![Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale] by Robert Newstead](https://previews.magnoliabox.com/royalsociety/mb_hero/rs-9062/GLOBAL-FAP-8X12_scaled-bordered_850.jpg)
Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale]
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Product images of Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale]
![Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale] by Robert Newstead](https://previews.magnoliabox.com/royalsociety/far_corner/rs-9062/GLOBAL-FAP-8X12_scaled-bordered_405.jpg)

![Detail of Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale] by Robert Newstead](http://www.magnoliabox.com/cdn/shop/products/rs-9062_1024x1024.jpg?v=1706886499)
Product details Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale]
Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale]
Plate 21, 'Monograph of the Coccidae of the British Isles', by Robert Newstead (Ray Society, 1900-1902). Figures 1-8 Chionaspis biclavis, views of the insect at natural size on a branch of tea plant, and details of adult females. Figures 9-10 Chionaspis aspidistrae, views of normal and parasitised female. Figures 11-13 Chionaspis salicis, view and details of adult females. Natural size and at various magnifications. Signed 'R.Newstead ad nat del.' The facing page is a corrected [in pencil] proof version of captions, 'Explanation of Plate XXI'.
Original: pencil and watercolour on board. ca. 1900
- Image ref: RS-9062
- The Royal Society
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![Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale] by Robert Newstead](http://www.magnoliabox.com/cdn/shop/products/rs-9062_1024x1024.jpg?v=1706886499)