Legio IV Scythica 

Legio quarta Scythica (Fourth Scythian Legion) was a Roman legion levied by Emperor M. Antony around 42 BC, for his campaign against the Parthian Empire, hence its other cognomen, Parthica. 

The legion was still active in Syria in the early 5th century. 
The legion's symbol was a capricorn. 

In its first years, the whereabouts of IIII Scythica are uncertain, although it is probable that it took part in Antony's campaign against the Parthians. 

The name suggests that it fought against the Scythians.

The legion is reported to have taken part in civilian tasks, such as the building and keeping of roads.

In his youth, future emperor Vespasian served in this legion.