The Terrestrial Black Ant fly pattern is a popular terrestrial fly pattern used by fly fishermen and women to imitate an ant, which is a common food source for trout and other fish.
 
This fly is typically tied on a size 10-20 hook and features a black body made of fur or synthetic material and a pair of rubber legs to give it a lifelike appearance.
 
The finished fly has a black body and a tapered thorax that gives the fly a realistic shape