Posterior body margins of female Chionaspis bicalvis and Pinnaspis buxi [Boxwood scale] mb-code 1150425 pre 1737 (1740)

pre 1737 (1740)

This mechanism was installed at the London Bridge Water Works in 1780

8th September 1990

Eagle House was at this time a private school for boys

Posterior body margins of female Chionaspis bicalvis and Pinnaspis buxi [Boxwood scale] mb-code 1150425 pre 1737 (1740)Plate 23, 'Monograph of the Coccidae of the British Isles', by Robert Newstead (Ray Society, 1900 1902). Margins of pygidium of two varieties of scale insects. Figure 1 Chionaspis biclavis. Figures 2 3 Pinnaspis buxi. At x250 and x600 magnifications. Signed 'R. Newstead ad nat del.' cropped. Figure 3 was originally pasted over an alternative figure 1 and has subsequently become detached and loose in the volume. The facing page is an approved [in