No. They are not indigenous to Iraq. (Camel Spiders, otherwise known as wind-scorpions, are scientifically known as Solifugae) These spider relatives are found on all the continents except Oceania...
An Arachnid is an arthropod with eight or more legs, making the Solifugae (AKA camel spider) an arachnid, but not a "true" spider. Anything in the Arachnid family is considered a spider.