British Isles
1900
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Description
Plate 19, "Monograph of the Coccidae of the British Isles", by Robert Newstead (Ray Society, 1900-1902). Figures 1-9 Chioaspis salicis, views of the insects including the winged male (figure 9), the apterous male (figure 8), infestation of willow branch (figure 1) and copulating male (figure 3a). Natural size and at various magnifications. Figure 2a cut into the main backing board. Signed "R.Newstead ad nat del." Some rough sketches are visible verso. The facing page is a corrected [in pencil] proof version of captions, "Explanation of Plate XIX".
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