What morphological feature is characteristic of Ixodidae, or Hard Ticks?

Answer

Possession of a hard outer shell called a scutum

Hard Ticks (Ixodidae) are defined by having a hard outer shell, or scutum, covering their back. This feature restricts their ability to engorge compared to soft ticks.

What morphological feature is characteristic of Ixodidae, or Hard Ticks?
classificationarachnidparasitetick