Googling for why Pontus and Seleukids kept outdated Scythe Chariots, I came across this "Battle of Ennium" which occured in 61BC with defeat for Romans.

Well, I cannot get any info about this battle from web apart from this:

http://fanaticus.org/DBA/armies/dba58.html

The article claims that Pliny has "conveniently forgotten" the battle but still does not talk about any historical/modern source for the battle.

Is this battle real or fictional?
Somebody, please enlighten me.

Thanks :)