🕷️ Amblyomma cajennense
Amblyomma cajennense is a species of hard tick historically known as the Cayenne tick. It is found mainly in Central and South America and parts of the Caribbean.
🧬 Important Update
What was once grouped as Amblyomma cajennense is now recognized as a species complex (several closely related species). Scientists reclassified it in recent years, so depending on location, the tick may now have a slightly different scientific name.
🩸 Why It Matters
This tick is medically important because it can transmit serious diseases, including:
- Rocky Mountain spotted fever–like illnesses (caused by certain Rickettsia bacteria)
- Other tick-borne infections affecting humans and animals
In some regions of South America, related species are major vectors of Rickettsia rickettsii, the bacterium responsible for severe spotted fever.
🐎 Hosts
It feeds on:
- Horses (very common host)
- Cattle
- Dogs
- Wildlife
- Humans
🌎 Where It’s Found
- Brazil
- Colombia
- Venezuela
- Mexico (some regions)
- Caribbean islands
It prefers:
- Warm climates
- Grasslands
- Rural and agricultural areas
⚠️ Prevention Tips
- Wear long sleeves and pants in tick-prone areas
- Use EPA-approved insect repellents
- Check skin after outdoor exposure
- Remove ticks promptly with fine-tipped tweezers
If you’re asking because you found one or were bitten, tell me the country or region — that helps determine the actual species and disease risk.
