Species profile

Turicata soft tick

Ornithodoros turicata

A rapidly feeding soft tick associated with caves and animal burrows in the south-central United States and Mexico.

Adult female Ornithodoros turicata soft tick
female · Adult · not_stated

Image credit:U.S. Army Center for Health Promotion and Preventive Medicine; public domain Licence terms — Abrirá numa nova janela.Source — Abrirá numa nova janela.

Detailed ventral view of the head of an adult female Ornithodoros turicata soft tick
female · Adult · not_stated

Image credit:U.S. Army Public Health Center; public domain Licence terms — Abrirá numa nova janela.Source — Abrirá numa nova janela.

U.S. Army diagnostic detail plate showing anatomical features of Ornithodoros turicata
not_stated · Adult · not_stated

Image credit:U.S. Army Public Health Center; public domain Licence terms — Abrirá numa nova janela.Source — Abrirá numa nova janela.

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Quick facts

Family: Argasidae. Genus: Ornithodoros. Soft tick.

Identification

Soft-bodied tick without a dorsal scutum, with mouthparts not visible from above. Definitive species identification requires specialist examination.

Photographs and location alone may be insufficient for confirmation; use expert morphological examination when reliable species identification is required.

Photographs alone cannot always confirm this species. Geographic location and host are supporting context, not conclusive identification.

Sex and appearance differences

Soft ticks show limited external sexual dimorphism compared with hard ticks and can pass through multiple nymphal instars.

Life cycle

Multihost soft-tick life cycle with a larval stage and multiple possible nymphal instars before adulthood. Feeding is brief at nymphal and adult stages.

Life stages

  • Egg
  • Larva
  • Nymph
  • Adult

Seasonal activity

Exposure is linked more strongly to entering infested caves or burrows than to a simple outdoor season.

Hosts

  • Humans (Homo sapiens)
  • Rodents
  • Dogs (Canis lupus familiaris)

Habitats

  • Caves and animal burrows

Distribution

CDC associates this species with the south-central United States and caves; records also occur in Mexico.

Presence, established populations, habitat suitability and disease risk are distinct evidence categories.

Countries and regions

  • United States — established_regional

    CDC associates this species with the south-central United States and caves; records also occur in Mexico.

Medical and veterinary relevance

Bites can be brief and unnoticed. This species is a confirmed vector of soft tick relapsing fever.

Dogs may be exposed in infested environments; veterinary and zoonotic significance should be assessed locally.

Pathogens and diseases

  • Soft tick relapsing fever — disease

Detection of a pathogen in a tick does not by itself establish that the species is a confirmed vector.

Vector and pathogen evidence

Confirmed vector of Borrelia turicatae, a cause of soft tick relapsing fever.

Medical importance

Veterinary importance

Prevention and removal guidance

Use current public-health and veterinary guidance, avoid known tick habitats where practical, use suitable repellents or protective clothing, and check people and animals after exposure.

Remove attached ticks promptly using fine-tipped tweezers or an appropriate tick-removal tool. Seek medical or veterinary advice when symptoms or concerns arise.

Important identification and health information

Educational information and limitations

Photographs and visible features may be insufficient for definitive identification.

This educational information is not a diagnosis or a substitute for medical or veterinary advice.

This educational information does not replace examination or advice from a qualified veterinary professional.

Presence, established populations, habitat suitability and disease risk are distinct evidence categories.