A thing that has no lasting value; an insect that lives only for one day. (Plural: ephemera).
And this is man, the myriad one,
Dust's flower and time's ephemeron.
Bliss Carman, Behind the Arras: A Book of the Unseen. Amazon
She had seen that the finger of Death was upon her bosom - that, like the ephemeron, she had been made perfect in loveliness only to die; but the terrors of the grave to her lay solely in a consideration which she revealed to me, one evening at twilight, by the banks of the River of Silence.
Together they evoke a world in swift transition, in which these modest inventions loom large for a while - universal ephemera, destined to be soon lost or thrown away as circumstances changed, but preserved in this collection for their evocative power.
James Fenton, Guardian, 30 September 2006. Guardian
When I did finally turn to writing, I was helped immensely in my account by my mother's squirrelling away of every last item of ephemera concerning their affair - including the bus ticket that first brought them together, discovered under her bed after she died and now in the National Library of Canada.
Christopher Barker, The Observer, Observer
witing about his book, The Arms of the Infinite. Amazon
Finally, I drove to the Museo del Mar (85 pesos entry), a warehouse-sized museum chock-full of marine ephemera: 30-foot whale skeletons, fetal dolphins in formaldehyde, giant turtle shells and a stuffed manta ray whose placard identified it as the species that killed the ''Crocodile Hunter'' Steve Irwin.