← Back to Tick Species
Visual guideNorth America

How do male and female Rocky Mountain wood ticks differ?

The adult female has a smaller scutum that permits expansion during feeding, while the adult male's scutum covers most of its back.

Reviewed by VuxLore® Knowledge Team For Wildlife professionals and householders

How do male and female Rocky Mountain wood ticks differ?

Short answer

The adult female has a smaller scutum that permits expansion during feeding, while the adult male's scutum covers most of its back.

At a glance

A public-domain CDC comparison of female and male Rocky Mountain wood ticks.

Key takeaways

• Adult males and females have different scutum proportions

• Feeding changes the female's body shape

• Geography and several anatomical features are needed for identification

Comparing adult female and male scuta

This dorsal photograph shows female and male Dermacentor andersoni. The female's smaller scutum leaves more expandable body surface than the male's larger shield.

Sources and further reading