Sucking Plant bugs
Common species are aphids(below), leafhoppers, and chinch bugs.
Blade sucking insects that damage leaves and grass by sucking sap out of them. damage appears as pale areas, or yellow streaking.
You can deal with these bugs by keeping your herbs well watered. removing affected leaves and throwing away infested plants will keep the problem from spreading. Spray water on them with a hose may also help.