Prairie Fleabane (Erigeron strigosus) with Sawfly.
Fleabane is another late springtime arrival in the Ozarks. It's in the same order (Asterales) as sunflowers, chrysanthemum and regular daisies (where the resemblance is fairly obvious) as well as less recognizable cousins like lettuce, wormwood and sagebrush. Sawflies are a fairly common visitor to this plant; some species uses them as a food source, and coincidentally serve as pollinators.
One of the more entertaining references to this plant in folk herbalism comes Miss E. S. Rohde's "Old English Herbals:" 'Fleabane bound to the forehead is a great helpe to cure one of the frensie.'
Seriously. You can look it up, right here: http://www.gutenberg.org/files/33654/33654-h/33654-h.htm
fleabaneerigeronstrigosussawflyasteralesdaisydaisiesRohde'sOld English Herbals