Still Life with Flowers on a Marble Slab is a 1716 floral painting by Rachel Ruysch.
[1] Ruysch was then at the peak of her fame and her works sold for large sums in her lifetime.
The identified blooms and bugs are: Cistus, poppy, Viola × wittrockiana, Calendula, Calystegia, Dianthus caryophyllus, Rosa, Green bottle fly, Bee beetle, wasp, damselfly, burying beetle, Dianthus barbatus, Saxifragella, Iris.
A well-documented copyist of Ruysch's works was the Dutch painter Catharina Backer, who also owned two of Ruysch's paired large canvases, commissioned by her father-in-law, the art collector Pieter de la Court van der Voort, in 1710.
It was certainly in the collection of another wealthy Dutch woman art collector of note, Lucretia Johanna van Winter, who purchased a painting by Ruysch in 1820 and who when she married, brought a collection of 171 paintings (76 she bought herself).