Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide


Boophilus annulatus



Boophilus annulatus


  • Last modified
  • 18 November 2019
  • Datasheet Type(s)
  • Vector of Animal Disease
  • Preferred Scientific Name
  • Boophilus annulatus
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Metazoa
  •     Phylum: Arthropoda
  •       Subphylum: Chelicerata
  •         Class: Arachnida
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Boophilus ticks are small inornate ticks having a short and broad capitulum with rounded lateral margins. The basis of the capitulum is hexagonal in shape. Males bear elongated, pointed anal and adanal shields. The eyes are difficult to see and festoons are absent. Boophilus ticks are parasites of ungulates and have a compressed life cycle with all stages parasitic on the same host (one-host tick), and are among the most important pests and disease vectors affecting livestock. B. annulatus is one of the five Boophilus species.


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Preferred Scientific Name

  • Boophilus annulatus (Say, 1821)

Other Scientific Names

  • Boophilus calcaratus

International Common Names

  • English: blue tick; Texas fever tick; tick, blue; tick, Texas fever

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Metazoa
  •         Phylum: Arthropoda
  •             Subphylum: Chelicerata
  •                 Class: Arachnida
  •                     Subclass: Acari
  •                         Order: Parasitiformes
  •                             Suborder: Ixodida
  •                                 Family: Ixodidae
  •                                     Genus: Boophilus
  •                                         Species: Boophilus annulatus

Hosts/Species Affected

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B. annulatus occurs mainly on cattle, but is also found on horses and small ruminants.


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B. annulatus originates in the southern part of the former USSR, occurs in the Middle East and the Mediterranean area, and has moved southwards into Africa into a belt from West Africa to southern and central Sudan (FAO, 1984). The tick was introduced into Mexico, from where it spread into much of the southern USA before it was virtually eradicated together with B. microplus.

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Last updated: 10 Jan 2020
Continent/Country/Region Distribution Last Reported Origin First Reported Invasive Reference Notes


CameroonPresentCABI Data Mining (2001)
Central African RepublicPresentCABI Data Mining (2001)
EgyptPresentCABI Data Mining (2001)
EthiopiaPresentCABI Data Mining (2001)
GhanaPresentCABI Data Mining (2001)
GuineaPresentCABI Data Mining (2001)
Guinea-BissauPresentCABI Data Mining (2001)
LibyaPresentCABI Data Mining (2001)
MaliPresentCABI Data Mining (2001)
MoroccoPresentCABI Data Mining (2001)
NigeriaPresentCABI Data Mining (2001)
SudanPresentCABI Data Mining (2001)
TunisiaPresentCABI Data Mining (2001)


ArmeniaPresentCABI Data Mining (2001)
GeorgiaPresentCABI Data Mining (2001)
IndiaPresentCABI Data Mining (2001)
-GujaratPresentCABI Data Mining (2001)
-KarnatakaPresentCABI Data Mining (2001)
-Tamil NaduPresentCABI Data Mining (2001)
IranPresentCABI Data Mining (2001)
IraqPresentCABI Data Mining (2001)
IsraelPresentCABI Data Mining (2001)
KazakhstanPresentCABI Data Mining (2001)
KyrgyzstanPresentCABI Data Mining (2001)
PakistanPresentCABI Data Mining (2001)
Saudi ArabiaPresentCABI Data Mining (2001)
Sri LankaPresentCABI Data Mining (2001)
TurkeyPresentCABI Data Mining (2001)
TurkmenistanPresentCABI Data Mining (2001)
YemenPresentCABI Data Mining (2001)


BulgariaPresentCABI Data Mining (2001)
CyprusPresentCABI Data Mining (2001)
ItalyPresentCABI Data Mining (2001)
PortugalPresentCABI Data Mining (2001)
-MadeiraPresentCABI Data Mining (2001)
RussiaPresentCABI Data Mining (2001)
Serbia and MontenegroPresentCABI Data Mining (2001)
SpainPresentCABI Data Mining (2001)

North America

MexicoPresentCABI Data Mining (2001)
Puerto RicoPresentCABI Data Mining (2001)
Trinidad and TobagoPresentCABI Data Mining (2001)
United StatesPresentCABI Data Mining (2001)
-LouisianaPresentCABI Data Mining (2001)
-TennesseePresentCABI Data Mining (2001)
-TexasPresentCABI Data Mining (2001)


French PolynesiaPresentCABI Data Mining (2001)

South America

BoliviaPresentCABI Data Mining (2001)
BrazilPresentCABI Data Mining (2001)
ColombiaPresentCABI Data Mining (2001)


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Anonymous, 1984. Ticks and Tick-borne Disease control. A practical field manual. Volume 1, Rome, Italy: Food and Agriculture Organization of the United Nations.

Fragoso H; Hoshman Rad P; Ortiz M; Rodríguez M; Redondo M; Herrera L; Fuente Jde la, 1998. Protection against Boophilus annulatus infestations in cattle vaccinated with the B. microplus Bm86-containing vaccine Gavac. Vaccine, 16(20):1990-1992; 13 ref.

Matthysse JG; Colbo MH, 1987. The ixodid ticks of Uganda. College Park, Maryland, USA: Entomological Society of America, 426 pp.

Willadsen P; Jongejan F, 1999. Immunology of the tick-host interaction and the control of ticks and tick-borne diseases. Parasitology Today, 15(7):258-262.

Distribution References

CABI Data Mining, 2001. CAB Abstracts Data Mining.,

Distribution Maps

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