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Species profileAustralia

What is Ixodes holocyclus?

Ixodes holocyclus is the Australian paralysis tick, found mainly along the eastern coast and capable of causing paralysis, allergic reactions and other health effects.

Reviewed by VuxLore® Knowledge Team For People and pet owners

Short answer

Ixodes holocyclus is the Australian paralysis tick, found mainly along the eastern coast and capable of causing paralysis, allergic reactions and other health effects.

At a glance

Larvae have six legs; nymphs and adults have eight. Accurate identification and prompt professional care are especially important when weakness or allergic symptoms occur.

Key takeaways

• It is an Australian east-coast species.

• Its saliva can cause paralysis.

• Pets can deteriorate after the tick is removed and need urgent veterinary care.

A medically and veterinary important tick

This species uses a four-stage life cycle of egg, six-legged larva, eight-legged nymph and eight-legged adult. Moist coastal forest and bush habitat support exposure.

Urgent symptoms require urgent care

Weakness, breathing difficulty, collapse or a severe allergic reaction is an emergency. Do not rely on removing a visible tick as the only response.

Sources and further reading

NSW Health Pathology: Ticked Off: The Tiny Terror of the Bush

US Centers for Disease Control and Prevention: About Ticks and Tickborne Disease