Bug FAQAmblyomma triste
Amblyomma triste · Order: Ixodida · Family: Ixodidae
Source: Wikipedia
Amblyomma triste is found in several South American countries including Venezuela, Argentina, Brazil, Colombia, Peru and Uruguay. The tick can transmit Rickettsia parkeri to people, producing symptoms like Rocky Mountain spotted fever.
Source: Wikipedia
Does it bite or sting?
The species carries the human-infectious Rickettsia parkeri, which causes illness similar to Rocky Mountain spotted fever.
Source: Wikipedia
Where it lives
It can be found in Venezuela, Argentina, Brazil, Colombia, Peru and Uruguay.
Source: Wikipedia
Where it comes from
Its range includes Venezuela, Argentina, Brazil, Colombia, Peru and Uruguay.
Source: Wikipedia
Lookalikes
It resembles Amblyomma maculatum and Amblyomma tigrinum, both also carriers of Rickettsia parkeri.
Source: Wikipedia
Where it is found in the US
Recorded in 1 of 51 states and DC. Most records: Arizona.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
More photos
Questions people ask
Where is Amblyomma triste found?
It occurs in Venezuela, Argentina, Brazil, Colombia, Peru and Uruguay.
Source: Wikipedia
What other ticks look like Amblyomma triste?
It looks like Amblyomma maculatum and Amblyomma tigrinum.
Source: Wikipedia
Same family (Ixodidae)
American Dog TickDermacentor variabilisCan spread germs or disease
Eastern Black-legged TickIxodes scapularisCan spread germs or disease
Lone Star TickAmblyomma americanumCan spread germs or disease
Gulf Coast TickAmblyomma maculatumCan spread germs or disease
Western Black-legged TickIxodes pacificusCan spread germs or disease
Brown Dog TickRhipicephalus sanguineusCan spread germs or diseaseSources
- Wikipedia: https://en.wikipedia.org/wiki/Amblyomma_triste
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.