Pictures of the damage that is caused by each of these insects.
Click pictures to enlarge.
Mouseover each picture to see what that particular insect looks like.
The larval form of moths—these insects feed on turf grasses, chewing them down to the ground. Fall armyworms are a major pest to southern lawns. 
Clay yellow to reddish brown to jet black in color. The beetles burrow in the grass stems near the surface of the soil and also feed on the leaves. 
Normally these insects are most active during dry, hot weather & need treatment before too much of the lawn is lost. 
The insects chew off the grass blades close to the soil leaving brown stubble. Early August is typically when we see the heaviest damage, sometimes damage is also heavy in June. 

Arkansas Elite Turf, LLC, Lawn & Tree Care, Hot Springs, AR