Chionaspis aspidistrae

Plate 20, "Monograph of the Coccidae of the British Isles", by Robert Newstead (Ray Society, 1900-1902). Figures 1-10 Chionaspis aspidistrae, views of the insects including the female and male insects in situ on a fern leaf (figures1-2) and puparium details. Natural size and at various magnifications. Figures are pasted onto a main backing board. Signed "R.Newstead ad nat del." The facing page is a corrected [in pencil] proof version of captions, "Explanation of Plate XX".