Doug Wechsler / Ambush bug (Phymata sp) on Black-eyed susan (Rudbeckia hirta) on shield bug prey, Morris Arboretum, Philadelphia, Pennsylavania, USA. August.

Doug Wechsler / Wide-footed treehopper (Campylenchia latipes) on Black-eyed susan (Rudbeckia hirta) stem, Morris Arboretum, Philadelphia, Pennsylavania, USA. August.

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined Emerald Moth (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Crossways Preserve, Montgomery County, Philadelphia,...

Ernie Janes / Rudbeckia hirta 'Toto' flowers, cultivated plant in garden.

Pascal Pittorino / Black eyed susan (Rudbeckia hirta) cultivated flowers, in a botanic garden, Var, France, Provence, July

Pascal Pittorino / Black eyed susan (Rudbeckia hirta) flowers, in botanic garden, Var, Provence, France, July.

Doug Wechsler / Dogbane Beetle (Chrysochus auratus) on Black-eyed Susan (Rudbeckia hirta) Houston Meadow, Wissahickon Park, Philadelphia, Pennsylvania, USA, June.

Doug Wechsler / Black-eyed Susan (Rudbeckia hirta) flowering in meadow, Lardner's Point Park, Philadelphia, Pennsylvania, USA, June.

Loic Poidevin / Meadow Brown butterfly (Maniola jurtina) on black-eyed-susans (Rudbeckia hirta) flowers, France, August.