It is of a very peculiar form, resembling a very delicate, broad, and flattened valve of a bi-valve shell, such as the genus Iridina, the part where the hinge is being a little produced and raised, and forming the cover of the coccus which secretes the beautiful material just in the same unexplained way as the scale insects form the slender attenuated scales beneath which they are born.
"Journal of an Expedition into the Interior of Tropical Australia In Search of a Route from Sydney to the Gulf of Carpentaria (1848) by Lt. Col. Sir Thomas Livingstone Mitchell Kt. D.C.L. (1792-1855) Surveyor-General of New South Wales"
Thomas Mitchell
It is an extremely beautiful production, quite unlike any thing I have yet seen, and is, I have no doubt, the scale of a coccus.
"Journal of an Expedition into the Interior of Tropical Australia In Search of a Route from Sydney to the Gulf of Carpentaria (1848) by Lt. Col. Sir Thomas Livingstone Mitchell Kt. D.C.L. (1792-1855) Surveyor-General of New South Wales"
Thomas Mitchell
The coccus, too, which has caused so much destruction among our orchards at home, is fortunately still unknown here.
"Account of a Tour in Normandy, Vol. II. (of 2)"
Dawson Turner