Quick Answer
To identify different tick species in the field, observe their body shape, color, and size, as well as the presence of distinctive features such as a black spot on the scutum or a prominent apical plate. Use a magnifying glass or hand lens to get a closer look, but be cautious not to touch the tick with your bare hands. Consult a tick identification guide for accurate identification.
Inspect Body Shape and Size
When examining a tick, note its overall shape and size. For example, the American dog tick (Dermacentor variabilis) is typically larger and more elongated than the blacklegged tick (Ixodes scapularis). The lone star tick (Amblyomma americanum) has a distinctive oval shape with a distinctive single white spot.
Examine Scutum and Apical Plate
Look for distinctive features such as a scutum, which is a hardened plate on the tick’s back, and the apical plate, which is a small, usually light-colored structure at the end of the tick’s mouthparts. The blacklegged tick has a distinctive black spot on its scutum, while the American dog tick has a more rounded scutum. The lone star tick has a prominent apical plate.
Use a Magnifying Glass or Hand Lens
When examining ticks, use a magnifying glass or hand lens to get a closer look. This will help you identify subtle features such as the number and arrangement of hairs on the tick’s body, as well as the shape and size of the tick’s mouthparts. When using a magnifying glass, hold it near the tick to avoid touching it with your bare hands.
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