for abdominal enlargement when it becomes engorged during ingestion of a blood meal. Also, note the four pairs of jointed legs, placing ticks in the phylum, Arthropoda, and the class, Arachnida. We can also see the tick’s capitulum, or mouthparts, as they extend from the tick’s anterior end.
High Resolution: Click here for hi-resolution image (8.9 MB)
Content Provider(s): CDC/ Dr. Amanda Loftis, Dr. William Nicholson, Dr. Will Reeves, Dr. Chris Paddock
Creation Date: 2006
Photo Credit: James Gathany
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.